21603 lines
659 KiB
JavaScript
21603 lines
659 KiB
JavaScript
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.dxf = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = void 0;
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var _logger = _interopRequireDefault(require("./util/logger"));
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var _parseString = _interopRequireDefault(require("./parseString"));
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var _denormalise2 = _interopRequireDefault(require("./denormalise"));
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var _toSVG2 = _interopRequireDefault(require("./toSVG"));
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var _toPolylines2 = _interopRequireDefault(require("./toPolylines"));
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var _groupEntitiesByLayer = _interopRequireDefault(require("./groupEntitiesByLayer"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
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function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
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var Helper = /*#__PURE__*/function () {
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function Helper(contents) {
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_classCallCheck(this, Helper);
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if (!(typeof contents === 'string')) {
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throw Error('Helper constructor expects a DXF string');
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}
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this._contents = contents;
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this._parsed = null;
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this._denormalised = null;
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}
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_createClass(Helper, [{
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key: "parse",
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value: function parse() {
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this._parsed = (0, _parseString["default"])(this._contents);
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_logger["default"].info('parsed:', this.parsed);
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return this._parsed;
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}
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}, {
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key: "denormalise",
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value: function denormalise() {
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this._denormalised = (0, _denormalise2["default"])(this.parsed);
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_logger["default"].info('denormalised:', this._denormalised);
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return this._denormalised;
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}
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}, {
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key: "group",
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value: function group() {
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this._groups = (0, _groupEntitiesByLayer["default"])(this.denormalised);
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}
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}, {
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key: "toSVG",
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value: function toSVG() {
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return (0, _toSVG2["default"])(this.parsed);
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}
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}, {
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key: "toPolylines",
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value: function toPolylines() {
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return (0, _toPolylines2["default"])(this.parsed);
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}
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}, {
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key: "parsed",
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get: function get() {
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if (this._parsed === null) {
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this.parse();
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}
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return this._parsed;
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}
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}, {
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key: "denormalised",
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get: function get() {
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if (!this._denormalised) {
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this.denormalise();
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}
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return this._denormalised;
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}
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}, {
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key: "groups",
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get: function get() {
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if (!this._groups) {
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this.group();
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}
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return this._groups;
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}
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}]);
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return Helper;
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}();
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exports["default"] = Helper;
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},{"./denormalise":4,"./groupEntitiesByLayer":7,"./parseString":27,"./toPolylines":28,"./toSVG":29,"./util/logger":34}],2:[function(require,module,exports){
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = void 0;
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/**
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* Apply the transforms to the polyline.
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*
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* @param polyline the polyline
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* @param transform the transforms array
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* @returns the transformed polyline
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*/
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var _default = function _default(polyline, transforms) {
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transforms.forEach(function (transform) {
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polyline = polyline.map(function (p) {
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// Use a copy to avoid side effects
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var p2 = [p[0], p[1]];
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if (transform.scaleX) {
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p2[0] = p2[0] * transform.scaleX;
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}
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if (transform.scaleY) {
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p2[1] = p2[1] * transform.scaleY;
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}
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if (transform.rotation) {
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var angle = transform.rotation / 180 * Math.PI;
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p2 = [p2[0] * Math.cos(angle) - p2[1] * Math.sin(angle), p2[1] * Math.cos(angle) + p2[0] * Math.sin(angle)];
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}
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if (transform.x) {
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p2[0] = p2[0] + transform.x;
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}
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if (transform.y) {
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p2[1] = p2[1] + transform.y;
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} // Observed once in a sample DXF - some cad applications
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// use negative extruxion Z for flipping
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if (transform.extrusionZ === -1) {
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p2[0] = -p2[0];
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}
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return p2;
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});
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});
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return polyline;
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};
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exports["default"] = _default;
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},{}],3:[function(require,module,exports){
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = void 0;
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var _default = {
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verbose: false
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};
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exports["default"] = _default;
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},{}],4:[function(require,module,exports){
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = void 0;
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var _lodash = require("lodash");
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var _logger = _interopRequireDefault(require("./util/logger"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
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function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
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var _default = function _default(parseResult) {
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var blocksByName = parseResult.blocks.reduce(function (acc, b) {
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acc[b.name] = b;
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return acc;
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}, {});
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var gatherEntities = function gatherEntities(entities, transforms) {
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var current = [];
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entities.forEach(function (e) {
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if (e.type === 'INSERT') {
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var _ret = function () {
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var _insert$rowCount, _insert$columnCount, _insert$rowSpacing, _insert$columnSpacing, _insert$rotation;
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var insert = e;
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var block = blocksByName[insert.block];
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if (!block) {
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_logger["default"].error('no block found for insert. block:', insert.block);
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return {
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v: void 0
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};
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}
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var rowCount = (_insert$rowCount = insert.rowCount) !== null && _insert$rowCount !== void 0 ? _insert$rowCount : 1;
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var columnCount = (_insert$columnCount = insert.columnCount) !== null && _insert$columnCount !== void 0 ? _insert$columnCount : 1;
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var rowSpacing = (_insert$rowSpacing = insert.rowSpacing) !== null && _insert$rowSpacing !== void 0 ? _insert$rowSpacing : 0;
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var columnSpacing = (_insert$columnSpacing = insert.columnSpacing) !== null && _insert$columnSpacing !== void 0 ? _insert$columnSpacing : 0;
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var rotation = (_insert$rotation = insert.rotation) !== null && _insert$rotation !== void 0 ? _insert$rotation : 0; // It appears that the rectangular array is affected by rotation, but NOT by scale.
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var rowVec, colVec;
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if (rowCount > 1 || columnCount > 1) {
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var cos = Math.cos(rotation * Math.PI / 180);
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var sin = Math.sin(rotation * Math.PI / 180);
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rowVec = {
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x: -sin * rowSpacing,
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y: cos * rowSpacing
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};
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colVec = {
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x: cos * columnSpacing,
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y: sin * columnSpacing
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};
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} else {
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rowVec = {
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x: 0,
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y: 0
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};
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colVec = {
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x: 0,
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y: 0
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};
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} // For rectangular arrays, add the block entities for each location in the array
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for (var r = 0; r < rowCount; r++) {
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for (var c = 0; c < columnCount; c++) {
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// Adjust insert transform by row and column for rectangular arrays
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var t = {
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x: insert.x + rowVec.x * r + colVec.x * c,
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y: insert.y + rowVec.y * r + colVec.y * c,
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scaleX: insert.scaleX,
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scaleY: insert.scaleY,
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scaleZ: insert.scaleZ,
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extrusionX: insert.extrusionX,
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extrusionY: insert.extrusionY,
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extrusionZ: insert.extrusionZ,
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rotation: insert.rotation
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}; // Add the insert transform and recursively add entities
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var transforms2 = transforms.slice(0);
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transforms2.push(t); // Use the insert layer
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var blockEntities = block.entities.map(function (be) {
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var be2 = (0, _lodash.cloneDeep)(be);
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be2.layer = insert.layer; // https://github.com/bjnortier/dxf/issues/52
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// See Issue 52. If we don't modify the
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// entity coordinates here it creates an issue with the
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// transformation matrices (which are only applied AFTER
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// block insertion modifications has been applied).
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switch (be2.type) {
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case 'LINE':
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{
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be2.start.x -= block.x;
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be2.start.y -= block.y;
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be2.end.x -= block.x;
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be2.end.y -= block.y;
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break;
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}
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case 'LWPOLYLINE':
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case 'POLYLINE':
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{
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be2.vertices.forEach(function (v) {
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v.x -= block.x;
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v.y -= block.y;
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});
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break;
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}
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case 'CIRCLE':
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case 'ELLIPSE':
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case 'ARC':
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{
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be2.x -= block.x;
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be2.y -= block.y;
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break;
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}
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case 'SPLINE':
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{
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be2.controlPoints.forEach(function (cp) {
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cp.x -= block.x;
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cp.y -= block.y;
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});
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break;
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}
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}
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return be2;
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});
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current = current.concat(gatherEntities(blockEntities, transforms2));
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}
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}
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}();
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if (_typeof(_ret) === "object") return _ret.v;
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} else {
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// Top-level entity. Clone and add the transforms
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// The transforms are reversed so they occur in
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// order of application - i.e. the transform of the
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// top-level insert is applied last
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var e2 = (0, _lodash.cloneDeep)(e);
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e2.transforms = transforms.slice().reverse();
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current.push(e2);
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}
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});
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return current;
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};
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return gatherEntities(parseResult.entities, []);
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};
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exports["default"] = _default;
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},{"./util/logger":34,"lodash":39}],5:[function(require,module,exports){
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = exports.interpolateBSpline = void 0;
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var _bSpline = _interopRequireDefault(require("./util/bSpline"));
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var _logger = _interopRequireDefault(require("./util/logger"));
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var _createArcForLWPolyline = _interopRequireDefault(require("./util/createArcForLWPolyline"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
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/**
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* Rotate a set of points.
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*
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* @param points the points
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* @param angle the rotation angle
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*/
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var rotate = function rotate(points, angle) {
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return points.map(function (p) {
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return [p[0] * Math.cos(angle) - p[1] * Math.sin(angle), p[1] * Math.cos(angle) + p[0] * Math.sin(angle)];
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});
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};
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/**
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* Interpolate an ellipse
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* @param cx center X
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* @param cy center Y
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* @param rx radius X
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* @param ry radius Y
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* @param start start angle in radians
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* @param start end angle in radians
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*/
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var interpolateEllipse = function interpolateEllipse(cx, cy, rx, ry, start, end, rotationAngle) {
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if (end < start) {
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end += Math.PI * 2;
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} // ----- Relative points -----
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// Start point
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var points = [];
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var dTheta = Math.PI * 2 / 72;
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var EPS = 1e-6;
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for (var theta = start; theta < end - EPS; theta += dTheta) {
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points.push([Math.cos(theta) * rx, Math.sin(theta) * ry]);
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}
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points.push([Math.cos(end) * rx, Math.sin(end) * ry]); // ----- Rotate -----
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if (rotationAngle) {
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points = rotate(points, rotationAngle);
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} // ----- Offset center -----
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points = points.map(function (p) {
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return [cx + p[0], cy + p[1]];
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});
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return points;
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};
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/**
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* Interpolate a b-spline. The algorithm examins the knot vector
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* to create segments for interpolation. The parameterisation value
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* is re-normalised back to [0,1] as that is what the lib expects (
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* and t i de-normalised in the b-spline library)
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*
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* @param controlPoints the control points
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* @param degree the b-spline degree
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* @param knots the knot vector
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* @returns the polyline
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*/
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var interpolateBSpline = function interpolateBSpline(controlPoints, degree, knots, interpolationsPerSplineSegment) {
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var polyline = [];
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var controlPointsForLib = controlPoints.map(function (p) {
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return [p.x, p.y];
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});
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var segmentTs = [knots[degree]];
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var domain = [knots[degree], knots[knots.length - 1 - degree]];
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for (var k = degree + 1; k < knots.length - degree; ++k) {
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if (segmentTs[segmentTs.length - 1] !== knots[k]) {
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segmentTs.push(knots[k]);
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}
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}
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interpolationsPerSplineSegment = interpolationsPerSplineSegment || 25;
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|
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for (var i = 1; i < segmentTs.length; ++i) {
|
|
var uMin = segmentTs[i - 1];
|
|
var uMax = segmentTs[i];
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|
|
|
for (var _k = 0; _k <= interpolationsPerSplineSegment; ++_k) {
|
|
var u = _k / interpolationsPerSplineSegment * (uMax - uMin) + uMin; // Clamp t to 0, 1 to handle numerical precision issues
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|
|
|
var t = (u - domain[0]) / (domain[1] - domain[0]);
|
|
t = Math.max(t, 0);
|
|
t = Math.min(t, 1);
|
|
var p = (0, _bSpline["default"])(t, degree, controlPointsForLib, knots);
|
|
polyline.push(p);
|
|
}
|
|
}
|
|
|
|
return polyline;
|
|
};
|
|
/**
|
|
* Convert a parsed DXF entity to a polyline. These can be used to render the
|
|
* the DXF in SVG, Canvas, WebGL etc., without depending on native support
|
|
* of primitive objects (ellispe, spline etc.)
|
|
*/
|
|
|
|
|
|
exports.interpolateBSpline = interpolateBSpline;
|
|
|
|
var _default = function _default(entity, options) {
|
|
options = options || {};
|
|
var polyline;
|
|
|
|
if (entity.type === 'LINE') {
|
|
polyline = [[entity.start.x, entity.start.y], [entity.end.x, entity.end.y]];
|
|
}
|
|
|
|
if (entity.type === 'LWPOLYLINE' || entity.type === 'POLYLINE') {
|
|
polyline = [];
|
|
|
|
if (entity.polygonMesh || entity.polyfaceMesh) {// Do not attempt to render meshes
|
|
} else if (entity.vertices.length) {
|
|
if (entity.closed) {
|
|
entity.vertices = entity.vertices.concat(entity.vertices[0]);
|
|
}
|
|
|
|
for (var i = 0, il = entity.vertices.length; i < il - 1; ++i) {
|
|
var from = [entity.vertices[i].x, entity.vertices[i].y];
|
|
var to = [entity.vertices[i + 1].x, entity.vertices[i + 1].y];
|
|
polyline.push(from);
|
|
|
|
if (entity.vertices[i].bulge) {
|
|
polyline = polyline.concat((0, _createArcForLWPolyline["default"])(from, to, entity.vertices[i].bulge));
|
|
} // The last iteration of the for loop
|
|
|
|
|
|
if (i === il - 2) {
|
|
polyline.push(to);
|
|
}
|
|
}
|
|
} else {
|
|
_logger["default"].warn('Polyline entity with no vertices');
|
|
}
|
|
}
|
|
|
|
if (entity.type === 'CIRCLE') {
|
|
polyline = interpolateEllipse(entity.x, entity.y, entity.r, entity.r, 0, Math.PI * 2);
|
|
|
|
if (entity.extrusionZ === -1) {
|
|
polyline = polyline.map(function (p) {
|
|
return [-p[0], p[1]];
|
|
});
|
|
}
|
|
}
|
|
|
|
if (entity.type === 'ELLIPSE') {
|
|
var rx = Math.sqrt(entity.majorX * entity.majorX + entity.majorY * entity.majorY);
|
|
var ry = entity.axisRatio * rx;
|
|
var majorAxisRotation = -Math.atan2(-entity.majorY, entity.majorX);
|
|
polyline = interpolateEllipse(entity.x, entity.y, rx, ry, entity.startAngle, entity.endAngle, majorAxisRotation);
|
|
|
|
if (entity.extrusionZ === -1) {
|
|
polyline = polyline.map(function (p) {
|
|
return [-p[0], p[1]];
|
|
});
|
|
}
|
|
}
|
|
|
|
if (entity.type === 'ARC') {
|
|
// Why on earth DXF has degree start & end angles for arc,
|
|
// and radian start & end angles for ellipses is a mystery
|
|
polyline = interpolateEllipse(entity.x, entity.y, entity.r, entity.r, entity.startAngle, entity.endAngle, undefined, false); // I kid you not, ARCs and ELLIPSEs handle this differently,
|
|
// as evidenced by how AutoCAD actually renders these entities
|
|
|
|
if (entity.extrusionZ === -1) {
|
|
polyline = polyline.map(function (p) {
|
|
return [-p[0], p[1]];
|
|
});
|
|
}
|
|
}
|
|
|
|
if (entity.type === 'SPLINE') {
|
|
polyline = interpolateBSpline(entity.controlPoints, entity.degree, entity.knots, options.interpolationsPerSplineSegment);
|
|
}
|
|
|
|
if (!polyline) {
|
|
_logger["default"].warn('unsupported entity for converting to polyline:', entity.type);
|
|
|
|
return [];
|
|
}
|
|
|
|
return polyline;
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"./util/bSpline":30,"./util/createArcForLWPolyline":32,"./util/logger":34}],6:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _colors = _interopRequireDefault(require("./util/colors"));
|
|
|
|
var _logger = _interopRequireDefault(require("./util/logger"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var _default = function _default(layers, entity) {
|
|
var layerTable = layers[entity.layer];
|
|
|
|
if (layerTable) {
|
|
var colorNumber = 'colorNumber' in entity ? entity.colorNumber : layerTable.colorNumber;
|
|
var rgb = _colors["default"][colorNumber];
|
|
|
|
if (rgb) {
|
|
return rgb;
|
|
} else {
|
|
_logger["default"].warn('Color index', colorNumber, 'invalid, defaulting to black');
|
|
|
|
return [0, 0, 0];
|
|
}
|
|
} else {
|
|
_logger["default"].warn('no layer table for layer:' + entity.layer);
|
|
|
|
return [0, 0, 0];
|
|
}
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"./util/colors":31,"./util/logger":34}],7:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _default = function _default(entities) {
|
|
return entities.reduce(function (acc, entity) {
|
|
var layer = entity.layer;
|
|
|
|
if (!acc[layer]) {
|
|
acc[layer] = [];
|
|
}
|
|
|
|
acc[layer].push(entity);
|
|
return acc;
|
|
}, {});
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{}],8:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _entities = _interopRequireDefault(require("./entities"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var _default = function _default(tuples) {
|
|
var state;
|
|
var blocks = [];
|
|
var block;
|
|
var entitiesTuples = [];
|
|
tuples.forEach(function (tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
if (value === 'BLOCK') {
|
|
state = 'block';
|
|
block = {};
|
|
entitiesTuples = [];
|
|
blocks.push(block);
|
|
} else if (value === 'ENDBLK') {
|
|
if (state === 'entities') {
|
|
block.entities = (0, _entities["default"])(entitiesTuples);
|
|
} else {
|
|
block.entities = [];
|
|
}
|
|
|
|
entitiesTuples = undefined;
|
|
state = undefined;
|
|
} else if (state === 'block' && type !== 0) {
|
|
switch (type) {
|
|
case 1:
|
|
block.xref = value;
|
|
break;
|
|
|
|
case 2:
|
|
block.name = value;
|
|
break;
|
|
|
|
case 10:
|
|
block.x = value;
|
|
break;
|
|
|
|
case 20:
|
|
block.y = value;
|
|
break;
|
|
|
|
case 30:
|
|
block.z = value;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
} else if (state === 'block' && type === 0) {
|
|
state = 'entities';
|
|
entitiesTuples.push(tuple);
|
|
} else if (state === 'entities') {
|
|
entitiesTuples.push(tuple);
|
|
}
|
|
});
|
|
return blocks;
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"./entities":9}],9:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _logger = _interopRequireDefault(require("../util/logger"));
|
|
|
|
var _point = _interopRequireDefault(require("./entity/point"));
|
|
|
|
var _line = _interopRequireDefault(require("./entity/line"));
|
|
|
|
var _lwpolyline = _interopRequireDefault(require("./entity/lwpolyline"));
|
|
|
|
var _polyline = _interopRequireDefault(require("./entity/polyline"));
|
|
|
|
var _vertex = _interopRequireDefault(require("./entity/vertex"));
|
|
|
|
var _circle = _interopRequireDefault(require("./entity/circle"));
|
|
|
|
var _arc = _interopRequireDefault(require("./entity/arc"));
|
|
|
|
var _ellipse = _interopRequireDefault(require("./entity/ellipse"));
|
|
|
|
var _spline = _interopRequireDefault(require("./entity/spline"));
|
|
|
|
var _solid = _interopRequireDefault(require("./entity/solid"));
|
|
|
|
var _mtext = _interopRequireDefault(require("./entity/mtext"));
|
|
|
|
var _insert = _interopRequireDefault(require("./entity/insert"));
|
|
|
|
var _threeDFace = _interopRequireDefault(require("./entity/threeDFace"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var handlers = [_point["default"], _line["default"], _lwpolyline["default"], _polyline["default"], _vertex["default"], _circle["default"], _arc["default"], _ellipse["default"], _spline["default"], _solid["default"], _mtext["default"], _insert["default"], _threeDFace["default"]].reduce(function (acc, mod) {
|
|
acc[mod.TYPE] = mod;
|
|
return acc;
|
|
}, {});
|
|
|
|
var _default = function _default(tuples) {
|
|
var entities = [];
|
|
var entityGroups = [];
|
|
var currentEntityTuples; // First group them together for easy processing
|
|
|
|
tuples.forEach(function (tuple) {
|
|
var type = tuple[0];
|
|
|
|
if (type === 0) {
|
|
currentEntityTuples = [];
|
|
entityGroups.push(currentEntityTuples);
|
|
}
|
|
|
|
currentEntityTuples.push(tuple);
|
|
});
|
|
var currentPolyline;
|
|
entityGroups.forEach(function (tuples) {
|
|
var entityType = tuples[0][1];
|
|
var contentTuples = tuples.slice(1);
|
|
|
|
if (handlers[entityType] !== undefined) {
|
|
var e = handlers[entityType].process(contentTuples); // "POLYLINE" cannot be parsed in isolation, it is followed by
|
|
// N "VERTEX" entities and ended with a "SEQEND" entity.
|
|
// Essentially we convert POLYLINE to LWPOLYLINE - the extra
|
|
// vertex flags are not supported
|
|
|
|
if (entityType === 'POLYLINE') {
|
|
currentPolyline = e;
|
|
entities.push(e);
|
|
} else if (entityType === 'VERTEX') {
|
|
if (currentPolyline) {
|
|
currentPolyline.vertices.push(e);
|
|
} else {
|
|
_logger["default"].error('ignoring invalid VERTEX entity');
|
|
}
|
|
} else if (entityType === 'SEQEND') {
|
|
currentPolyline = undefined;
|
|
} else {
|
|
// All other entities
|
|
entities.push(e);
|
|
}
|
|
} else {
|
|
_logger["default"].warn('unsupported type in ENTITIES section:', entityType);
|
|
}
|
|
});
|
|
return entities;
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"../util/logger":34,"./entity/arc":10,"./entity/circle":11,"./entity/ellipse":13,"./entity/insert":14,"./entity/line":15,"./entity/lwpolyline":16,"./entity/mtext":17,"./entity/point":18,"./entity/polyline":19,"./entity/solid":20,"./entity/spline":21,"./entity/threeDFace":22,"./entity/vertex":23}],10:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'ARC';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
entity.x = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.y = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.z = value;
|
|
break;
|
|
|
|
case 39:
|
|
entity.thickness = value;
|
|
break;
|
|
|
|
case 40:
|
|
entity.r = value;
|
|
break;
|
|
|
|
case 50:
|
|
// *Someone* decided that ELLIPSE angles are in radians but
|
|
// ARC angles are in degrees
|
|
entity.startAngle = value / 180 * Math.PI;
|
|
break;
|
|
|
|
case 51:
|
|
entity.endAngle = value / 180 * Math.PI;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],11:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'CIRCLE';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
entity.x = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.y = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.z = value;
|
|
break;
|
|
|
|
case 40:
|
|
entity.r = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],12:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _default = function _default(type, value) {
|
|
switch (type) {
|
|
case 6:
|
|
// Linetype name (present if not BYLAYER).
|
|
// The special name BYBLOCK indicates a
|
|
// floating linetype. (optional)
|
|
return {
|
|
lineTypeName: value
|
|
};
|
|
|
|
case 8:
|
|
return {
|
|
layer: value
|
|
};
|
|
|
|
case 48:
|
|
// Linetype scale (optional)
|
|
return {
|
|
lineTypeScale: value
|
|
};
|
|
|
|
case 60:
|
|
// Object visibility (optional): 0 = visible, 1 = invisible.
|
|
return {
|
|
visible: value === 0
|
|
};
|
|
|
|
case 62:
|
|
// Color number (present if not BYLAYER).
|
|
// Zero indicates the BYBLOCK (floating) color.
|
|
// 256 indicates BYLAYER.
|
|
// A negative value indicates that the layer is turned off. (optional)
|
|
return {
|
|
colorNumber: value
|
|
};
|
|
|
|
case 210:
|
|
return {
|
|
extrusionX: value
|
|
};
|
|
|
|
case 220:
|
|
return {
|
|
extrusionY: value
|
|
};
|
|
|
|
case 230:
|
|
return {
|
|
extrusionZ: value
|
|
};
|
|
|
|
default:
|
|
return {};
|
|
}
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{}],13:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'ELLIPSE';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
entity.x = value;
|
|
break;
|
|
|
|
case 11:
|
|
entity.majorX = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.y = value;
|
|
break;
|
|
|
|
case 21:
|
|
entity.majorY = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.z = value;
|
|
break;
|
|
|
|
case 31:
|
|
entity.majorZ = value;
|
|
break;
|
|
|
|
case 40:
|
|
entity.axisRatio = value;
|
|
break;
|
|
|
|
case 41:
|
|
entity.startAngle = value;
|
|
break;
|
|
|
|
case 42:
|
|
entity.endAngle = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],14:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'INSERT';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 2:
|
|
entity.block = value;
|
|
break;
|
|
|
|
case 10:
|
|
entity.x = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.y = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.z = value;
|
|
break;
|
|
|
|
case 41:
|
|
entity.scaleX = value;
|
|
break;
|
|
|
|
case 42:
|
|
entity.scaleY = value;
|
|
break;
|
|
|
|
case 43:
|
|
entity.scaleZ = value;
|
|
break;
|
|
|
|
case 44:
|
|
entity.columnSpacing = value;
|
|
break;
|
|
|
|
case 45:
|
|
entity.rowSpacing = value;
|
|
break;
|
|
|
|
case 50:
|
|
entity.rotation = value;
|
|
break;
|
|
|
|
case 70:
|
|
entity.columnCount = value;
|
|
break;
|
|
|
|
case 71:
|
|
entity.rowCount = value;
|
|
break;
|
|
|
|
case 210:
|
|
entity.extrusionX = value;
|
|
break;
|
|
|
|
case 220:
|
|
entity.extrusionY = value;
|
|
break;
|
|
|
|
case 230:
|
|
entity.extrusionZ = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],15:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'LINE';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
entity.start.x = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.start.y = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.start.z = value;
|
|
break;
|
|
|
|
case 39:
|
|
entity.thickness = value;
|
|
break;
|
|
|
|
case 11:
|
|
entity.end.x = value;
|
|
break;
|
|
|
|
case 21:
|
|
entity.end.y = value;
|
|
break;
|
|
|
|
case 31:
|
|
entity.end.z = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE,
|
|
start: {},
|
|
end: {}
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],16:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'LWPOLYLINE';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
var vertex;
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 70:
|
|
entity.closed = (value & 1) === 1;
|
|
break;
|
|
|
|
case 10:
|
|
vertex = {
|
|
x: value,
|
|
y: 0
|
|
};
|
|
entity.vertices.push(vertex);
|
|
break;
|
|
|
|
case 20:
|
|
vertex.y = value;
|
|
break;
|
|
|
|
case 39:
|
|
entity.thickness = value;
|
|
break;
|
|
|
|
case 42:
|
|
// Bulge (multiple entries; one entry for each vertex) (optional; default = 0).
|
|
vertex.bulge = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE,
|
|
vertices: []
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],17:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'MTEXT';
|
|
exports.TYPE = TYPE;
|
|
var simpleCodes = {
|
|
10: 'x',
|
|
20: 'y',
|
|
30: 'z',
|
|
40: 'nominalTextHeight',
|
|
41: 'refRectangleWidth',
|
|
71: 'attachmentPoint',
|
|
72: 'drawingDirection',
|
|
7: 'styleName',
|
|
11: 'xAxisX',
|
|
21: 'xAxisY',
|
|
31: 'xAxisZ',
|
|
42: 'horizontalWidth',
|
|
43: 'verticalHeight',
|
|
73: 'lineSpacingStyle',
|
|
44: 'lineSpacingFactor',
|
|
90: 'backgroundFill',
|
|
420: 'bgColorRGB0',
|
|
421: 'bgColorRGB1',
|
|
422: 'bgColorRGB2',
|
|
423: 'bgColorRGB3',
|
|
424: 'bgColorRGB4',
|
|
425: 'bgColorRGB5',
|
|
426: 'bgColorRGB6',
|
|
427: 'bgColorRGB7',
|
|
428: 'bgColorRGB8',
|
|
429: 'bgColorRGB9',
|
|
430: 'bgColorName0',
|
|
431: 'bgColorName1',
|
|
432: 'bgColorName2',
|
|
433: 'bgColorName3',
|
|
434: 'bgColorName4',
|
|
435: 'bgColorName5',
|
|
436: 'bgColorName6',
|
|
437: 'bgColorName7',
|
|
438: 'bgColorName8',
|
|
439: 'bgColorName9',
|
|
45: 'fillBoxStyle',
|
|
63: 'bgFillColor',
|
|
441: 'bgFillTransparency',
|
|
75: 'columnType',
|
|
76: 'columnCount',
|
|
78: 'columnFlowReversed',
|
|
79: 'columnAutoheight',
|
|
48: 'columnWidth',
|
|
49: 'columnGutter',
|
|
50: 'columnHeights'
|
|
};
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
if (simpleCodes[type] !== undefined) {
|
|
entity[simpleCodes[type]] = value;
|
|
} else if (type === 1 || type === 3) {
|
|
entity.string += value;
|
|
} else if (type === 50) {
|
|
// Rotation angle in radians
|
|
entity.xAxisX = Math.cos(value);
|
|
entity.xAxisY = Math.sin(value);
|
|
} else {
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE,
|
|
string: ''
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],18:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'POINT';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
entity.x = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.y = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.z = value;
|
|
break;
|
|
|
|
case 39:
|
|
entity.thickness = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],19:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'POLYLINE';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 70:
|
|
entity.closed = (value & 1) === 1;
|
|
entity.polygonMesh = (value & 16) === 16;
|
|
entity.polyfaceMesh = (value & 64) === 64;
|
|
break;
|
|
|
|
case 39:
|
|
entity.thickness = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE,
|
|
vertices: []
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],20:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'SOLID';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
entity.corners[0].x = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.corners[0].y = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.corners[0].z = value;
|
|
break;
|
|
|
|
case 11:
|
|
entity.corners[1].x = value;
|
|
break;
|
|
|
|
case 21:
|
|
entity.corners[1].y = value;
|
|
break;
|
|
|
|
case 31:
|
|
entity.corners[1].z = value;
|
|
break;
|
|
|
|
case 12:
|
|
entity.corners[2].x = value;
|
|
break;
|
|
|
|
case 22:
|
|
entity.corners[2].y = value;
|
|
break;
|
|
|
|
case 32:
|
|
entity.corners[2].z = value;
|
|
break;
|
|
|
|
case 13:
|
|
entity.corners[3].x = value;
|
|
break;
|
|
|
|
case 23:
|
|
entity.corners[3].y = value;
|
|
break;
|
|
|
|
case 33:
|
|
entity.corners[3].z = value;
|
|
break;
|
|
|
|
case 39:
|
|
entity.thickness = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE,
|
|
corners: [{}, {}, {}, {}]
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],21:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = 'SPLINE';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
var controlPoint;
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
controlPoint = {
|
|
x: value,
|
|
y: 0
|
|
};
|
|
entity.controlPoints.push(controlPoint);
|
|
break;
|
|
|
|
case 20:
|
|
controlPoint.y = value;
|
|
break;
|
|
|
|
case 30:
|
|
controlPoint.z = value;
|
|
break;
|
|
|
|
case 40:
|
|
entity.knots.push(value);
|
|
break;
|
|
|
|
case 42:
|
|
entity.knotTolerance = value;
|
|
break;
|
|
|
|
case 43:
|
|
entity.controlPointTolerance = value;
|
|
break;
|
|
|
|
case 44:
|
|
entity.fitTolerance = value;
|
|
break;
|
|
|
|
case 70:
|
|
// Spline flag (bit coded):
|
|
// 1 = Closed spline
|
|
// 2 = Periodic spline
|
|
// 4 = Rational spline
|
|
// 8 = Planar
|
|
// 16 = Linear (planar bit is also set)
|
|
entity.flag = value;
|
|
entity.closed = (value & 1) === 1;
|
|
break;
|
|
|
|
case 71:
|
|
entity.degree = value;
|
|
break;
|
|
|
|
case 72:
|
|
entity.numberOfKnots = value;
|
|
break;
|
|
|
|
case 73:
|
|
entity.numberOfControlPoints = value;
|
|
break;
|
|
|
|
case 74:
|
|
entity.numberOfFitPoints = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE,
|
|
controlPoints: [],
|
|
knots: []
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],22:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
|
|
var _common = _interopRequireDefault(require("./common"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var TYPE = '3DFACE';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
entity.vertices[0].x = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.vertices[0].y = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.vertices[0].z = value;
|
|
break;
|
|
|
|
case 11:
|
|
entity.vertices[1].x = value;
|
|
break;
|
|
|
|
case 21:
|
|
entity.vertices[1].y = value;
|
|
break;
|
|
|
|
case 31:
|
|
entity.vertices[1].z = value;
|
|
break;
|
|
|
|
case 12:
|
|
entity.vertices[2].x = value;
|
|
break;
|
|
|
|
case 22:
|
|
entity.vertices[2].y = value;
|
|
break;
|
|
|
|
case 32:
|
|
entity.vertices[2].z = value;
|
|
break;
|
|
|
|
case 13:
|
|
entity.vertices[3].x = value;
|
|
break;
|
|
|
|
case 23:
|
|
entity.vertices[3].y = value;
|
|
break;
|
|
|
|
case 33:
|
|
entity.vertices[3].z = value;
|
|
break;
|
|
|
|
default:
|
|
Object.assign(entity, (0, _common["default"])(type, value));
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {
|
|
type: TYPE,
|
|
vertices: [{}, {}, {}, {}]
|
|
});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./common":12}],23:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.process = exports.TYPE = void 0;
|
|
var TYPE = 'VERTEX';
|
|
exports.TYPE = TYPE;
|
|
|
|
var process = function process(tuples) {
|
|
return tuples.reduce(function (entity, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 10:
|
|
entity.x = value;
|
|
break;
|
|
|
|
case 20:
|
|
entity.y = value;
|
|
break;
|
|
|
|
case 30:
|
|
entity.z = value;
|
|
break;
|
|
|
|
case 42:
|
|
entity.bulge = value;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return entity;
|
|
}, {});
|
|
};
|
|
|
|
exports.process = process;
|
|
var _default = {
|
|
TYPE: TYPE,
|
|
process: process
|
|
};
|
|
exports["default"] = _default;
|
|
},{}],24:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _default = function _default(tuples) {
|
|
var state;
|
|
var header = {};
|
|
tuples.forEach(function (tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (value) {
|
|
case '$MEASUREMENT':
|
|
{
|
|
state = 'measurement';
|
|
break;
|
|
}
|
|
|
|
case '$INSUNITS':
|
|
{
|
|
state = 'insUnits';
|
|
break;
|
|
}
|
|
|
|
case '$EXTMIN':
|
|
header.extMin = {};
|
|
state = 'extMin';
|
|
break;
|
|
|
|
case '$EXTMAX':
|
|
header.extMax = {};
|
|
state = 'extMax';
|
|
break;
|
|
|
|
default:
|
|
switch (state) {
|
|
case 'extMin':
|
|
case 'extMax':
|
|
{
|
|
switch (type) {
|
|
case 10:
|
|
header[state].x = value;
|
|
break;
|
|
|
|
case 20:
|
|
header[state].y = value;
|
|
break;
|
|
|
|
case 30:
|
|
header[state].z = value;
|
|
state = undefined;
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case 'measurement':
|
|
case 'insUnits':
|
|
{
|
|
switch (type) {
|
|
case 70:
|
|
{
|
|
header[state] = value;
|
|
state = undefined;
|
|
break;
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
});
|
|
return header;
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{}],25:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _logger = _interopRequireDefault(require("../util/logger"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var layerHandler = function layerHandler(tuples) {
|
|
return tuples.reduce(function (layer, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1]; // https://www.autodesk.com/techpubs/autocad/acad2000/dxf/layer_dxf_04.htm
|
|
|
|
switch (type) {
|
|
case 2:
|
|
layer.name = value;
|
|
break;
|
|
|
|
case 6:
|
|
layer.lineTypeName = value;
|
|
break;
|
|
|
|
case 62:
|
|
layer.colorNumber = value;
|
|
break;
|
|
|
|
case 70:
|
|
layer.flags = value;
|
|
break;
|
|
|
|
case 290:
|
|
layer.plot = parseInt(value) !== 0;
|
|
break;
|
|
|
|
case 370:
|
|
layer.lineWeightEnum = value;
|
|
break;
|
|
|
|
default:
|
|
}
|
|
|
|
return layer;
|
|
}, {
|
|
type: 'LAYER'
|
|
});
|
|
};
|
|
|
|
var styleHandler = function styleHandler(tuples) {
|
|
return tuples.reduce(function (style, tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
switch (type) {
|
|
case 2:
|
|
style.name = value;
|
|
break;
|
|
|
|
case 6:
|
|
style.lineTypeName = value;
|
|
break;
|
|
|
|
case 40:
|
|
style.fixedTextHeight = value;
|
|
break;
|
|
|
|
case 41:
|
|
style.widthFactor = value;
|
|
break;
|
|
|
|
case 50:
|
|
style.obliqueAngle = value;
|
|
break;
|
|
|
|
case 71:
|
|
style.flags = value;
|
|
break;
|
|
|
|
case 42:
|
|
style.lastHeightUsed = value;
|
|
break;
|
|
|
|
case 3:
|
|
style.primaryFontFileName = value;
|
|
break;
|
|
|
|
case 4:
|
|
style.bigFontFileName = value;
|
|
break;
|
|
|
|
default:
|
|
}
|
|
|
|
return style;
|
|
}, {
|
|
type: 'STYLE'
|
|
});
|
|
};
|
|
|
|
var tableHandler = function tableHandler(tuples, tableType, handler) {
|
|
var tableRowsTuples = [];
|
|
var tableRowTuples;
|
|
tuples.forEach(function (tuple) {
|
|
var type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
if ((type === 0 || type === 2) && value === tableType) {
|
|
tableRowTuples = [];
|
|
tableRowsTuples.push(tableRowTuples);
|
|
} else {
|
|
tableRowTuples.push(tuple);
|
|
}
|
|
});
|
|
return tableRowsTuples.reduce(function (acc, rowTuples) {
|
|
var tableRow = handler(rowTuples);
|
|
|
|
if (tableRow.name) {
|
|
acc[tableRow.name] = tableRow;
|
|
} else {
|
|
_logger["default"].warn('table row without name:', tableRow);
|
|
}
|
|
|
|
return acc;
|
|
}, {});
|
|
};
|
|
|
|
var _default = function _default(tuples) {
|
|
var tableGroups = [];
|
|
var tableTuples;
|
|
tuples.forEach(function (tuple) {
|
|
// const type = tuple[0];
|
|
var value = tuple[1];
|
|
|
|
if (value === 'TABLE') {
|
|
tableTuples = [];
|
|
tableGroups.push(tableTuples);
|
|
} else if (value === 'ENDTAB') {
|
|
tableGroups.push(tableTuples);
|
|
} else {
|
|
tableTuples.push(tuple);
|
|
}
|
|
});
|
|
var stylesTuples = [];
|
|
var layersTuples = [];
|
|
tableGroups.forEach(function (group) {
|
|
if (group[0][1] === 'STYLE') {
|
|
stylesTuples = group;
|
|
} else if (group[0][1] === 'LTYPE') {
|
|
_logger["default"].warn('LTYPE in tables not supported');
|
|
} else if (group[0][1] === 'LAYER') {
|
|
layersTuples = group;
|
|
}
|
|
});
|
|
return {
|
|
layers: tableHandler(layersTuples, 'LAYER', layerHandler),
|
|
styles: tableHandler(stylesTuples, 'STYLE', styleHandler)
|
|
};
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"../util/logger":34}],26:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
Object.defineProperty(exports, "config", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _config["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "parseString", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _parseString["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "denormalise", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _denormalise["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "groupEntitiesByLayer", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _groupEntitiesByLayer["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "toPolylines", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _toPolylines["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "toSVG", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _toSVG["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "colors", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _colors["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "Helper", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _Helper["default"];
|
|
}
|
|
});
|
|
|
|
var _config = _interopRequireDefault(require("./config"));
|
|
|
|
var _parseString = _interopRequireDefault(require("./parseString"));
|
|
|
|
var _denormalise = _interopRequireDefault(require("./denormalise"));
|
|
|
|
var _groupEntitiesByLayer = _interopRequireDefault(require("./groupEntitiesByLayer"));
|
|
|
|
var _toPolylines = _interopRequireDefault(require("./toPolylines"));
|
|
|
|
var _toSVG = _interopRequireDefault(require("./toSVG"));
|
|
|
|
var _colors = _interopRequireDefault(require("./util/colors"));
|
|
|
|
var _Helper = _interopRequireDefault(require("./Helper"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
},{"./Helper":1,"./config":3,"./denormalise":4,"./groupEntitiesByLayer":7,"./parseString":27,"./toPolylines":28,"./toSVG":29,"./util/colors":31}],27:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _header = _interopRequireDefault(require("./handlers/header"));
|
|
|
|
var _tables = _interopRequireDefault(require("./handlers/tables"));
|
|
|
|
var _blocks = _interopRequireDefault(require("./handlers/blocks"));
|
|
|
|
var _entities = _interopRequireDefault(require("./handlers/entities"));
|
|
|
|
var _logger = _interopRequireDefault(require("./util/logger"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
|
|
|
|
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
|
|
|
|
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
|
|
|
|
// Parse the value into the native representation
|
|
var parseValue = function parseValue(type, value) {
|
|
if (type >= 10 && type < 60) {
|
|
return parseFloat(value, 10);
|
|
} else if (type >= 210 && type < 240) {
|
|
return parseFloat(value, 10);
|
|
} else if (type >= 60 && type < 100) {
|
|
return parseInt(value, 10);
|
|
} else {
|
|
return value;
|
|
}
|
|
}; // Content lines are alternate lines of type and value
|
|
|
|
|
|
var convertToTypesAndValues = function convertToTypesAndValues(contentLines) {
|
|
var state = 'type';
|
|
var type;
|
|
var typesAndValues = [];
|
|
|
|
var _iterator = _createForOfIteratorHelper(contentLines),
|
|
_step;
|
|
|
|
try {
|
|
for (_iterator.s(); !(_step = _iterator.n()).done;) {
|
|
var line = _step.value;
|
|
|
|
if (state === 'type') {
|
|
type = parseInt(line, 10);
|
|
state = 'value';
|
|
} else {
|
|
typesAndValues.push([type, parseValue(type, line)]);
|
|
state = 'type';
|
|
}
|
|
}
|
|
} catch (err) {
|
|
_iterator.e(err);
|
|
} finally {
|
|
_iterator.f();
|
|
}
|
|
|
|
return typesAndValues;
|
|
};
|
|
|
|
var separateSections = function separateSections(tuples) {
|
|
var sectionTuples;
|
|
return tuples.reduce(function (sections, tuple) {
|
|
if (tuple[0] === 0 && tuple[1] === 'SECTION') {
|
|
sectionTuples = [];
|
|
} else if (tuple[0] === 0 && tuple[1] === 'ENDSEC') {
|
|
sections.push(sectionTuples);
|
|
sectionTuples = undefined;
|
|
} else if (sectionTuples !== undefined) {
|
|
sectionTuples.push(tuple);
|
|
}
|
|
|
|
return sections;
|
|
}, []);
|
|
}; // Each section start with the type tuple, then proceeds
|
|
// with the contents of the section
|
|
|
|
|
|
var reduceSection = function reduceSection(acc, section) {
|
|
var sectionType = section[0][1];
|
|
var contentTuples = section.slice(1);
|
|
|
|
switch (sectionType) {
|
|
case 'HEADER':
|
|
acc.header = (0, _header["default"])(contentTuples);
|
|
break;
|
|
|
|
case 'TABLES':
|
|
acc.tables = (0, _tables["default"])(contentTuples);
|
|
break;
|
|
|
|
case 'BLOCKS':
|
|
acc.blocks = (0, _blocks["default"])(contentTuples);
|
|
break;
|
|
|
|
case 'ENTITIES':
|
|
acc.entities = (0, _entities["default"])(contentTuples);
|
|
break;
|
|
|
|
default:
|
|
_logger["default"].warn("Unsupported section: ".concat(sectionType));
|
|
|
|
}
|
|
|
|
return acc;
|
|
};
|
|
|
|
var _default = function _default(string) {
|
|
var lines = string.split(/\r\n|\r|\n/g);
|
|
var tuples = convertToTypesAndValues(lines);
|
|
var sections = separateSections(tuples);
|
|
var result = sections.reduce(reduceSection, {
|
|
// Start with empty defaults in the event of empty sections
|
|
header: {},
|
|
blocks: [],
|
|
entities: [],
|
|
tables: {
|
|
layers: {},
|
|
styles: {}
|
|
}
|
|
});
|
|
return result;
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"./handlers/blocks":8,"./handlers/entities":9,"./handlers/header":24,"./handlers/tables":25,"./util/logger":34}],28:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _vecks = require("vecks");
|
|
|
|
var _colors = _interopRequireDefault(require("./util/colors"));
|
|
|
|
var _denormalise = _interopRequireDefault(require("./denormalise"));
|
|
|
|
var _entityToPolyline = _interopRequireDefault(require("./entityToPolyline"));
|
|
|
|
var _applyTransforms = _interopRequireDefault(require("./applyTransforms"));
|
|
|
|
var _logger = _interopRequireDefault(require("./util/logger"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
var _default = function _default(parsed) {
|
|
var entities = (0, _denormalise["default"])(parsed);
|
|
var polylines = entities.map(function (entity) {
|
|
var layerTable = parsed.tables.layers[entity.layer];
|
|
var rgb;
|
|
|
|
if (layerTable) {
|
|
var colorNumber = 'colorNumber' in entity ? entity.colorNumber : layerTable.colorNumber;
|
|
rgb = _colors["default"][colorNumber];
|
|
|
|
if (rgb === undefined) {
|
|
_logger["default"].warn('Color index', colorNumber, 'invalid, defaulting to black');
|
|
|
|
rgb = [0, 0, 0];
|
|
}
|
|
} else {
|
|
_logger["default"].warn('no layer table for layer:' + entity.layer);
|
|
|
|
rgb = [0, 0, 0];
|
|
}
|
|
|
|
return {
|
|
rgb: rgb,
|
|
vertices: (0, _applyTransforms["default"])((0, _entityToPolyline["default"])(entity), entity.transforms)
|
|
};
|
|
});
|
|
var bbox = new _vecks.Box2();
|
|
polylines.forEach(function (polyline) {
|
|
polyline.vertices.forEach(function (vertex) {
|
|
bbox.expandByPoint({
|
|
x: vertex[0],
|
|
y: vertex[1]
|
|
});
|
|
});
|
|
});
|
|
return {
|
|
bbox: bbox,
|
|
polylines: polylines
|
|
};
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"./applyTransforms":2,"./denormalise":4,"./entityToPolyline":5,"./util/colors":31,"./util/logger":34,"vecks":50}],29:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.piecewiseToPaths = void 0;
|
|
|
|
var _prettyData = require("pretty-data");
|
|
|
|
var _vecks = require("vecks");
|
|
|
|
var _entityToPolyline = _interopRequireDefault(require("./entityToPolyline"));
|
|
|
|
var _denormalise = _interopRequireDefault(require("./denormalise"));
|
|
|
|
var _getRGBForEntity = _interopRequireDefault(require("./getRGBForEntity"));
|
|
|
|
var _logger = _interopRequireDefault(require("./util/logger"));
|
|
|
|
var _rotate = _interopRequireDefault(require("./util/rotate"));
|
|
|
|
var _rgbToColorAttribute = _interopRequireDefault(require("./util/rgbToColorAttribute"));
|
|
|
|
var _toPiecewiseBezier = _interopRequireWildcard(require("./util/toPiecewiseBezier"));
|
|
|
|
var _transformBoundingBoxAndElement = _interopRequireDefault(require("./util/transformBoundingBoxAndElement"));
|
|
|
|
function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
|
|
|
|
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
|
|
|
|
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
|
|
|
|
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
|
|
|
|
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
|
|
|
|
function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
|
|
|
|
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
|
|
|
|
var addFlipXIfApplicable = function addFlipXIfApplicable(entity, _ref) {
|
|
var bbox = _ref.bbox,
|
|
element = _ref.element;
|
|
|
|
if (entity.extrusionZ === -1) {
|
|
return {
|
|
bbox: new _vecks.Box2().expandByPoint({
|
|
x: -bbox.min.x,
|
|
y: bbox.min.y
|
|
}).expandByPoint({
|
|
x: -bbox.max.x,
|
|
y: bbox.max.y
|
|
}),
|
|
element: "<g transform=\"matrix(-1 0 0 1 0 0)\">\n ".concat(element, "\n </g>")
|
|
};
|
|
} else {
|
|
return {
|
|
bbox: bbox,
|
|
element: element
|
|
};
|
|
}
|
|
};
|
|
/**
|
|
* Create a <path /> element. Interpolates curved entities.
|
|
*/
|
|
|
|
|
|
var polyline = function polyline(entity) {
|
|
var vertices = (0, _entityToPolyline["default"])(entity);
|
|
var bbox = vertices.reduce(function (acc, _ref2) {
|
|
var _ref3 = _slicedToArray(_ref2, 2),
|
|
x = _ref3[0],
|
|
y = _ref3[1];
|
|
|
|
return acc.expandByPoint({
|
|
x: x,
|
|
y: y
|
|
});
|
|
}, new _vecks.Box2());
|
|
var d = vertices.reduce(function (acc, point, i) {
|
|
acc += i === 0 ? 'M' : 'L';
|
|
acc += point[0] + ',' + point[1];
|
|
return acc;
|
|
}, ''); // Empirically it appears that flipping horzontally does not apply to polyline
|
|
|
|
return (0, _transformBoundingBoxAndElement["default"])(bbox, "<path d=\"".concat(d, "\" />"), entity.transforms);
|
|
};
|
|
/**
|
|
* Create a <circle /> element for the CIRCLE entity.
|
|
*/
|
|
|
|
|
|
var circle = function circle(entity) {
|
|
var bbox0 = new _vecks.Box2().expandByPoint({
|
|
x: entity.x + entity.r,
|
|
y: entity.y + entity.r
|
|
}).expandByPoint({
|
|
x: entity.x - entity.r,
|
|
y: entity.y - entity.r
|
|
});
|
|
var element0 = "<circle cx=\"".concat(entity.x, "\" cy=\"").concat(entity.y, "\" r=\"").concat(entity.r, "\" />");
|
|
|
|
var _addFlipXIfApplicable = addFlipXIfApplicable(entity, {
|
|
bbox: bbox0,
|
|
element: element0
|
|
}),
|
|
bbox = _addFlipXIfApplicable.bbox,
|
|
element = _addFlipXIfApplicable.element;
|
|
|
|
return (0, _transformBoundingBoxAndElement["default"])(bbox, element, entity.transforms);
|
|
};
|
|
/**
|
|
* Create a a <path d="A..." /> or <ellipse /> element for the ARC or ELLIPSE
|
|
* DXF entity (<ellipse /> if start and end point are the same).
|
|
*/
|
|
|
|
|
|
var ellipseOrArc = function ellipseOrArc(cx, cy, majorX, majorY, axisRatio, startAngle, endAngle, flipX) {
|
|
var rx = Math.sqrt(majorX * majorX + majorY * majorY);
|
|
var ry = axisRatio * rx;
|
|
var rotationAngle = -Math.atan2(-majorY, majorX);
|
|
var bbox = bboxEllipseOrArc(cx, cy, majorX, majorY, axisRatio, startAngle, endAngle, flipX);
|
|
|
|
if (Math.abs(startAngle - endAngle) < 1e-9 || Math.abs(startAngle - endAngle + Math.PI * 2) < 1e-9) {
|
|
// Use a native <ellipse> when start and end angles are the same, and
|
|
// arc paths with same start and end points don't render (at least on Safari)
|
|
var element = "<g transform=\"rotate(".concat(rotationAngle / Math.PI * 180, " ").concat(cx, ", ").concat(cy, ")\">\n <ellipse cx=\"").concat(cx, "\" cy=\"").concat(cy, "\" rx=\"").concat(rx, "\" ry=\"").concat(ry, "\" />\n </g>");
|
|
return {
|
|
bbox: bbox,
|
|
element: element
|
|
};
|
|
} else {
|
|
var startOffset = (0, _rotate["default"])({
|
|
x: Math.cos(startAngle) * rx,
|
|
y: Math.sin(startAngle) * ry
|
|
}, rotationAngle);
|
|
var startPoint = {
|
|
x: cx + startOffset.x,
|
|
y: cy + startOffset.y
|
|
};
|
|
var endOffset = (0, _rotate["default"])({
|
|
x: Math.cos(endAngle) * rx,
|
|
y: Math.sin(endAngle) * ry
|
|
}, rotationAngle);
|
|
var endPoint = {
|
|
x: cx + endOffset.x,
|
|
y: cy + endOffset.y
|
|
};
|
|
var adjustedEndAngle = endAngle < startAngle ? endAngle + Math.PI * 2 : endAngle;
|
|
var largeArcFlag = adjustedEndAngle - startAngle < Math.PI ? 0 : 1;
|
|
var d = "M ".concat(startPoint.x, " ").concat(startPoint.y, " A ").concat(rx, " ").concat(ry, " ").concat(rotationAngle / Math.PI * 180, " ").concat(largeArcFlag, " 1 ").concat(endPoint.x, " ").concat(endPoint.y);
|
|
|
|
var _element = "<path d=\"".concat(d, "\" />");
|
|
|
|
return {
|
|
bbox: bbox,
|
|
element: _element
|
|
};
|
|
}
|
|
};
|
|
/**
|
|
* Compute the bounding box of an elliptical arc, given the DXF entity parameters
|
|
*/
|
|
|
|
|
|
var bboxEllipseOrArc = function bboxEllipseOrArc(cx, cy, majorX, majorY, axisRatio, startAngle, endAngle, flipX) {
|
|
// The bounding box will be defined by the starting point of the ellipse, and ending point,
|
|
// and any extrema on the ellipse that are between startAngle and endAngle.
|
|
// The extrema are found by setting either the x or y component of the ellipse's
|
|
// tangent vector to zero and solving for the angle.
|
|
// Ensure start and end angles are > 0 and well-ordered
|
|
while (startAngle < 0) {
|
|
startAngle += Math.PI * 2;
|
|
}
|
|
|
|
while (endAngle <= startAngle) {
|
|
endAngle += Math.PI * 2;
|
|
} // When rotated, the extrema of the ellipse will be found at these angles
|
|
|
|
|
|
var angles = [];
|
|
|
|
if (Math.abs(majorX) < 1e-12 || Math.abs(majorY) < 1e-12) {
|
|
// Special case for majorX or majorY = 0
|
|
for (var i = 0; i < 4; i++) {
|
|
angles.push(i / 2 * Math.PI);
|
|
}
|
|
} else {
|
|
// reference https://github.com/bjnortier/dxf/issues/47#issuecomment-545915042
|
|
angles[0] = Math.atan(-majorY * axisRatio / majorX) - Math.PI; // Ensure angles < 0
|
|
|
|
angles[1] = Math.atan(majorX * axisRatio / majorY) - Math.PI;
|
|
angles[2] = angles[0] - Math.PI;
|
|
angles[3] = angles[1] - Math.PI;
|
|
} // Remove angles not falling between start and end
|
|
|
|
|
|
for (var _i2 = 4; _i2 >= 0; _i2--) {
|
|
while (angles[_i2] < startAngle) {
|
|
angles[_i2] += Math.PI * 2;
|
|
}
|
|
|
|
if (angles[_i2] > endAngle) {
|
|
angles.splice(_i2, 1);
|
|
}
|
|
} // Also to consider are the starting and ending points:
|
|
|
|
|
|
angles.push(startAngle);
|
|
angles.push(endAngle); // Compute points lying on the unit circle at these angles
|
|
|
|
var pts = angles.map(function (a) {
|
|
return {
|
|
x: Math.cos(a),
|
|
y: Math.sin(a)
|
|
};
|
|
}); // Transformation matrix, formed by the major and minor axes
|
|
|
|
var M = [[majorX, -majorY * axisRatio], [majorY, majorX * axisRatio]]; // Rotate, scale, and translate points
|
|
|
|
var rotatedPts = pts.map(function (p) {
|
|
return {
|
|
x: p.x * M[0][0] + p.y * M[0][1] + cx,
|
|
y: p.x * M[1][0] + p.y * M[1][1] + cy
|
|
};
|
|
}); // Compute extents of bounding box
|
|
|
|
var bbox = rotatedPts.reduce(function (acc, p) {
|
|
acc.expandByPoint(p);
|
|
return acc;
|
|
}, new _vecks.Box2());
|
|
return bbox;
|
|
};
|
|
/**
|
|
* An ELLIPSE is defined by the major axis, convert to X and Y radius with
|
|
* a rotation angle
|
|
*/
|
|
|
|
|
|
var ellipse = function ellipse(entity) {
|
|
var _ellipseOrArc = ellipseOrArc(entity.x, entity.y, entity.majorX, entity.majorY, entity.axisRatio, entity.startAngle, entity.endAngle),
|
|
bbox0 = _ellipseOrArc.bbox,
|
|
element0 = _ellipseOrArc.element;
|
|
|
|
var _addFlipXIfApplicable2 = addFlipXIfApplicable(entity, {
|
|
bbox: bbox0,
|
|
element: element0
|
|
}),
|
|
bbox = _addFlipXIfApplicable2.bbox,
|
|
element = _addFlipXIfApplicable2.element;
|
|
|
|
return (0, _transformBoundingBoxAndElement["default"])(bbox, element, entity.transforms);
|
|
};
|
|
/**
|
|
* An ARC is an ellipse with equal radii
|
|
*/
|
|
|
|
|
|
var arc = function arc(entity) {
|
|
var _ellipseOrArc2 = ellipseOrArc(entity.x, entity.y, entity.r, 0, 1, entity.startAngle, entity.endAngle, entity.extrusionZ === -1),
|
|
bbox0 = _ellipseOrArc2.bbox,
|
|
element0 = _ellipseOrArc2.element;
|
|
|
|
var _addFlipXIfApplicable3 = addFlipXIfApplicable(entity, {
|
|
bbox: bbox0,
|
|
element: element0
|
|
}),
|
|
bbox = _addFlipXIfApplicable3.bbox,
|
|
element = _addFlipXIfApplicable3.element;
|
|
|
|
return (0, _transformBoundingBoxAndElement["default"])(bbox, element, entity.transforms);
|
|
};
|
|
|
|
var piecewiseToPaths = function piecewiseToPaths(k, knots, controlPoints) {
|
|
var paths = [];
|
|
var controlPointIndex = 0;
|
|
var knotIndex = k;
|
|
|
|
while (knotIndex < knots.length - k + 1) {
|
|
var m = (0, _toPiecewiseBezier.multiplicity)(knots, knotIndex);
|
|
var cp = controlPoints.slice(controlPointIndex, controlPointIndex + k);
|
|
|
|
if (k === 4) {
|
|
paths.push("<path d=\"M ".concat(cp[0].x, " ").concat(cp[0].y, " C ").concat(cp[1].x, " ").concat(cp[1].y, " ").concat(cp[2].x, " ").concat(cp[2].y, " ").concat(cp[3].x, " ").concat(cp[3].y, "\" />"));
|
|
} else if (k === 3) {
|
|
paths.push("<path d=\"M ".concat(cp[0].x, " ").concat(cp[0].y, " Q ").concat(cp[1].x, " ").concat(cp[1].y, " ").concat(cp[2].x, " ").concat(cp[2].y, "\" />"));
|
|
}
|
|
|
|
controlPointIndex += m;
|
|
knotIndex += m;
|
|
}
|
|
|
|
return paths;
|
|
};
|
|
|
|
exports.piecewiseToPaths = piecewiseToPaths;
|
|
|
|
var bezier = function bezier(entity) {
|
|
var bbox = new _vecks.Box2();
|
|
entity.controlPoints.forEach(function (p) {
|
|
bbox = bbox.expandByPoint(p);
|
|
});
|
|
var k = entity.degree + 1;
|
|
var piecewise = (0, _toPiecewiseBezier["default"])(k, entity.controlPoints, entity.knots);
|
|
var paths = piecewiseToPaths(k, piecewise.knots, piecewise.controlPoints);
|
|
var element = "<g>".concat(paths.join(''), "</g>");
|
|
return (0, _transformBoundingBoxAndElement["default"])(bbox, element, entity.transforms);
|
|
};
|
|
/**
|
|
* Switcth the appropriate function on entity type. CIRCLE, ARC and ELLIPSE
|
|
* produce native SVG elements, the rest produce interpolated polylines.
|
|
*/
|
|
|
|
|
|
var entityToBoundsAndElement = function entityToBoundsAndElement(entity) {
|
|
switch (entity.type) {
|
|
case 'CIRCLE':
|
|
return circle(entity);
|
|
|
|
case 'ELLIPSE':
|
|
return ellipse(entity);
|
|
|
|
case 'ARC':
|
|
return arc(entity);
|
|
|
|
case 'SPLINE':
|
|
{
|
|
if (entity.degree === 2 || entity.degree === 3) {
|
|
try {
|
|
return bezier(entity);
|
|
} catch (err) {
|
|
return polyline(entity);
|
|
}
|
|
} else {
|
|
return polyline(entity);
|
|
}
|
|
}
|
|
|
|
case 'LINE':
|
|
case 'LWPOLYLINE':
|
|
case 'POLYLINE':
|
|
{
|
|
return polyline(entity);
|
|
}
|
|
|
|
default:
|
|
_logger["default"].warn('entity type not supported in SVG rendering:', entity.type);
|
|
|
|
return null;
|
|
}
|
|
};
|
|
|
|
var _default = function _default(parsed) {
|
|
var entities = (0, _denormalise["default"])(parsed);
|
|
|
|
var _entities$reduce = entities.reduce(function (acc, entity, i) {
|
|
var rgb = (0, _getRGBForEntity["default"])(parsed.tables.layers, entity);
|
|
var boundsAndElement = entityToBoundsAndElement(entity); // Ignore entities like MTEXT that don't produce SVG elements
|
|
|
|
if (boundsAndElement) {
|
|
var _bbox = boundsAndElement.bbox,
|
|
element = boundsAndElement.element; // Ignore invalid bounding boxes
|
|
|
|
if (_bbox.valid) {
|
|
acc.bbox.expandByPoint(_bbox.min);
|
|
acc.bbox.expandByPoint(_bbox.max);
|
|
}
|
|
|
|
acc.elements.push("<g stroke=\"".concat((0, _rgbToColorAttribute["default"])(rgb), "\">").concat(element, "</g>"));
|
|
}
|
|
|
|
return acc;
|
|
}, {
|
|
bbox: new _vecks.Box2(),
|
|
elements: []
|
|
}),
|
|
bbox = _entities$reduce.bbox,
|
|
elements = _entities$reduce.elements;
|
|
|
|
var viewBox = bbox.valid ? {
|
|
x: bbox.min.x,
|
|
y: -bbox.max.y,
|
|
width: bbox.max.x - bbox.min.x,
|
|
height: bbox.max.y - bbox.min.y
|
|
} : {
|
|
x: 0,
|
|
y: 0,
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
return "<?xml version=\"1.0\"?>\n<svg\n xmlns=\"http://www.w3.org/2000/svg\"\n xmlns:xlink=\"http://www.w3.org/1999/xlink\" version=\"1.1\"\n preserveAspectRatio=\"xMinYMin meet\"\n viewBox=\"".concat(viewBox.x, " ").concat(viewBox.y, " ").concat(viewBox.width, " ").concat(viewBox.height, "\"\n width=\"100%\" height=\"100%\"\n>\n <g stroke=\"#000000\" stroke-width=\"0.1%\" fill=\"none\" transform=\"matrix(1,0,0,-1,0,0)\">\n ").concat(_prettyData.pd.xml(elements.join('\n')), "\n </g>\n</svg>");
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"./denormalise":4,"./entityToPolyline":5,"./getRGBForEntity":6,"./util/logger":34,"./util/rgbToColorAttribute":35,"./util/rotate":36,"./util/toPiecewiseBezier":37,"./util/transformBoundingBoxAndElement":38,"pretty-data":40,"vecks":50}],30:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _round = require("round10");
|
|
|
|
/**
|
|
* Copied and ported to code standard as the b-spline library is not maintained any longer.
|
|
* Source:
|
|
* https://github.com/thibauts/b-spline
|
|
* Copyright (c) 2015 Thibaut Séguy <thibaut.seguy@gmail.com>
|
|
*/
|
|
var _default = function _default(t, degree, points, knots, weights) {
|
|
var n = points.length; // points count
|
|
|
|
var d = points[0].length; // point dimensionality
|
|
|
|
if (t < 0 || t > 1) {
|
|
throw new Error('t out of bounds [0,1]: ' + t);
|
|
}
|
|
|
|
if (degree < 1) throw new Error('degree must be at least 1 (linear)');
|
|
if (degree > n - 1) throw new Error('degree must be less than or equal to point count - 1');
|
|
|
|
if (!weights) {
|
|
// build weight vector of length [n]
|
|
weights = [];
|
|
|
|
for (var i = 0; i < n; i++) {
|
|
weights[i] = 1;
|
|
}
|
|
}
|
|
|
|
if (!knots) {
|
|
// build knot vector of length [n + degree + 1]
|
|
knots = [];
|
|
|
|
for (var _i = 0; _i < n + degree + 1; _i++) {
|
|
knots[_i] = _i;
|
|
}
|
|
} else {
|
|
if (knots.length !== n + degree + 1) throw new Error('bad knot vector length');
|
|
}
|
|
|
|
var domain = [degree, knots.length - 1 - degree]; // remap t to the domain where the spline is defined
|
|
|
|
var low = knots[domain[0]];
|
|
var high = knots[domain[1]];
|
|
t = t * (high - low) + low; // Clamp to the upper & lower bounds instead of
|
|
// throwing an error like in the original lib
|
|
// https://github.com/bjnortier/dxf/issues/28
|
|
|
|
t = Math.max(t, low);
|
|
t = Math.min(t, high); // find s (the spline segment) for the [t] value provided
|
|
|
|
var s;
|
|
|
|
for (s = domain[0]; s < domain[1]; s++) {
|
|
if (t >= knots[s] && t <= knots[s + 1]) {
|
|
break;
|
|
}
|
|
} // convert points to homogeneous coordinates
|
|
|
|
|
|
var v = [];
|
|
|
|
for (var _i2 = 0; _i2 < n; _i2++) {
|
|
v[_i2] = [];
|
|
|
|
for (var j = 0; j < d; j++) {
|
|
v[_i2][j] = points[_i2][j] * weights[_i2];
|
|
}
|
|
|
|
v[_i2][d] = weights[_i2];
|
|
} // l (level) goes from 1 to the curve degree + 1
|
|
|
|
|
|
var alpha;
|
|
|
|
for (var l = 1; l <= degree + 1; l++) {
|
|
// build level l of the pyramid
|
|
for (var _i3 = s; _i3 > s - degree - 1 + l; _i3--) {
|
|
alpha = (t - knots[_i3]) / (knots[_i3 + degree + 1 - l] - knots[_i3]); // interpolate each component
|
|
|
|
for (var _j = 0; _j < d + 1; _j++) {
|
|
v[_i3][_j] = (1 - alpha) * v[_i3 - 1][_j] + alpha * v[_i3][_j];
|
|
}
|
|
}
|
|
} // convert back to cartesian and return
|
|
|
|
|
|
var result = [];
|
|
|
|
for (var _i4 = 0; _i4 < d; _i4++) {
|
|
result[_i4] = (0, _round.round10)(v[s][_i4] / v[s][d], -9);
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"round10":41}],31:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
var _default = [[0, 0, 0], [255, 0, 0], [255, 255, 0], [0, 255, 0], [0, 255, 255], [0, 0, 255], [255, 0, 255], [255, 255, 255], [65, 65, 65], [128, 128, 128], [255, 0, 0], [255, 170, 170], [189, 0, 0], [189, 126, 126], [129, 0, 0], [129, 86, 86], [104, 0, 0], [104, 69, 69], [79, 0, 0], [79, 53, 53], [255, 63, 0], [255, 191, 170], [189, 46, 0], [189, 141, 126], [129, 31, 0], [129, 96, 86], [104, 25, 0], [104, 78, 69], [79, 19, 0], [79, 59, 53], [255, 127, 0], [255, 212, 170], [189, 94, 0], [189, 157, 126], [129, 64, 0], [129, 107, 86], [104, 52, 0], [104, 86, 69], [79, 39, 0], [79, 66, 53], [255, 191, 0], [255, 234, 170], [189, 141, 0], [189, 173, 126], [129, 96, 0], [129, 118, 86], [104, 78, 0], [104, 95, 69], [79, 59, 0], [79, 73, 53], [255, 255, 0], [255, 255, 170], [189, 189, 0], [189, 189, 126], [129, 129, 0], [129, 129, 86], [104, 104, 0], [104, 104, 69], [79, 79, 0], [79, 79, 53], [191, 255, 0], [234, 255, 170], [141, 189, 0], [173, 189, 126], [96, 129, 0], [118, 129, 86], [78, 104, 0], [95, 104, 69], [59, 79, 0], [73, 79, 53], [127, 255, 0], [212, 255, 170], [94, 189, 0], [157, 189, 126], [64, 129, 0], [107, 129, 86], [52, 104, 0], [86, 104, 69], [39, 79, 0], [66, 79, 53], [63, 255, 0], [191, 255, 170], [46, 189, 0], [141, 189, 126], [31, 129, 0], [96, 129, 86], [25, 104, 0], [78, 104, 69], [19, 79, 0], [59, 79, 53], [0, 255, 0], [170, 255, 170], [0, 189, 0], [126, 189, 126], [0, 129, 0], [86, 129, 86], [0, 104, 0], [69, 104, 69], [0, 79, 0], [53, 79, 53], [0, 255, 63], [170, 255, 191], [0, 189, 46], [126, 189, 141], [0, 129, 31], [86, 129, 96], [0, 104, 25], [69, 104, 78], [0, 79, 19], [53, 79, 59], [0, 255, 127], [170, 255, 212], [0, 189, 94], [126, 189, 157], [0, 129, 64], [86, 129, 107], [0, 104, 52], [69, 104, 86], [0, 79, 39], [53, 79, 66], [0, 255, 191], [170, 255, 234], [0, 189, 141], [126, 189, 173], [0, 129, 96], [86, 129, 118], [0, 104, 78], [69, 104, 95], [0, 79, 59], [53, 79, 73], [0, 255, 255], [170, 255, 255], [0, 189, 189], [126, 189, 189], [0, 129, 129], [86, 129, 129], [0, 104, 104], [69, 104, 104], [0, 79, 79], [53, 79, 79], [0, 191, 255], [170, 234, 255], [0, 141, 189], [126, 173, 189], [0, 96, 129], [86, 118, 129], [0, 78, 104], [69, 95, 104], [0, 59, 79], [53, 73, 79], [0, 127, 255], [170, 212, 255], [0, 94, 189], [126, 157, 189], [0, 64, 129], [86, 107, 129], [0, 52, 104], [69, 86, 104], [0, 39, 79], [53, 66, 79], [0, 63, 255], [170, 191, 255], [0, 46, 189], [126, 141, 189], [0, 31, 129], [86, 96, 129], [0, 25, 104], [69, 78, 104], [0, 19, 79], [53, 59, 79], [0, 0, 255], [170, 170, 255], [0, 0, 189], [126, 126, 189], [0, 0, 129], [86, 86, 129], [0, 0, 104], [69, 69, 104], [0, 0, 79], [53, 53, 79], [63, 0, 255], [191, 170, 255], [46, 0, 189], [141, 126, 189], [31, 0, 129], [96, 86, 129], [25, 0, 104], [78, 69, 104], [19, 0, 79], [59, 53, 79], [127, 0, 255], [212, 170, 255], [94, 0, 189], [157, 126, 189], [64, 0, 129], [107, 86, 129], [52, 0, 104], [86, 69, 104], [39, 0, 79], [66, 53, 79], [191, 0, 255], [234, 170, 255], [141, 0, 189], [173, 126, 189], [96, 0, 129], [118, 86, 129], [78, 0, 104], [95, 69, 104], [59, 0, 79], [73, 53, 79], [255, 0, 255], [255, 170, 255], [189, 0, 189], [189, 126, 189], [129, 0, 129], [129, 86, 129], [104, 0, 104], [104, 69, 104], [79, 0, 79], [79, 53, 79], [255, 0, 191], [255, 170, 234], [189, 0, 141], [189, 126, 173], [129, 0, 96], [129, 86, 118], [104, 0, 78], [104, 69, 95], [79, 0, 59], [79, 53, 73], [255, 0, 127], [255, 170, 212], [189, 0, 94], [189, 126, 157], [129, 0, 64], [129, 86, 107], [104, 0, 52], [104, 69, 86], [79, 0, 39], [79, 53, 66], [255, 0, 63], [255, 170, 191], [189, 0, 46], [189, 126, 141], [129, 0, 31], [129, 86, 96], [104, 0, 25], [104, 69, 78], [79, 0, 19], [79, 53, 59], [51, 51, 51], [80, 80, 80], [105, 105, 105], [130, 130, 130], [190, 190, 190], [255, 255, 255]];
|
|
exports["default"] = _default;
|
|
},{}],32:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _vecks = require("vecks");
|
|
|
|
/**
|
|
* Create the arcs point for a LWPOLYLINE. The start and end are excluded
|
|
*
|
|
* See diagram.png in this directory for description of points and angles used.
|
|
*/
|
|
var _default = function _default(from, to, bulge, resolution) {
|
|
// Resolution in degrees
|
|
if (!resolution) {
|
|
resolution = 5;
|
|
} // If the bulge is < 0, the arc goes clockwise. So we simply
|
|
// reverse a and b and invert sign
|
|
// Bulge = tan(theta/4)
|
|
|
|
|
|
var theta;
|
|
var a;
|
|
var b;
|
|
|
|
if (bulge < 0) {
|
|
theta = Math.atan(-bulge) * 4;
|
|
a = new _vecks.V2(from[0], from[1]);
|
|
b = new _vecks.V2(to[0], to[1]);
|
|
} else {
|
|
// Default is counter-clockwise
|
|
theta = Math.atan(bulge) * 4;
|
|
a = new _vecks.V2(to[0], to[1]);
|
|
b = new _vecks.V2(from[0], from[1]);
|
|
}
|
|
|
|
var ab = b.sub(a);
|
|
var lengthAB = ab.length();
|
|
var c = a.add(ab.multiply(0.5)); // Distance from center of arc to line between form and to points
|
|
|
|
var lengthCD = Math.abs(lengthAB / 2 / Math.tan(theta / 2));
|
|
var normAB = ab.norm();
|
|
var d;
|
|
|
|
if (theta < Math.PI) {
|
|
var normDC = new _vecks.V2(normAB.x * Math.cos(Math.PI / 2) - normAB.y * Math.sin(Math.PI / 2), normAB.y * Math.cos(Math.PI / 2) + normAB.x * Math.sin(Math.PI / 2)); // D is the center of the arc
|
|
|
|
d = c.add(normDC.multiply(-lengthCD));
|
|
} else {
|
|
var normCD = new _vecks.V2(normAB.x * Math.cos(Math.PI / 2) - normAB.y * Math.sin(Math.PI / 2), normAB.y * Math.cos(Math.PI / 2) + normAB.x * Math.sin(Math.PI / 2)); // D is the center of the arc
|
|
|
|
d = c.add(normCD.multiply(lengthCD));
|
|
} // Add points between start start and eng angle relative
|
|
// to the center point
|
|
|
|
|
|
var startAngle = Math.atan2(b.y - d.y, b.x - d.x) / Math.PI * 180;
|
|
var endAngle = Math.atan2(a.y - d.y, a.x - d.x) / Math.PI * 180;
|
|
|
|
if (endAngle < startAngle) {
|
|
endAngle += 360;
|
|
}
|
|
|
|
var r = b.sub(d).length();
|
|
var startInter = Math.floor(startAngle / resolution) * resolution + resolution;
|
|
var endInter = Math.ceil(endAngle / resolution) * resolution - resolution;
|
|
var points = [];
|
|
|
|
for (var i = startInter; i <= endInter; i += resolution) {
|
|
points.push(d.add(new _vecks.V2(Math.cos(i / 180 * Math.PI) * r, Math.sin(i / 180 * Math.PI) * r)));
|
|
} // Maintain the right ordering to join the from and to points
|
|
|
|
|
|
if (bulge < 0) {
|
|
points.reverse();
|
|
}
|
|
|
|
return points.map(function (p) {
|
|
return [p.x, p.y];
|
|
});
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"vecks":50}],33:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
/**
|
|
* Knot insertion is known as "Boehm's algorithm"
|
|
*
|
|
* https://math.stackexchange.com/questions/417859/convert-a-b-spline-into-bezier-curves
|
|
* code adapted from http://preserve.mactech.com/articles/develop/issue_25/schneider.html
|
|
*/
|
|
var _default = function _default(k, controlPoints, knots, newKnot) {
|
|
var x = knots;
|
|
var b = controlPoints;
|
|
var n = controlPoints.length;
|
|
var i = 0;
|
|
var foundIndex = false;
|
|
|
|
for (var j = 0; j < n + k; j++) {
|
|
if (newKnot > x[j] && newKnot <= x[j + 1]) {
|
|
i = j;
|
|
foundIndex = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!foundIndex) {
|
|
throw new Error('invalid new knot');
|
|
}
|
|
|
|
var xHat = [];
|
|
|
|
for (var _j = 0; _j < n + k + 1; _j++) {
|
|
if (_j <= i) {
|
|
xHat[_j] = x[_j];
|
|
} else if (_j === i + 1) {
|
|
xHat[_j] = newKnot;
|
|
} else {
|
|
xHat[_j] = x[_j - 1];
|
|
}
|
|
}
|
|
|
|
var alpha;
|
|
var bHat = [];
|
|
|
|
for (var _j2 = 0; _j2 < n + 1; _j2++) {
|
|
if (_j2 <= i - k + 1) {
|
|
alpha = 1;
|
|
} else if (i - k + 2 <= _j2 && _j2 <= i) {
|
|
if (x[_j2 + k - 1] - x[_j2] === 0) {
|
|
alpha = 0;
|
|
} else {
|
|
alpha = (newKnot - x[_j2]) / (x[_j2 + k - 1] - x[_j2]);
|
|
}
|
|
} else {
|
|
alpha = 0;
|
|
}
|
|
|
|
if (alpha === 0) {
|
|
bHat[_j2] = b[_j2 - 1];
|
|
} else if (alpha === 1) {
|
|
bHat[_j2] = b[_j2];
|
|
} else {
|
|
bHat[_j2] = {
|
|
x: (1 - alpha) * b[_j2 - 1].x + alpha * b[_j2].x,
|
|
y: (1 - alpha) * b[_j2 - 1].y + alpha * b[_j2].y
|
|
};
|
|
}
|
|
}
|
|
|
|
return {
|
|
controlPoints: bHat,
|
|
knots: xHat
|
|
};
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{}],34:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _config = _interopRequireDefault(require("../config"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
function info() {
|
|
if (_config["default"].verbose) {
|
|
console.info.apply(undefined, arguments);
|
|
}
|
|
}
|
|
|
|
function warn() {
|
|
if (_config["default"].verbose) {
|
|
console.warn.apply(undefined, arguments);
|
|
}
|
|
}
|
|
|
|
function error() {
|
|
console.error.apply(undefined, arguments);
|
|
}
|
|
|
|
var _default = {
|
|
info: info,
|
|
warn: warn,
|
|
error: error
|
|
};
|
|
exports["default"] = _default;
|
|
},{"../config":3}],35:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
/**
|
|
* Convert an RGB array to a CSS string definition.
|
|
* Converts white lines to black as the default.
|
|
*/
|
|
var _default = function _default(rgb) {
|
|
if (rgb[0] === 255 && rgb[1] === 255 && rgb[2] === 255) {
|
|
return 'rgb(0, 0, 0)';
|
|
} else {
|
|
return "rgb(".concat(rgb[0], ", ").concat(rgb[1], ", ").concat(rgb[2], ")");
|
|
}
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{}],36:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
/**
|
|
* Rotate a points by the given angle.
|
|
*
|
|
* @param points the points
|
|
* @param angle the rotation angle
|
|
*/
|
|
var _default = function _default(p, angle) {
|
|
return {
|
|
x: p.x * Math.cos(angle) - p.y * Math.sin(angle),
|
|
y: p.y * Math.cos(angle) + p.x * Math.sin(angle)
|
|
};
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{}],37:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = exports.computeInsertions = exports.multiplicity = exports.checkPinned = void 0;
|
|
|
|
var _insertKnot = _interopRequireDefault(require("./insertKnot"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
/**
|
|
* For a pinned spline, the knots have to be repeated k times
|
|
* (where k is the order), at both the beginning and the end
|
|
*/
|
|
var checkPinned = function checkPinned(k, knots) {
|
|
// Pinned at the start
|
|
for (var i = 1; i < k; ++i) {
|
|
if (knots[i] !== knots[0]) {
|
|
throw Error("not pinned. order: ".concat(k, " knots: ").concat(knots));
|
|
}
|
|
} // Pinned at the end
|
|
|
|
|
|
for (var _i = knots.length - 2; _i > knots.length - k - 1; --_i) {
|
|
if (knots[_i] !== knots[knots.length - 1]) {
|
|
throw Error("not pinned. order: ".concat(k, " knots: ").concat(knots));
|
|
}
|
|
}
|
|
};
|
|
|
|
exports.checkPinned = checkPinned;
|
|
|
|
var multiplicity = function multiplicity(knots, index) {
|
|
var m = 1;
|
|
|
|
for (var i = index + 1; i < knots.length; ++i) {
|
|
if (knots[i] === knots[index]) {
|
|
++m;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return m;
|
|
};
|
|
/**
|
|
* https://saccade.com/writing/graphics/KnotVectors.pdf
|
|
* A quadratic piecewise Bézier knot vector with seven control points
|
|
* will look like this [0 0 0 1 1 2 2 3 3 3]. In general, in a
|
|
* piecewise Bézier knot vector the first k knots are the same,
|
|
* then each subsequent group of k-1 knots is the same,
|
|
* until you get to the end.
|
|
*/
|
|
|
|
|
|
exports.multiplicity = multiplicity;
|
|
|
|
var computeInsertions = function computeInsertions(k, knots) {
|
|
var inserts = [];
|
|
var i = k;
|
|
|
|
while (i < knots.length - k) {
|
|
var knot = knots[i];
|
|
var m = multiplicity(knots, i);
|
|
|
|
for (var j = 0; j < k - m - 1; ++j) {
|
|
inserts.push(knot);
|
|
}
|
|
|
|
i = i + m;
|
|
}
|
|
|
|
return inserts;
|
|
};
|
|
|
|
exports.computeInsertions = computeInsertions;
|
|
|
|
var _default = function _default(k, controlPoints, knots) {
|
|
checkPinned(k, knots);
|
|
var insertions = computeInsertions(k, knots);
|
|
return insertions.reduce(function (acc, tNew) {
|
|
return (0, _insertKnot["default"])(k, acc.controlPoints, acc.knots, tNew);
|
|
}, {
|
|
controlPoints: controlPoints,
|
|
knots: knots
|
|
});
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"./insertKnot":33}],38:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _vecks = require("vecks");
|
|
|
|
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
|
|
|
|
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
|
|
|
|
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
|
|
|
|
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
|
|
|
|
function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
|
|
|
|
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
|
|
|
|
/**
|
|
* Transform the bounding box and the SVG element by the given
|
|
* transforms. The <g> element are created in reverse transform
|
|
* order and the bounding box in the given order.
|
|
*/
|
|
var _default = function _default(bbox, element, transforms) {
|
|
var transformedElement = '';
|
|
var matrices = transforms.map(function (transform) {
|
|
// Create the transformation matrix
|
|
var tx = transform.x || 0;
|
|
var ty = transform.y || 0;
|
|
var sx = transform.scaleX || 1;
|
|
var sy = transform.scaleY || 1;
|
|
var angle = (transform.rotation || 0) / 180 * Math.PI;
|
|
var cos = Math.cos,
|
|
sin = Math.sin;
|
|
var a, b, c, d, e, f; // In DXF an extrusionZ value of -1 denote a tranform around the Y axis.
|
|
|
|
if (transform.extrusionZ === -1) {
|
|
a = -sx * cos(angle);
|
|
b = sx * sin(angle);
|
|
c = sy * sin(angle);
|
|
d = sy * cos(angle);
|
|
e = -tx;
|
|
f = ty;
|
|
} else {
|
|
a = sx * cos(angle);
|
|
b = sx * sin(angle);
|
|
c = -sy * sin(angle);
|
|
d = sy * cos(angle);
|
|
e = tx;
|
|
f = ty;
|
|
}
|
|
|
|
return [a, b, c, d, e, f];
|
|
}); // Only transform the bounding box is it is valid (i.e. not Infinity)
|
|
|
|
var transformedBBox = new _vecks.Box2();
|
|
|
|
if (bbox.valid) {
|
|
var bboxPoints = [{
|
|
x: bbox.min.x,
|
|
y: bbox.min.y
|
|
}, {
|
|
x: bbox.max.x,
|
|
y: bbox.min.y
|
|
}, {
|
|
x: bbox.max.x,
|
|
y: bbox.max.y
|
|
}, {
|
|
x: bbox.min.x,
|
|
y: bbox.max.y
|
|
}];
|
|
matrices.forEach(function (_ref) {
|
|
var _ref2 = _slicedToArray(_ref, 6),
|
|
a = _ref2[0],
|
|
b = _ref2[1],
|
|
c = _ref2[2],
|
|
d = _ref2[3],
|
|
e = _ref2[4],
|
|
f = _ref2[5];
|
|
|
|
bboxPoints = bboxPoints.map(function (point) {
|
|
return {
|
|
x: point.x * a + point.y * c + e,
|
|
y: point.x * b + point.y * d + f
|
|
};
|
|
});
|
|
});
|
|
transformedBBox = bboxPoints.reduce(function (acc, point) {
|
|
return acc.expandByPoint(point);
|
|
}, new _vecks.Box2());
|
|
}
|
|
|
|
matrices.reverse();
|
|
matrices.forEach(function (_ref3) {
|
|
var _ref4 = _slicedToArray(_ref3, 6),
|
|
a = _ref4[0],
|
|
b = _ref4[1],
|
|
c = _ref4[2],
|
|
d = _ref4[3],
|
|
e = _ref4[4],
|
|
f = _ref4[5];
|
|
|
|
transformedElement += "<g transform=\"matrix(".concat(a, " ").concat(b, " ").concat(c, " ").concat(d, " ").concat(e, " ").concat(f, ")\">");
|
|
});
|
|
transformedElement += element;
|
|
matrices.forEach(function (transform) {
|
|
transformedElement += '</g>';
|
|
});
|
|
return {
|
|
bbox: transformedBBox,
|
|
element: transformedElement
|
|
};
|
|
};
|
|
|
|
exports["default"] = _default;
|
|
},{"vecks":50}],39:[function(require,module,exports){
|
|
(function (global){
|
|
/**
|
|
* @license
|
|
* Lodash <https://lodash.com/>
|
|
* Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
|
|
* Released under MIT license <https://lodash.com/license>
|
|
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
|
|
* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
|
|
*/
|
|
;(function() {
|
|
|
|
/** Used as a safe reference for `undefined` in pre-ES5 environments. */
|
|
var undefined;
|
|
|
|
/** Used as the semantic version number. */
|
|
var VERSION = '4.17.19';
|
|
|
|
/** Used as the size to enable large array optimizations. */
|
|
var LARGE_ARRAY_SIZE = 200;
|
|
|
|
/** Error message constants. */
|
|
var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
|
|
FUNC_ERROR_TEXT = 'Expected a function';
|
|
|
|
/** Used to stand-in for `undefined` hash values. */
|
|
var HASH_UNDEFINED = '__lodash_hash_undefined__';
|
|
|
|
/** Used as the maximum memoize cache size. */
|
|
var MAX_MEMOIZE_SIZE = 500;
|
|
|
|
/** Used as the internal argument placeholder. */
|
|
var PLACEHOLDER = '__lodash_placeholder__';
|
|
|
|
/** Used to compose bitmasks for cloning. */
|
|
var CLONE_DEEP_FLAG = 1,
|
|
CLONE_FLAT_FLAG = 2,
|
|
CLONE_SYMBOLS_FLAG = 4;
|
|
|
|
/** Used to compose bitmasks for value comparisons. */
|
|
var COMPARE_PARTIAL_FLAG = 1,
|
|
COMPARE_UNORDERED_FLAG = 2;
|
|
|
|
/** Used to compose bitmasks for function metadata. */
|
|
var WRAP_BIND_FLAG = 1,
|
|
WRAP_BIND_KEY_FLAG = 2,
|
|
WRAP_CURRY_BOUND_FLAG = 4,
|
|
WRAP_CURRY_FLAG = 8,
|
|
WRAP_CURRY_RIGHT_FLAG = 16,
|
|
WRAP_PARTIAL_FLAG = 32,
|
|
WRAP_PARTIAL_RIGHT_FLAG = 64,
|
|
WRAP_ARY_FLAG = 128,
|
|
WRAP_REARG_FLAG = 256,
|
|
WRAP_FLIP_FLAG = 512;
|
|
|
|
/** Used as default options for `_.truncate`. */
|
|
var DEFAULT_TRUNC_LENGTH = 30,
|
|
DEFAULT_TRUNC_OMISSION = '...';
|
|
|
|
/** Used to detect hot functions by number of calls within a span of milliseconds. */
|
|
var HOT_COUNT = 800,
|
|
HOT_SPAN = 16;
|
|
|
|
/** Used to indicate the type of lazy iteratees. */
|
|
var LAZY_FILTER_FLAG = 1,
|
|
LAZY_MAP_FLAG = 2,
|
|
LAZY_WHILE_FLAG = 3;
|
|
|
|
/** Used as references for various `Number` constants. */
|
|
var INFINITY = 1 / 0,
|
|
MAX_SAFE_INTEGER = 9007199254740991,
|
|
MAX_INTEGER = 1.7976931348623157e+308,
|
|
NAN = 0 / 0;
|
|
|
|
/** Used as references for the maximum length and index of an array. */
|
|
var MAX_ARRAY_LENGTH = 4294967295,
|
|
MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
|
|
HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
|
|
|
|
/** Used to associate wrap methods with their bit flags. */
|
|
var wrapFlags = [
|
|
['ary', WRAP_ARY_FLAG],
|
|
['bind', WRAP_BIND_FLAG],
|
|
['bindKey', WRAP_BIND_KEY_FLAG],
|
|
['curry', WRAP_CURRY_FLAG],
|
|
['curryRight', WRAP_CURRY_RIGHT_FLAG],
|
|
['flip', WRAP_FLIP_FLAG],
|
|
['partial', WRAP_PARTIAL_FLAG],
|
|
['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
|
|
['rearg', WRAP_REARG_FLAG]
|
|
];
|
|
|
|
/** `Object#toString` result references. */
|
|
var argsTag = '[object Arguments]',
|
|
arrayTag = '[object Array]',
|
|
asyncTag = '[object AsyncFunction]',
|
|
boolTag = '[object Boolean]',
|
|
dateTag = '[object Date]',
|
|
domExcTag = '[object DOMException]',
|
|
errorTag = '[object Error]',
|
|
funcTag = '[object Function]',
|
|
genTag = '[object GeneratorFunction]',
|
|
mapTag = '[object Map]',
|
|
numberTag = '[object Number]',
|
|
nullTag = '[object Null]',
|
|
objectTag = '[object Object]',
|
|
promiseTag = '[object Promise]',
|
|
proxyTag = '[object Proxy]',
|
|
regexpTag = '[object RegExp]',
|
|
setTag = '[object Set]',
|
|
stringTag = '[object String]',
|
|
symbolTag = '[object Symbol]',
|
|
undefinedTag = '[object Undefined]',
|
|
weakMapTag = '[object WeakMap]',
|
|
weakSetTag = '[object WeakSet]';
|
|
|
|
var arrayBufferTag = '[object ArrayBuffer]',
|
|
dataViewTag = '[object DataView]',
|
|
float32Tag = '[object Float32Array]',
|
|
float64Tag = '[object Float64Array]',
|
|
int8Tag = '[object Int8Array]',
|
|
int16Tag = '[object Int16Array]',
|
|
int32Tag = '[object Int32Array]',
|
|
uint8Tag = '[object Uint8Array]',
|
|
uint8ClampedTag = '[object Uint8ClampedArray]',
|
|
uint16Tag = '[object Uint16Array]',
|
|
uint32Tag = '[object Uint32Array]';
|
|
|
|
/** Used to match empty string literals in compiled template source. */
|
|
var reEmptyStringLeading = /\b__p \+= '';/g,
|
|
reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
|
|
reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
|
|
|
|
/** Used to match HTML entities and HTML characters. */
|
|
var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
|
|
reUnescapedHtml = /[&<>"']/g,
|
|
reHasEscapedHtml = RegExp(reEscapedHtml.source),
|
|
reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
|
|
|
|
/** Used to match template delimiters. */
|
|
var reEscape = /<%-([\s\S]+?)%>/g,
|
|
reEvaluate = /<%([\s\S]+?)%>/g,
|
|
reInterpolate = /<%=([\s\S]+?)%>/g;
|
|
|
|
/** Used to match property names within property paths. */
|
|
var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
|
|
reIsPlainProp = /^\w*$/,
|
|
rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;
|
|
|
|
/**
|
|
* Used to match `RegExp`
|
|
* [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
|
|
*/
|
|
var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
|
|
reHasRegExpChar = RegExp(reRegExpChar.source);
|
|
|
|
/** Used to match leading and trailing whitespace. */
|
|
var reTrim = /^\s+|\s+$/g,
|
|
reTrimStart = /^\s+/,
|
|
reTrimEnd = /\s+$/;
|
|
|
|
/** Used to match wrap detail comments. */
|
|
var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
|
|
reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
|
|
reSplitDetails = /,? & /;
|
|
|
|
/** Used to match words composed of alphanumeric characters. */
|
|
var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;
|
|
|
|
/** Used to match backslashes in property paths. */
|
|
var reEscapeChar = /\\(\\)?/g;
|
|
|
|
/**
|
|
* Used to match
|
|
* [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
|
|
*/
|
|
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
|
|
|
|
/** Used to match `RegExp` flags from their coerced string values. */
|
|
var reFlags = /\w*$/;
|
|
|
|
/** Used to detect bad signed hexadecimal string values. */
|
|
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
|
|
|
|
/** Used to detect binary string values. */
|
|
var reIsBinary = /^0b[01]+$/i;
|
|
|
|
/** Used to detect host constructors (Safari). */
|
|
var reIsHostCtor = /^\[object .+?Constructor\]$/;
|
|
|
|
/** Used to detect octal string values. */
|
|
var reIsOctal = /^0o[0-7]+$/i;
|
|
|
|
/** Used to detect unsigned integer values. */
|
|
var reIsUint = /^(?:0|[1-9]\d*)$/;
|
|
|
|
/** Used to match Latin Unicode letters (excluding mathematical operators). */
|
|
var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;
|
|
|
|
/** Used to ensure capturing order of template delimiters. */
|
|
var reNoMatch = /($^)/;
|
|
|
|
/** Used to match unescaped characters in compiled string literals. */
|
|
var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
|
|
|
|
/** Used to compose unicode character classes. */
|
|
var rsAstralRange = '\\ud800-\\udfff',
|
|
rsComboMarksRange = '\\u0300-\\u036f',
|
|
reComboHalfMarksRange = '\\ufe20-\\ufe2f',
|
|
rsComboSymbolsRange = '\\u20d0-\\u20ff',
|
|
rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
|
|
rsDingbatRange = '\\u2700-\\u27bf',
|
|
rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
|
|
rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
|
|
rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
|
|
rsPunctuationRange = '\\u2000-\\u206f',
|
|
rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
|
|
rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
|
|
rsVarRange = '\\ufe0e\\ufe0f',
|
|
rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;
|
|
|
|
/** Used to compose unicode capture groups. */
|
|
var rsApos = "['\u2019]",
|
|
rsAstral = '[' + rsAstralRange + ']',
|
|
rsBreak = '[' + rsBreakRange + ']',
|
|
rsCombo = '[' + rsComboRange + ']',
|
|
rsDigits = '\\d+',
|
|
rsDingbat = '[' + rsDingbatRange + ']',
|
|
rsLower = '[' + rsLowerRange + ']',
|
|
rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
|
|
rsFitz = '\\ud83c[\\udffb-\\udfff]',
|
|
rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
|
|
rsNonAstral = '[^' + rsAstralRange + ']',
|
|
rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
|
|
rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
|
|
rsUpper = '[' + rsUpperRange + ']',
|
|
rsZWJ = '\\u200d';
|
|
|
|
/** Used to compose unicode regexes. */
|
|
var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
|
|
rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
|
|
rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
|
|
rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
|
|
reOptMod = rsModifier + '?',
|
|
rsOptVar = '[' + rsVarRange + ']?',
|
|
rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
|
|
rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])',
|
|
rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])',
|
|
rsSeq = rsOptVar + reOptMod + rsOptJoin,
|
|
rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
|
|
rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
|
|
|
|
/** Used to match apostrophes. */
|
|
var reApos = RegExp(rsApos, 'g');
|
|
|
|
/**
|
|
* Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
|
|
* [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
|
|
*/
|
|
var reComboMark = RegExp(rsCombo, 'g');
|
|
|
|
/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
|
|
var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
|
|
|
|
/** Used to match complex or compound words. */
|
|
var reUnicodeWord = RegExp([
|
|
rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
|
|
rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
|
|
rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
|
|
rsUpper + '+' + rsOptContrUpper,
|
|
rsOrdUpper,
|
|
rsOrdLower,
|
|
rsDigits,
|
|
rsEmoji
|
|
].join('|'), 'g');
|
|
|
|
/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
|
|
var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');
|
|
|
|
/** Used to detect strings that need a more robust regexp to match words. */
|
|
var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;
|
|
|
|
/** Used to assign default `context` object properties. */
|
|
var contextProps = [
|
|
'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
|
|
'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
|
|
'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
|
|
'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
|
|
'_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
|
|
];
|
|
|
|
/** Used to make template sourceURLs easier to identify. */
|
|
var templateCounter = -1;
|
|
|
|
/** Used to identify `toStringTag` values of typed arrays. */
|
|
var typedArrayTags = {};
|
|
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
|
|
typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
|
|
typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
|
|
typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
|
|
typedArrayTags[uint32Tag] = true;
|
|
typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
|
|
typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
|
|
typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
|
|
typedArrayTags[errorTag] = typedArrayTags[funcTag] =
|
|
typedArrayTags[mapTag] = typedArrayTags[numberTag] =
|
|
typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
|
|
typedArrayTags[setTag] = typedArrayTags[stringTag] =
|
|
typedArrayTags[weakMapTag] = false;
|
|
|
|
/** Used to identify `toStringTag` values supported by `_.clone`. */
|
|
var cloneableTags = {};
|
|
cloneableTags[argsTag] = cloneableTags[arrayTag] =
|
|
cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
|
|
cloneableTags[boolTag] = cloneableTags[dateTag] =
|
|
cloneableTags[float32Tag] = cloneableTags[float64Tag] =
|
|
cloneableTags[int8Tag] = cloneableTags[int16Tag] =
|
|
cloneableTags[int32Tag] = cloneableTags[mapTag] =
|
|
cloneableTags[numberTag] = cloneableTags[objectTag] =
|
|
cloneableTags[regexpTag] = cloneableTags[setTag] =
|
|
cloneableTags[stringTag] = cloneableTags[symbolTag] =
|
|
cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
|
|
cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
|
|
cloneableTags[errorTag] = cloneableTags[funcTag] =
|
|
cloneableTags[weakMapTag] = false;
|
|
|
|
/** Used to map Latin Unicode letters to basic Latin letters. */
|
|
var deburredLetters = {
|
|
// Latin-1 Supplement block.
|
|
'\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
|
|
'\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
|
|
'\xc7': 'C', '\xe7': 'c',
|
|
'\xd0': 'D', '\xf0': 'd',
|
|
'\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
|
|
'\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
|
|
'\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
|
|
'\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i',
|
|
'\xd1': 'N', '\xf1': 'n',
|
|
'\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
|
|
'\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
|
|
'\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
|
|
'\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
|
|
'\xdd': 'Y', '\xfd': 'y', '\xff': 'y',
|
|
'\xc6': 'Ae', '\xe6': 'ae',
|
|
'\xde': 'Th', '\xfe': 'th',
|
|
'\xdf': 'ss',
|
|
// Latin Extended-A block.
|
|
'\u0100': 'A', '\u0102': 'A', '\u0104': 'A',
|
|
'\u0101': 'a', '\u0103': 'a', '\u0105': 'a',
|
|
'\u0106': 'C', '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
|
|
'\u0107': 'c', '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
|
|
'\u010e': 'D', '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
|
|
'\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
|
|
'\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
|
|
'\u011c': 'G', '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
|
|
'\u011d': 'g', '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
|
|
'\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
|
|
'\u0128': 'I', '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
|
|
'\u0129': 'i', '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
|
|
'\u0134': 'J', '\u0135': 'j',
|
|
'\u0136': 'K', '\u0137': 'k', '\u0138': 'k',
|
|
'\u0139': 'L', '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
|
|
'\u013a': 'l', '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
|
|
'\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
|
|
'\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
|
|
'\u014c': 'O', '\u014e': 'O', '\u0150': 'O',
|
|
'\u014d': 'o', '\u014f': 'o', '\u0151': 'o',
|
|
'\u0154': 'R', '\u0156': 'R', '\u0158': 'R',
|
|
'\u0155': 'r', '\u0157': 'r', '\u0159': 'r',
|
|
'\u015a': 'S', '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
|
|
'\u015b': 's', '\u015d': 's', '\u015f': 's', '\u0161': 's',
|
|
'\u0162': 'T', '\u0164': 'T', '\u0166': 'T',
|
|
'\u0163': 't', '\u0165': 't', '\u0167': 't',
|
|
'\u0168': 'U', '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
|
|
'\u0169': 'u', '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
|
|
'\u0174': 'W', '\u0175': 'w',
|
|
'\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y',
|
|
'\u0179': 'Z', '\u017b': 'Z', '\u017d': 'Z',
|
|
'\u017a': 'z', '\u017c': 'z', '\u017e': 'z',
|
|
'\u0132': 'IJ', '\u0133': 'ij',
|
|
'\u0152': 'Oe', '\u0153': 'oe',
|
|
'\u0149': "'n", '\u017f': 's'
|
|
};
|
|
|
|
/** Used to map characters to HTML entities. */
|
|
var htmlEscapes = {
|
|
'&': '&',
|
|
'<': '<',
|
|
'>': '>',
|
|
'"': '"',
|
|
"'": '''
|
|
};
|
|
|
|
/** Used to map HTML entities to characters. */
|
|
var htmlUnescapes = {
|
|
'&': '&',
|
|
'<': '<',
|
|
'>': '>',
|
|
'"': '"',
|
|
''': "'"
|
|
};
|
|
|
|
/** Used to escape characters for inclusion in compiled string literals. */
|
|
var stringEscapes = {
|
|
'\\': '\\',
|
|
"'": "'",
|
|
'\n': 'n',
|
|
'\r': 'r',
|
|
'\u2028': 'u2028',
|
|
'\u2029': 'u2029'
|
|
};
|
|
|
|
/** Built-in method references without a dependency on `root`. */
|
|
var freeParseFloat = parseFloat,
|
|
freeParseInt = parseInt;
|
|
|
|
/** Detect free variable `global` from Node.js. */
|
|
var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
|
|
|
|
/** Detect free variable `self`. */
|
|
var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
|
|
|
|
/** Used as a reference to the global object. */
|
|
var root = freeGlobal || freeSelf || Function('return this')();
|
|
|
|
/** Detect free variable `exports`. */
|
|
var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
|
|
|
|
/** Detect free variable `module`. */
|
|
var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
|
|
|
|
/** Detect the popular CommonJS extension `module.exports`. */
|
|
var moduleExports = freeModule && freeModule.exports === freeExports;
|
|
|
|
/** Detect free variable `process` from Node.js. */
|
|
var freeProcess = moduleExports && freeGlobal.process;
|
|
|
|
/** Used to access faster Node.js helpers. */
|
|
var nodeUtil = (function() {
|
|
try {
|
|
// Use `util.types` for Node.js 10+.
|
|
var types = freeModule && freeModule.require && freeModule.require('util').types;
|
|
|
|
if (types) {
|
|
return types;
|
|
}
|
|
|
|
// Legacy `process.binding('util')` for Node.js < 10.
|
|
return freeProcess && freeProcess.binding && freeProcess.binding('util');
|
|
} catch (e) {}
|
|
}());
|
|
|
|
/* Node.js helper references. */
|
|
var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
|
|
nodeIsDate = nodeUtil && nodeUtil.isDate,
|
|
nodeIsMap = nodeUtil && nodeUtil.isMap,
|
|
nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
|
|
nodeIsSet = nodeUtil && nodeUtil.isSet,
|
|
nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* A faster alternative to `Function#apply`, this function invokes `func`
|
|
* with the `this` binding of `thisArg` and the arguments of `args`.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to invoke.
|
|
* @param {*} thisArg The `this` binding of `func`.
|
|
* @param {Array} args The arguments to invoke `func` with.
|
|
* @returns {*} Returns the result of `func`.
|
|
*/
|
|
function apply(func, thisArg, args) {
|
|
switch (args.length) {
|
|
case 0: return func.call(thisArg);
|
|
case 1: return func.call(thisArg, args[0]);
|
|
case 2: return func.call(thisArg, args[0], args[1]);
|
|
case 3: return func.call(thisArg, args[0], args[1], args[2]);
|
|
}
|
|
return func.apply(thisArg, args);
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseAggregator` for arrays.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} setter The function to set `accumulator` values.
|
|
* @param {Function} iteratee The iteratee to transform keys.
|
|
* @param {Object} accumulator The initial aggregated object.
|
|
* @returns {Function} Returns `accumulator`.
|
|
*/
|
|
function arrayAggregator(array, setter, iteratee, accumulator) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length;
|
|
|
|
while (++index < length) {
|
|
var value = array[index];
|
|
setter(accumulator, value, iteratee(value), array);
|
|
}
|
|
return accumulator;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.forEach` for arrays without support for
|
|
* iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function arrayEach(array, iteratee) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length;
|
|
|
|
while (++index < length) {
|
|
if (iteratee(array[index], index, array) === false) {
|
|
break;
|
|
}
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.forEachRight` for arrays without support for
|
|
* iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function arrayEachRight(array, iteratee) {
|
|
var length = array == null ? 0 : array.length;
|
|
|
|
while (length--) {
|
|
if (iteratee(array[length], length, array) === false) {
|
|
break;
|
|
}
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.every` for arrays without support for
|
|
* iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @returns {boolean} Returns `true` if all elements pass the predicate check,
|
|
* else `false`.
|
|
*/
|
|
function arrayEvery(array, predicate) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length;
|
|
|
|
while (++index < length) {
|
|
if (!predicate(array[index], index, array)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.filter` for arrays without support for
|
|
* iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @returns {Array} Returns the new filtered array.
|
|
*/
|
|
function arrayFilter(array, predicate) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length,
|
|
resIndex = 0,
|
|
result = [];
|
|
|
|
while (++index < length) {
|
|
var value = array[index];
|
|
if (predicate(value, index, array)) {
|
|
result[resIndex++] = value;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.includes` for arrays without support for
|
|
* specifying an index to search from.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to inspect.
|
|
* @param {*} target The value to search for.
|
|
* @returns {boolean} Returns `true` if `target` is found, else `false`.
|
|
*/
|
|
function arrayIncludes(array, value) {
|
|
var length = array == null ? 0 : array.length;
|
|
return !!length && baseIndexOf(array, value, 0) > -1;
|
|
}
|
|
|
|
/**
|
|
* This function is like `arrayIncludes` except that it accepts a comparator.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to inspect.
|
|
* @param {*} target The value to search for.
|
|
* @param {Function} comparator The comparator invoked per element.
|
|
* @returns {boolean} Returns `true` if `target` is found, else `false`.
|
|
*/
|
|
function arrayIncludesWith(array, value, comparator) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length;
|
|
|
|
while (++index < length) {
|
|
if (comparator(value, array[index])) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.map` for arrays without support for iteratee
|
|
* shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Array} Returns the new mapped array.
|
|
*/
|
|
function arrayMap(array, iteratee) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length,
|
|
result = Array(length);
|
|
|
|
while (++index < length) {
|
|
result[index] = iteratee(array[index], index, array);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Appends the elements of `values` to `array`.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to modify.
|
|
* @param {Array} values The values to append.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function arrayPush(array, values) {
|
|
var index = -1,
|
|
length = values.length,
|
|
offset = array.length;
|
|
|
|
while (++index < length) {
|
|
array[offset + index] = values[index];
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.reduce` for arrays without support for
|
|
* iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @param {*} [accumulator] The initial value.
|
|
* @param {boolean} [initAccum] Specify using the first element of `array` as
|
|
* the initial value.
|
|
* @returns {*} Returns the accumulated value.
|
|
*/
|
|
function arrayReduce(array, iteratee, accumulator, initAccum) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length;
|
|
|
|
if (initAccum && length) {
|
|
accumulator = array[++index];
|
|
}
|
|
while (++index < length) {
|
|
accumulator = iteratee(accumulator, array[index], index, array);
|
|
}
|
|
return accumulator;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.reduceRight` for arrays without support for
|
|
* iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @param {*} [accumulator] The initial value.
|
|
* @param {boolean} [initAccum] Specify using the last element of `array` as
|
|
* the initial value.
|
|
* @returns {*} Returns the accumulated value.
|
|
*/
|
|
function arrayReduceRight(array, iteratee, accumulator, initAccum) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (initAccum && length) {
|
|
accumulator = array[--length];
|
|
}
|
|
while (length--) {
|
|
accumulator = iteratee(accumulator, array[length], length, array);
|
|
}
|
|
return accumulator;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.some` for arrays without support for iteratee
|
|
* shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} [array] The array to iterate over.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @returns {boolean} Returns `true` if any element passes the predicate check,
|
|
* else `false`.
|
|
*/
|
|
function arraySome(array, predicate) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length;
|
|
|
|
while (++index < length) {
|
|
if (predicate(array[index], index, array)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Gets the size of an ASCII `string`.
|
|
*
|
|
* @private
|
|
* @param {string} string The string inspect.
|
|
* @returns {number} Returns the string size.
|
|
*/
|
|
var asciiSize = baseProperty('length');
|
|
|
|
/**
|
|
* Converts an ASCII `string` to an array.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to convert.
|
|
* @returns {Array} Returns the converted array.
|
|
*/
|
|
function asciiToArray(string) {
|
|
return string.split('');
|
|
}
|
|
|
|
/**
|
|
* Splits an ASCII `string` into an array of its words.
|
|
*
|
|
* @private
|
|
* @param {string} The string to inspect.
|
|
* @returns {Array} Returns the words of `string`.
|
|
*/
|
|
function asciiWords(string) {
|
|
return string.match(reAsciiWord) || [];
|
|
}
|
|
|
|
/**
|
|
* The base implementation of methods like `_.findKey` and `_.findLastKey`,
|
|
* without support for iteratee shorthands, which iterates over `collection`
|
|
* using `eachFunc`.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to inspect.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @param {Function} eachFunc The function to iterate over `collection`.
|
|
* @returns {*} Returns the found element or its key, else `undefined`.
|
|
*/
|
|
function baseFindKey(collection, predicate, eachFunc) {
|
|
var result;
|
|
eachFunc(collection, function(value, key, collection) {
|
|
if (predicate(value, key, collection)) {
|
|
result = key;
|
|
return false;
|
|
}
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.findIndex` and `_.findLastIndex` without
|
|
* support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @param {number} fromIndex The index to search from.
|
|
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
*/
|
|
function baseFindIndex(array, predicate, fromIndex, fromRight) {
|
|
var length = array.length,
|
|
index = fromIndex + (fromRight ? 1 : -1);
|
|
|
|
while ((fromRight ? index-- : ++index < length)) {
|
|
if (predicate(array[index], index, array)) {
|
|
return index;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.indexOf` without `fromIndex` bounds checks.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @param {number} fromIndex The index to search from.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
*/
|
|
function baseIndexOf(array, value, fromIndex) {
|
|
return value === value
|
|
? strictIndexOf(array, value, fromIndex)
|
|
: baseFindIndex(array, baseIsNaN, fromIndex);
|
|
}
|
|
|
|
/**
|
|
* This function is like `baseIndexOf` except that it accepts a comparator.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @param {number} fromIndex The index to search from.
|
|
* @param {Function} comparator The comparator invoked per element.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
*/
|
|
function baseIndexOfWith(array, value, fromIndex, comparator) {
|
|
var index = fromIndex - 1,
|
|
length = array.length;
|
|
|
|
while (++index < length) {
|
|
if (comparator(array[index], value)) {
|
|
return index;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isNaN` without support for number objects.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
|
|
*/
|
|
function baseIsNaN(value) {
|
|
return value !== value;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.mean` and `_.meanBy` without support for
|
|
* iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {number} Returns the mean.
|
|
*/
|
|
function baseMean(array, iteratee) {
|
|
var length = array == null ? 0 : array.length;
|
|
return length ? (baseSum(array, iteratee) / length) : NAN;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.property` without support for deep paths.
|
|
*
|
|
* @private
|
|
* @param {string} key The key of the property to get.
|
|
* @returns {Function} Returns the new accessor function.
|
|
*/
|
|
function baseProperty(key) {
|
|
return function(object) {
|
|
return object == null ? undefined : object[key];
|
|
};
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.propertyOf` without support for deep paths.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Function} Returns the new accessor function.
|
|
*/
|
|
function basePropertyOf(object) {
|
|
return function(key) {
|
|
return object == null ? undefined : object[key];
|
|
};
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.reduce` and `_.reduceRight`, without support
|
|
* for iteratee shorthands, which iterates over `collection` using `eachFunc`.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @param {*} accumulator The initial value.
|
|
* @param {boolean} initAccum Specify using the first or last element of
|
|
* `collection` as the initial value.
|
|
* @param {Function} eachFunc The function to iterate over `collection`.
|
|
* @returns {*} Returns the accumulated value.
|
|
*/
|
|
function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
|
|
eachFunc(collection, function(value, index, collection) {
|
|
accumulator = initAccum
|
|
? (initAccum = false, value)
|
|
: iteratee(accumulator, value, index, collection);
|
|
});
|
|
return accumulator;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.sortBy` which uses `comparer` to define the
|
|
* sort order of `array` and replaces criteria objects with their corresponding
|
|
* values.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to sort.
|
|
* @param {Function} comparer The function to define sort order.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function baseSortBy(array, comparer) {
|
|
var length = array.length;
|
|
|
|
array.sort(comparer);
|
|
while (length--) {
|
|
array[length] = array[length].value;
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.sum` and `_.sumBy` without support for
|
|
* iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {number} Returns the sum.
|
|
*/
|
|
function baseSum(array, iteratee) {
|
|
var result,
|
|
index = -1,
|
|
length = array.length;
|
|
|
|
while (++index < length) {
|
|
var current = iteratee(array[index]);
|
|
if (current !== undefined) {
|
|
result = result === undefined ? current : (result + current);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.times` without support for iteratee shorthands
|
|
* or max array length checks.
|
|
*
|
|
* @private
|
|
* @param {number} n The number of times to invoke `iteratee`.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Array} Returns the array of results.
|
|
*/
|
|
function baseTimes(n, iteratee) {
|
|
var index = -1,
|
|
result = Array(n);
|
|
|
|
while (++index < n) {
|
|
result[index] = iteratee(index);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
|
|
* of key-value pairs for `object` corresponding to the property names of `props`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {Array} props The property names to get values for.
|
|
* @returns {Object} Returns the key-value pairs.
|
|
*/
|
|
function baseToPairs(object, props) {
|
|
return arrayMap(props, function(key) {
|
|
return [key, object[key]];
|
|
});
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.unary` without support for storing metadata.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to cap arguments for.
|
|
* @returns {Function} Returns the new capped function.
|
|
*/
|
|
function baseUnary(func) {
|
|
return function(value) {
|
|
return func(value);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.values` and `_.valuesIn` which creates an
|
|
* array of `object` property values corresponding to the property names
|
|
* of `props`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {Array} props The property names to get values for.
|
|
* @returns {Object} Returns the array of property values.
|
|
*/
|
|
function baseValues(object, props) {
|
|
return arrayMap(props, function(key) {
|
|
return object[key];
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Checks if a `cache` value for `key` exists.
|
|
*
|
|
* @private
|
|
* @param {Object} cache The cache to query.
|
|
* @param {string} key The key of the entry to check.
|
|
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
|
|
*/
|
|
function cacheHas(cache, key) {
|
|
return cache.has(key);
|
|
}
|
|
|
|
/**
|
|
* Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
|
|
* that is not found in the character symbols.
|
|
*
|
|
* @private
|
|
* @param {Array} strSymbols The string symbols to inspect.
|
|
* @param {Array} chrSymbols The character symbols to find.
|
|
* @returns {number} Returns the index of the first unmatched string symbol.
|
|
*/
|
|
function charsStartIndex(strSymbols, chrSymbols) {
|
|
var index = -1,
|
|
length = strSymbols.length;
|
|
|
|
while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
|
|
return index;
|
|
}
|
|
|
|
/**
|
|
* Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
|
|
* that is not found in the character symbols.
|
|
*
|
|
* @private
|
|
* @param {Array} strSymbols The string symbols to inspect.
|
|
* @param {Array} chrSymbols The character symbols to find.
|
|
* @returns {number} Returns the index of the last unmatched string symbol.
|
|
*/
|
|
function charsEndIndex(strSymbols, chrSymbols) {
|
|
var index = strSymbols.length;
|
|
|
|
while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
|
|
return index;
|
|
}
|
|
|
|
/**
|
|
* Gets the number of `placeholder` occurrences in `array`.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} placeholder The placeholder to search for.
|
|
* @returns {number} Returns the placeholder count.
|
|
*/
|
|
function countHolders(array, placeholder) {
|
|
var length = array.length,
|
|
result = 0;
|
|
|
|
while (length--) {
|
|
if (array[length] === placeholder) {
|
|
++result;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
|
|
* letters to basic Latin letters.
|
|
*
|
|
* @private
|
|
* @param {string} letter The matched letter to deburr.
|
|
* @returns {string} Returns the deburred letter.
|
|
*/
|
|
var deburrLetter = basePropertyOf(deburredLetters);
|
|
|
|
/**
|
|
* Used by `_.escape` to convert characters to HTML entities.
|
|
*
|
|
* @private
|
|
* @param {string} chr The matched character to escape.
|
|
* @returns {string} Returns the escaped character.
|
|
*/
|
|
var escapeHtmlChar = basePropertyOf(htmlEscapes);
|
|
|
|
/**
|
|
* Used by `_.template` to escape characters for inclusion in compiled string literals.
|
|
*
|
|
* @private
|
|
* @param {string} chr The matched character to escape.
|
|
* @returns {string} Returns the escaped character.
|
|
*/
|
|
function escapeStringChar(chr) {
|
|
return '\\' + stringEscapes[chr];
|
|
}
|
|
|
|
/**
|
|
* Gets the value at `key` of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} [object] The object to query.
|
|
* @param {string} key The key of the property to get.
|
|
* @returns {*} Returns the property value.
|
|
*/
|
|
function getValue(object, key) {
|
|
return object == null ? undefined : object[key];
|
|
}
|
|
|
|
/**
|
|
* Checks if `string` contains Unicode symbols.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to inspect.
|
|
* @returns {boolean} Returns `true` if a symbol is found, else `false`.
|
|
*/
|
|
function hasUnicode(string) {
|
|
return reHasUnicode.test(string);
|
|
}
|
|
|
|
/**
|
|
* Checks if `string` contains a word composed of Unicode symbols.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to inspect.
|
|
* @returns {boolean} Returns `true` if a word is found, else `false`.
|
|
*/
|
|
function hasUnicodeWord(string) {
|
|
return reHasUnicodeWord.test(string);
|
|
}
|
|
|
|
/**
|
|
* Converts `iterator` to an array.
|
|
*
|
|
* @private
|
|
* @param {Object} iterator The iterator to convert.
|
|
* @returns {Array} Returns the converted array.
|
|
*/
|
|
function iteratorToArray(iterator) {
|
|
var data,
|
|
result = [];
|
|
|
|
while (!(data = iterator.next()).done) {
|
|
result.push(data.value);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Converts `map` to its key-value pairs.
|
|
*
|
|
* @private
|
|
* @param {Object} map The map to convert.
|
|
* @returns {Array} Returns the key-value pairs.
|
|
*/
|
|
function mapToArray(map) {
|
|
var index = -1,
|
|
result = Array(map.size);
|
|
|
|
map.forEach(function(value, key) {
|
|
result[++index] = [key, value];
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a unary function that invokes `func` with its argument transformed.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to wrap.
|
|
* @param {Function} transform The argument transform.
|
|
* @returns {Function} Returns the new function.
|
|
*/
|
|
function overArg(func, transform) {
|
|
return function(arg) {
|
|
return func(transform(arg));
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Replaces all `placeholder` elements in `array` with an internal placeholder
|
|
* and returns an array of their indexes.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to modify.
|
|
* @param {*} placeholder The placeholder to replace.
|
|
* @returns {Array} Returns the new array of placeholder indexes.
|
|
*/
|
|
function replaceHolders(array, placeholder) {
|
|
var index = -1,
|
|
length = array.length,
|
|
resIndex = 0,
|
|
result = [];
|
|
|
|
while (++index < length) {
|
|
var value = array[index];
|
|
if (value === placeholder || value === PLACEHOLDER) {
|
|
array[index] = PLACEHOLDER;
|
|
result[resIndex++] = index;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Converts `set` to an array of its values.
|
|
*
|
|
* @private
|
|
* @param {Object} set The set to convert.
|
|
* @returns {Array} Returns the values.
|
|
*/
|
|
function setToArray(set) {
|
|
var index = -1,
|
|
result = Array(set.size);
|
|
|
|
set.forEach(function(value) {
|
|
result[++index] = value;
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Converts `set` to its value-value pairs.
|
|
*
|
|
* @private
|
|
* @param {Object} set The set to convert.
|
|
* @returns {Array} Returns the value-value pairs.
|
|
*/
|
|
function setToPairs(set) {
|
|
var index = -1,
|
|
result = Array(set.size);
|
|
|
|
set.forEach(function(value) {
|
|
result[++index] = [value, value];
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.indexOf` which performs strict equality
|
|
* comparisons of values, i.e. `===`.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @param {number} fromIndex The index to search from.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
*/
|
|
function strictIndexOf(array, value, fromIndex) {
|
|
var index = fromIndex - 1,
|
|
length = array.length;
|
|
|
|
while (++index < length) {
|
|
if (array[index] === value) {
|
|
return index;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.lastIndexOf` which performs strict equality
|
|
* comparisons of values, i.e. `===`.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @param {number} fromIndex The index to search from.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
*/
|
|
function strictLastIndexOf(array, value, fromIndex) {
|
|
var index = fromIndex + 1;
|
|
while (index--) {
|
|
if (array[index] === value) {
|
|
return index;
|
|
}
|
|
}
|
|
return index;
|
|
}
|
|
|
|
/**
|
|
* Gets the number of symbols in `string`.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to inspect.
|
|
* @returns {number} Returns the string size.
|
|
*/
|
|
function stringSize(string) {
|
|
return hasUnicode(string)
|
|
? unicodeSize(string)
|
|
: asciiSize(string);
|
|
}
|
|
|
|
/**
|
|
* Converts `string` to an array.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to convert.
|
|
* @returns {Array} Returns the converted array.
|
|
*/
|
|
function stringToArray(string) {
|
|
return hasUnicode(string)
|
|
? unicodeToArray(string)
|
|
: asciiToArray(string);
|
|
}
|
|
|
|
/**
|
|
* Used by `_.unescape` to convert HTML entities to characters.
|
|
*
|
|
* @private
|
|
* @param {string} chr The matched character to unescape.
|
|
* @returns {string} Returns the unescaped character.
|
|
*/
|
|
var unescapeHtmlChar = basePropertyOf(htmlUnescapes);
|
|
|
|
/**
|
|
* Gets the size of a Unicode `string`.
|
|
*
|
|
* @private
|
|
* @param {string} string The string inspect.
|
|
* @returns {number} Returns the string size.
|
|
*/
|
|
function unicodeSize(string) {
|
|
var result = reUnicode.lastIndex = 0;
|
|
while (reUnicode.test(string)) {
|
|
++result;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Converts a Unicode `string` to an array.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to convert.
|
|
* @returns {Array} Returns the converted array.
|
|
*/
|
|
function unicodeToArray(string) {
|
|
return string.match(reUnicode) || [];
|
|
}
|
|
|
|
/**
|
|
* Splits a Unicode `string` into an array of its words.
|
|
*
|
|
* @private
|
|
* @param {string} The string to inspect.
|
|
* @returns {Array} Returns the words of `string`.
|
|
*/
|
|
function unicodeWords(string) {
|
|
return string.match(reUnicodeWord) || [];
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Create a new pristine `lodash` function using the `context` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.1.0
|
|
* @category Util
|
|
* @param {Object} [context=root] The context object.
|
|
* @returns {Function} Returns a new `lodash` function.
|
|
* @example
|
|
*
|
|
* _.mixin({ 'foo': _.constant('foo') });
|
|
*
|
|
* var lodash = _.runInContext();
|
|
* lodash.mixin({ 'bar': lodash.constant('bar') });
|
|
*
|
|
* _.isFunction(_.foo);
|
|
* // => true
|
|
* _.isFunction(_.bar);
|
|
* // => false
|
|
*
|
|
* lodash.isFunction(lodash.foo);
|
|
* // => false
|
|
* lodash.isFunction(lodash.bar);
|
|
* // => true
|
|
*
|
|
* // Create a suped-up `defer` in Node.js.
|
|
* var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
|
|
*/
|
|
var runInContext = (function runInContext(context) {
|
|
context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));
|
|
|
|
/** Built-in constructor references. */
|
|
var Array = context.Array,
|
|
Date = context.Date,
|
|
Error = context.Error,
|
|
Function = context.Function,
|
|
Math = context.Math,
|
|
Object = context.Object,
|
|
RegExp = context.RegExp,
|
|
String = context.String,
|
|
TypeError = context.TypeError;
|
|
|
|
/** Used for built-in method references. */
|
|
var arrayProto = Array.prototype,
|
|
funcProto = Function.prototype,
|
|
objectProto = Object.prototype;
|
|
|
|
/** Used to detect overreaching core-js shims. */
|
|
var coreJsData = context['__core-js_shared__'];
|
|
|
|
/** Used to resolve the decompiled source of functions. */
|
|
var funcToString = funcProto.toString;
|
|
|
|
/** Used to check objects for own properties. */
|
|
var hasOwnProperty = objectProto.hasOwnProperty;
|
|
|
|
/** Used to generate unique IDs. */
|
|
var idCounter = 0;
|
|
|
|
/** Used to detect methods masquerading as native. */
|
|
var maskSrcKey = (function() {
|
|
var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
|
|
return uid ? ('Symbol(src)_1.' + uid) : '';
|
|
}());
|
|
|
|
/**
|
|
* Used to resolve the
|
|
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
|
|
* of values.
|
|
*/
|
|
var nativeObjectToString = objectProto.toString;
|
|
|
|
/** Used to infer the `Object` constructor. */
|
|
var objectCtorString = funcToString.call(Object);
|
|
|
|
/** Used to restore the original `_` reference in `_.noConflict`. */
|
|
var oldDash = root._;
|
|
|
|
/** Used to detect if a method is native. */
|
|
var reIsNative = RegExp('^' +
|
|
funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
|
|
.replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
|
|
);
|
|
|
|
/** Built-in value references. */
|
|
var Buffer = moduleExports ? context.Buffer : undefined,
|
|
Symbol = context.Symbol,
|
|
Uint8Array = context.Uint8Array,
|
|
allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
|
|
getPrototype = overArg(Object.getPrototypeOf, Object),
|
|
objectCreate = Object.create,
|
|
propertyIsEnumerable = objectProto.propertyIsEnumerable,
|
|
splice = arrayProto.splice,
|
|
spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,
|
|
symIterator = Symbol ? Symbol.iterator : undefined,
|
|
symToStringTag = Symbol ? Symbol.toStringTag : undefined;
|
|
|
|
var defineProperty = (function() {
|
|
try {
|
|
var func = getNative(Object, 'defineProperty');
|
|
func({}, '', {});
|
|
return func;
|
|
} catch (e) {}
|
|
}());
|
|
|
|
/** Mocked built-ins. */
|
|
var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
|
|
ctxNow = Date && Date.now !== root.Date.now && Date.now,
|
|
ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;
|
|
|
|
/* Built-in method references for those with the same name as other `lodash` methods. */
|
|
var nativeCeil = Math.ceil,
|
|
nativeFloor = Math.floor,
|
|
nativeGetSymbols = Object.getOwnPropertySymbols,
|
|
nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
|
|
nativeIsFinite = context.isFinite,
|
|
nativeJoin = arrayProto.join,
|
|
nativeKeys = overArg(Object.keys, Object),
|
|
nativeMax = Math.max,
|
|
nativeMin = Math.min,
|
|
nativeNow = Date.now,
|
|
nativeParseInt = context.parseInt,
|
|
nativeRandom = Math.random,
|
|
nativeReverse = arrayProto.reverse;
|
|
|
|
/* Built-in method references that are verified to be native. */
|
|
var DataView = getNative(context, 'DataView'),
|
|
Map = getNative(context, 'Map'),
|
|
Promise = getNative(context, 'Promise'),
|
|
Set = getNative(context, 'Set'),
|
|
WeakMap = getNative(context, 'WeakMap'),
|
|
nativeCreate = getNative(Object, 'create');
|
|
|
|
/** Used to store function metadata. */
|
|
var metaMap = WeakMap && new WeakMap;
|
|
|
|
/** Used to lookup unminified function names. */
|
|
var realNames = {};
|
|
|
|
/** Used to detect maps, sets, and weakmaps. */
|
|
var dataViewCtorString = toSource(DataView),
|
|
mapCtorString = toSource(Map),
|
|
promiseCtorString = toSource(Promise),
|
|
setCtorString = toSource(Set),
|
|
weakMapCtorString = toSource(WeakMap);
|
|
|
|
/** Used to convert symbols to primitives and strings. */
|
|
var symbolProto = Symbol ? Symbol.prototype : undefined,
|
|
symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
|
|
symbolToString = symbolProto ? symbolProto.toString : undefined;
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates a `lodash` object which wraps `value` to enable implicit method
|
|
* chain sequences. Methods that operate on and return arrays, collections,
|
|
* and functions can be chained together. Methods that retrieve a single value
|
|
* or may return a primitive value will automatically end the chain sequence
|
|
* and return the unwrapped value. Otherwise, the value must be unwrapped
|
|
* with `_#value`.
|
|
*
|
|
* Explicit chain sequences, which must be unwrapped with `_#value`, may be
|
|
* enabled using `_.chain`.
|
|
*
|
|
* The execution of chained methods is lazy, that is, it's deferred until
|
|
* `_#value` is implicitly or explicitly called.
|
|
*
|
|
* Lazy evaluation allows several methods to support shortcut fusion.
|
|
* Shortcut fusion is an optimization to merge iteratee calls; this avoids
|
|
* the creation of intermediate arrays and can greatly reduce the number of
|
|
* iteratee executions. Sections of a chain sequence qualify for shortcut
|
|
* fusion if the section is applied to an array and iteratees accept only
|
|
* one argument. The heuristic for whether a section qualifies for shortcut
|
|
* fusion is subject to change.
|
|
*
|
|
* Chaining is supported in custom builds as long as the `_#value` method is
|
|
* directly or indirectly included in the build.
|
|
*
|
|
* In addition to lodash methods, wrappers have `Array` and `String` methods.
|
|
*
|
|
* The wrapper `Array` methods are:
|
|
* `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
|
|
*
|
|
* The wrapper `String` methods are:
|
|
* `replace` and `split`
|
|
*
|
|
* The wrapper methods that support shortcut fusion are:
|
|
* `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
|
|
* `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
|
|
* `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
|
|
*
|
|
* The chainable wrapper methods are:
|
|
* `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
|
|
* `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
|
|
* `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
|
|
* `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
|
|
* `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
|
|
* `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
|
|
* `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
|
|
* `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
|
|
* `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
|
|
* `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
|
|
* `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
|
|
* `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
|
|
* `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
|
|
* `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
|
|
* `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
|
|
* `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
|
|
* `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
|
|
* `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
|
|
* `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
|
|
* `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
|
|
* `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
|
|
* `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
|
|
* `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
|
|
* `zipObject`, `zipObjectDeep`, and `zipWith`
|
|
*
|
|
* The wrapper methods that are **not** chainable by default are:
|
|
* `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
|
|
* `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
|
|
* `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
|
|
* `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
|
|
* `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
|
|
* `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
|
|
* `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
|
|
* `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
|
|
* `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
|
|
* `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
|
|
* `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
|
|
* `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
|
|
* `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
|
|
* `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
|
|
* `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
|
|
* `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
|
|
* `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
|
|
* `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
|
|
* `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
|
|
* `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
|
|
* `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
|
|
* `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
|
|
* `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
|
|
* `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
|
|
* `upperFirst`, `value`, and `words`
|
|
*
|
|
* @name _
|
|
* @constructor
|
|
* @category Seq
|
|
* @param {*} value The value to wrap in a `lodash` instance.
|
|
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
* @example
|
|
*
|
|
* function square(n) {
|
|
* return n * n;
|
|
* }
|
|
*
|
|
* var wrapped = _([1, 2, 3]);
|
|
*
|
|
* // Returns an unwrapped value.
|
|
* wrapped.reduce(_.add);
|
|
* // => 6
|
|
*
|
|
* // Returns a wrapped value.
|
|
* var squares = wrapped.map(square);
|
|
*
|
|
* _.isArray(squares);
|
|
* // => false
|
|
*
|
|
* _.isArray(squares.value());
|
|
* // => true
|
|
*/
|
|
function lodash(value) {
|
|
if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
|
|
if (value instanceof LodashWrapper) {
|
|
return value;
|
|
}
|
|
if (hasOwnProperty.call(value, '__wrapped__')) {
|
|
return wrapperClone(value);
|
|
}
|
|
}
|
|
return new LodashWrapper(value);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.create` without support for assigning
|
|
* properties to the created object.
|
|
*
|
|
* @private
|
|
* @param {Object} proto The object to inherit from.
|
|
* @returns {Object} Returns the new object.
|
|
*/
|
|
var baseCreate = (function() {
|
|
function object() {}
|
|
return function(proto) {
|
|
if (!isObject(proto)) {
|
|
return {};
|
|
}
|
|
if (objectCreate) {
|
|
return objectCreate(proto);
|
|
}
|
|
object.prototype = proto;
|
|
var result = new object;
|
|
object.prototype = undefined;
|
|
return result;
|
|
};
|
|
}());
|
|
|
|
/**
|
|
* The function whose prototype chain sequence wrappers inherit from.
|
|
*
|
|
* @private
|
|
*/
|
|
function baseLodash() {
|
|
// No operation performed.
|
|
}
|
|
|
|
/**
|
|
* The base constructor for creating `lodash` wrapper objects.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to wrap.
|
|
* @param {boolean} [chainAll] Enable explicit method chain sequences.
|
|
*/
|
|
function LodashWrapper(value, chainAll) {
|
|
this.__wrapped__ = value;
|
|
this.__actions__ = [];
|
|
this.__chain__ = !!chainAll;
|
|
this.__index__ = 0;
|
|
this.__values__ = undefined;
|
|
}
|
|
|
|
/**
|
|
* By default, the template delimiters used by lodash are like those in
|
|
* embedded Ruby (ERB) as well as ES2015 template strings. Change the
|
|
* following template settings to use alternative delimiters.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @type {Object}
|
|
*/
|
|
lodash.templateSettings = {
|
|
|
|
/**
|
|
* Used to detect `data` property values to be HTML-escaped.
|
|
*
|
|
* @memberOf _.templateSettings
|
|
* @type {RegExp}
|
|
*/
|
|
'escape': reEscape,
|
|
|
|
/**
|
|
* Used to detect code to be evaluated.
|
|
*
|
|
* @memberOf _.templateSettings
|
|
* @type {RegExp}
|
|
*/
|
|
'evaluate': reEvaluate,
|
|
|
|
/**
|
|
* Used to detect `data` property values to inject.
|
|
*
|
|
* @memberOf _.templateSettings
|
|
* @type {RegExp}
|
|
*/
|
|
'interpolate': reInterpolate,
|
|
|
|
/**
|
|
* Used to reference the data object in the template text.
|
|
*
|
|
* @memberOf _.templateSettings
|
|
* @type {string}
|
|
*/
|
|
'variable': '',
|
|
|
|
/**
|
|
* Used to import variables into the compiled template.
|
|
*
|
|
* @memberOf _.templateSettings
|
|
* @type {Object}
|
|
*/
|
|
'imports': {
|
|
|
|
/**
|
|
* A reference to the `lodash` function.
|
|
*
|
|
* @memberOf _.templateSettings.imports
|
|
* @type {Function}
|
|
*/
|
|
'_': lodash
|
|
}
|
|
};
|
|
|
|
// Ensure wrappers are instances of `baseLodash`.
|
|
lodash.prototype = baseLodash.prototype;
|
|
lodash.prototype.constructor = lodash;
|
|
|
|
LodashWrapper.prototype = baseCreate(baseLodash.prototype);
|
|
LodashWrapper.prototype.constructor = LodashWrapper;
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
|
|
*
|
|
* @private
|
|
* @constructor
|
|
* @param {*} value The value to wrap.
|
|
*/
|
|
function LazyWrapper(value) {
|
|
this.__wrapped__ = value;
|
|
this.__actions__ = [];
|
|
this.__dir__ = 1;
|
|
this.__filtered__ = false;
|
|
this.__iteratees__ = [];
|
|
this.__takeCount__ = MAX_ARRAY_LENGTH;
|
|
this.__views__ = [];
|
|
}
|
|
|
|
/**
|
|
* Creates a clone of the lazy wrapper object.
|
|
*
|
|
* @private
|
|
* @name clone
|
|
* @memberOf LazyWrapper
|
|
* @returns {Object} Returns the cloned `LazyWrapper` object.
|
|
*/
|
|
function lazyClone() {
|
|
var result = new LazyWrapper(this.__wrapped__);
|
|
result.__actions__ = copyArray(this.__actions__);
|
|
result.__dir__ = this.__dir__;
|
|
result.__filtered__ = this.__filtered__;
|
|
result.__iteratees__ = copyArray(this.__iteratees__);
|
|
result.__takeCount__ = this.__takeCount__;
|
|
result.__views__ = copyArray(this.__views__);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Reverses the direction of lazy iteration.
|
|
*
|
|
* @private
|
|
* @name reverse
|
|
* @memberOf LazyWrapper
|
|
* @returns {Object} Returns the new reversed `LazyWrapper` object.
|
|
*/
|
|
function lazyReverse() {
|
|
if (this.__filtered__) {
|
|
var result = new LazyWrapper(this);
|
|
result.__dir__ = -1;
|
|
result.__filtered__ = true;
|
|
} else {
|
|
result = this.clone();
|
|
result.__dir__ *= -1;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Extracts the unwrapped value from its lazy wrapper.
|
|
*
|
|
* @private
|
|
* @name value
|
|
* @memberOf LazyWrapper
|
|
* @returns {*} Returns the unwrapped value.
|
|
*/
|
|
function lazyValue() {
|
|
var array = this.__wrapped__.value(),
|
|
dir = this.__dir__,
|
|
isArr = isArray(array),
|
|
isRight = dir < 0,
|
|
arrLength = isArr ? array.length : 0,
|
|
view = getView(0, arrLength, this.__views__),
|
|
start = view.start,
|
|
end = view.end,
|
|
length = end - start,
|
|
index = isRight ? end : (start - 1),
|
|
iteratees = this.__iteratees__,
|
|
iterLength = iteratees.length,
|
|
resIndex = 0,
|
|
takeCount = nativeMin(length, this.__takeCount__);
|
|
|
|
if (!isArr || (!isRight && arrLength == length && takeCount == length)) {
|
|
return baseWrapperValue(array, this.__actions__);
|
|
}
|
|
var result = [];
|
|
|
|
outer:
|
|
while (length-- && resIndex < takeCount) {
|
|
index += dir;
|
|
|
|
var iterIndex = -1,
|
|
value = array[index];
|
|
|
|
while (++iterIndex < iterLength) {
|
|
var data = iteratees[iterIndex],
|
|
iteratee = data.iteratee,
|
|
type = data.type,
|
|
computed = iteratee(value);
|
|
|
|
if (type == LAZY_MAP_FLAG) {
|
|
value = computed;
|
|
} else if (!computed) {
|
|
if (type == LAZY_FILTER_FLAG) {
|
|
continue outer;
|
|
} else {
|
|
break outer;
|
|
}
|
|
}
|
|
}
|
|
result[resIndex++] = value;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// Ensure `LazyWrapper` is an instance of `baseLodash`.
|
|
LazyWrapper.prototype = baseCreate(baseLodash.prototype);
|
|
LazyWrapper.prototype.constructor = LazyWrapper;
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates a hash object.
|
|
*
|
|
* @private
|
|
* @constructor
|
|
* @param {Array} [entries] The key-value pairs to cache.
|
|
*/
|
|
function Hash(entries) {
|
|
var index = -1,
|
|
length = entries == null ? 0 : entries.length;
|
|
|
|
this.clear();
|
|
while (++index < length) {
|
|
var entry = entries[index];
|
|
this.set(entry[0], entry[1]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes all key-value entries from the hash.
|
|
*
|
|
* @private
|
|
* @name clear
|
|
* @memberOf Hash
|
|
*/
|
|
function hashClear() {
|
|
this.__data__ = nativeCreate ? nativeCreate(null) : {};
|
|
this.size = 0;
|
|
}
|
|
|
|
/**
|
|
* Removes `key` and its value from the hash.
|
|
*
|
|
* @private
|
|
* @name delete
|
|
* @memberOf Hash
|
|
* @param {Object} hash The hash to modify.
|
|
* @param {string} key The key of the value to remove.
|
|
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
|
|
*/
|
|
function hashDelete(key) {
|
|
var result = this.has(key) && delete this.__data__[key];
|
|
this.size -= result ? 1 : 0;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Gets the hash value for `key`.
|
|
*
|
|
* @private
|
|
* @name get
|
|
* @memberOf Hash
|
|
* @param {string} key The key of the value to get.
|
|
* @returns {*} Returns the entry value.
|
|
*/
|
|
function hashGet(key) {
|
|
var data = this.__data__;
|
|
if (nativeCreate) {
|
|
var result = data[key];
|
|
return result === HASH_UNDEFINED ? undefined : result;
|
|
}
|
|
return hasOwnProperty.call(data, key) ? data[key] : undefined;
|
|
}
|
|
|
|
/**
|
|
* Checks if a hash value for `key` exists.
|
|
*
|
|
* @private
|
|
* @name has
|
|
* @memberOf Hash
|
|
* @param {string} key The key of the entry to check.
|
|
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
|
|
*/
|
|
function hashHas(key) {
|
|
var data = this.__data__;
|
|
return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
|
|
}
|
|
|
|
/**
|
|
* Sets the hash `key` to `value`.
|
|
*
|
|
* @private
|
|
* @name set
|
|
* @memberOf Hash
|
|
* @param {string} key The key of the value to set.
|
|
* @param {*} value The value to set.
|
|
* @returns {Object} Returns the hash instance.
|
|
*/
|
|
function hashSet(key, value) {
|
|
var data = this.__data__;
|
|
this.size += this.has(key) ? 0 : 1;
|
|
data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
|
|
return this;
|
|
}
|
|
|
|
// Add methods to `Hash`.
|
|
Hash.prototype.clear = hashClear;
|
|
Hash.prototype['delete'] = hashDelete;
|
|
Hash.prototype.get = hashGet;
|
|
Hash.prototype.has = hashHas;
|
|
Hash.prototype.set = hashSet;
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates an list cache object.
|
|
*
|
|
* @private
|
|
* @constructor
|
|
* @param {Array} [entries] The key-value pairs to cache.
|
|
*/
|
|
function ListCache(entries) {
|
|
var index = -1,
|
|
length = entries == null ? 0 : entries.length;
|
|
|
|
this.clear();
|
|
while (++index < length) {
|
|
var entry = entries[index];
|
|
this.set(entry[0], entry[1]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes all key-value entries from the list cache.
|
|
*
|
|
* @private
|
|
* @name clear
|
|
* @memberOf ListCache
|
|
*/
|
|
function listCacheClear() {
|
|
this.__data__ = [];
|
|
this.size = 0;
|
|
}
|
|
|
|
/**
|
|
* Removes `key` and its value from the list cache.
|
|
*
|
|
* @private
|
|
* @name delete
|
|
* @memberOf ListCache
|
|
* @param {string} key The key of the value to remove.
|
|
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
|
|
*/
|
|
function listCacheDelete(key) {
|
|
var data = this.__data__,
|
|
index = assocIndexOf(data, key);
|
|
|
|
if (index < 0) {
|
|
return false;
|
|
}
|
|
var lastIndex = data.length - 1;
|
|
if (index == lastIndex) {
|
|
data.pop();
|
|
} else {
|
|
splice.call(data, index, 1);
|
|
}
|
|
--this.size;
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Gets the list cache value for `key`.
|
|
*
|
|
* @private
|
|
* @name get
|
|
* @memberOf ListCache
|
|
* @param {string} key The key of the value to get.
|
|
* @returns {*} Returns the entry value.
|
|
*/
|
|
function listCacheGet(key) {
|
|
var data = this.__data__,
|
|
index = assocIndexOf(data, key);
|
|
|
|
return index < 0 ? undefined : data[index][1];
|
|
}
|
|
|
|
/**
|
|
* Checks if a list cache value for `key` exists.
|
|
*
|
|
* @private
|
|
* @name has
|
|
* @memberOf ListCache
|
|
* @param {string} key The key of the entry to check.
|
|
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
|
|
*/
|
|
function listCacheHas(key) {
|
|
return assocIndexOf(this.__data__, key) > -1;
|
|
}
|
|
|
|
/**
|
|
* Sets the list cache `key` to `value`.
|
|
*
|
|
* @private
|
|
* @name set
|
|
* @memberOf ListCache
|
|
* @param {string} key The key of the value to set.
|
|
* @param {*} value The value to set.
|
|
* @returns {Object} Returns the list cache instance.
|
|
*/
|
|
function listCacheSet(key, value) {
|
|
var data = this.__data__,
|
|
index = assocIndexOf(data, key);
|
|
|
|
if (index < 0) {
|
|
++this.size;
|
|
data.push([key, value]);
|
|
} else {
|
|
data[index][1] = value;
|
|
}
|
|
return this;
|
|
}
|
|
|
|
// Add methods to `ListCache`.
|
|
ListCache.prototype.clear = listCacheClear;
|
|
ListCache.prototype['delete'] = listCacheDelete;
|
|
ListCache.prototype.get = listCacheGet;
|
|
ListCache.prototype.has = listCacheHas;
|
|
ListCache.prototype.set = listCacheSet;
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates a map cache object to store key-value pairs.
|
|
*
|
|
* @private
|
|
* @constructor
|
|
* @param {Array} [entries] The key-value pairs to cache.
|
|
*/
|
|
function MapCache(entries) {
|
|
var index = -1,
|
|
length = entries == null ? 0 : entries.length;
|
|
|
|
this.clear();
|
|
while (++index < length) {
|
|
var entry = entries[index];
|
|
this.set(entry[0], entry[1]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes all key-value entries from the map.
|
|
*
|
|
* @private
|
|
* @name clear
|
|
* @memberOf MapCache
|
|
*/
|
|
function mapCacheClear() {
|
|
this.size = 0;
|
|
this.__data__ = {
|
|
'hash': new Hash,
|
|
'map': new (Map || ListCache),
|
|
'string': new Hash
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Removes `key` and its value from the map.
|
|
*
|
|
* @private
|
|
* @name delete
|
|
* @memberOf MapCache
|
|
* @param {string} key The key of the value to remove.
|
|
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
|
|
*/
|
|
function mapCacheDelete(key) {
|
|
var result = getMapData(this, key)['delete'](key);
|
|
this.size -= result ? 1 : 0;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Gets the map value for `key`.
|
|
*
|
|
* @private
|
|
* @name get
|
|
* @memberOf MapCache
|
|
* @param {string} key The key of the value to get.
|
|
* @returns {*} Returns the entry value.
|
|
*/
|
|
function mapCacheGet(key) {
|
|
return getMapData(this, key).get(key);
|
|
}
|
|
|
|
/**
|
|
* Checks if a map value for `key` exists.
|
|
*
|
|
* @private
|
|
* @name has
|
|
* @memberOf MapCache
|
|
* @param {string} key The key of the entry to check.
|
|
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
|
|
*/
|
|
function mapCacheHas(key) {
|
|
return getMapData(this, key).has(key);
|
|
}
|
|
|
|
/**
|
|
* Sets the map `key` to `value`.
|
|
*
|
|
* @private
|
|
* @name set
|
|
* @memberOf MapCache
|
|
* @param {string} key The key of the value to set.
|
|
* @param {*} value The value to set.
|
|
* @returns {Object} Returns the map cache instance.
|
|
*/
|
|
function mapCacheSet(key, value) {
|
|
var data = getMapData(this, key),
|
|
size = data.size;
|
|
|
|
data.set(key, value);
|
|
this.size += data.size == size ? 0 : 1;
|
|
return this;
|
|
}
|
|
|
|
// Add methods to `MapCache`.
|
|
MapCache.prototype.clear = mapCacheClear;
|
|
MapCache.prototype['delete'] = mapCacheDelete;
|
|
MapCache.prototype.get = mapCacheGet;
|
|
MapCache.prototype.has = mapCacheHas;
|
|
MapCache.prototype.set = mapCacheSet;
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
*
|
|
* Creates an array cache object to store unique values.
|
|
*
|
|
* @private
|
|
* @constructor
|
|
* @param {Array} [values] The values to cache.
|
|
*/
|
|
function SetCache(values) {
|
|
var index = -1,
|
|
length = values == null ? 0 : values.length;
|
|
|
|
this.__data__ = new MapCache;
|
|
while (++index < length) {
|
|
this.add(values[index]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds `value` to the array cache.
|
|
*
|
|
* @private
|
|
* @name add
|
|
* @memberOf SetCache
|
|
* @alias push
|
|
* @param {*} value The value to cache.
|
|
* @returns {Object} Returns the cache instance.
|
|
*/
|
|
function setCacheAdd(value) {
|
|
this.__data__.set(value, HASH_UNDEFINED);
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is in the array cache.
|
|
*
|
|
* @private
|
|
* @name has
|
|
* @memberOf SetCache
|
|
* @param {*} value The value to search for.
|
|
* @returns {number} Returns `true` if `value` is found, else `false`.
|
|
*/
|
|
function setCacheHas(value) {
|
|
return this.__data__.has(value);
|
|
}
|
|
|
|
// Add methods to `SetCache`.
|
|
SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
|
|
SetCache.prototype.has = setCacheHas;
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates a stack cache object to store key-value pairs.
|
|
*
|
|
* @private
|
|
* @constructor
|
|
* @param {Array} [entries] The key-value pairs to cache.
|
|
*/
|
|
function Stack(entries) {
|
|
var data = this.__data__ = new ListCache(entries);
|
|
this.size = data.size;
|
|
}
|
|
|
|
/**
|
|
* Removes all key-value entries from the stack.
|
|
*
|
|
* @private
|
|
* @name clear
|
|
* @memberOf Stack
|
|
*/
|
|
function stackClear() {
|
|
this.__data__ = new ListCache;
|
|
this.size = 0;
|
|
}
|
|
|
|
/**
|
|
* Removes `key` and its value from the stack.
|
|
*
|
|
* @private
|
|
* @name delete
|
|
* @memberOf Stack
|
|
* @param {string} key The key of the value to remove.
|
|
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
|
|
*/
|
|
function stackDelete(key) {
|
|
var data = this.__data__,
|
|
result = data['delete'](key);
|
|
|
|
this.size = data.size;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Gets the stack value for `key`.
|
|
*
|
|
* @private
|
|
* @name get
|
|
* @memberOf Stack
|
|
* @param {string} key The key of the value to get.
|
|
* @returns {*} Returns the entry value.
|
|
*/
|
|
function stackGet(key) {
|
|
return this.__data__.get(key);
|
|
}
|
|
|
|
/**
|
|
* Checks if a stack value for `key` exists.
|
|
*
|
|
* @private
|
|
* @name has
|
|
* @memberOf Stack
|
|
* @param {string} key The key of the entry to check.
|
|
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
|
|
*/
|
|
function stackHas(key) {
|
|
return this.__data__.has(key);
|
|
}
|
|
|
|
/**
|
|
* Sets the stack `key` to `value`.
|
|
*
|
|
* @private
|
|
* @name set
|
|
* @memberOf Stack
|
|
* @param {string} key The key of the value to set.
|
|
* @param {*} value The value to set.
|
|
* @returns {Object} Returns the stack cache instance.
|
|
*/
|
|
function stackSet(key, value) {
|
|
var data = this.__data__;
|
|
if (data instanceof ListCache) {
|
|
var pairs = data.__data__;
|
|
if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
|
|
pairs.push([key, value]);
|
|
this.size = ++data.size;
|
|
return this;
|
|
}
|
|
data = this.__data__ = new MapCache(pairs);
|
|
}
|
|
data.set(key, value);
|
|
this.size = data.size;
|
|
return this;
|
|
}
|
|
|
|
// Add methods to `Stack`.
|
|
Stack.prototype.clear = stackClear;
|
|
Stack.prototype['delete'] = stackDelete;
|
|
Stack.prototype.get = stackGet;
|
|
Stack.prototype.has = stackHas;
|
|
Stack.prototype.set = stackSet;
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates an array of the enumerable property names of the array-like `value`.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to query.
|
|
* @param {boolean} inherited Specify returning inherited property names.
|
|
* @returns {Array} Returns the array of property names.
|
|
*/
|
|
function arrayLikeKeys(value, inherited) {
|
|
var isArr = isArray(value),
|
|
isArg = !isArr && isArguments(value),
|
|
isBuff = !isArr && !isArg && isBuffer(value),
|
|
isType = !isArr && !isArg && !isBuff && isTypedArray(value),
|
|
skipIndexes = isArr || isArg || isBuff || isType,
|
|
result = skipIndexes ? baseTimes(value.length, String) : [],
|
|
length = result.length;
|
|
|
|
for (var key in value) {
|
|
if ((inherited || hasOwnProperty.call(value, key)) &&
|
|
!(skipIndexes && (
|
|
// Safari 9 has enumerable `arguments.length` in strict mode.
|
|
key == 'length' ||
|
|
// Node.js 0.10 has enumerable non-index properties on buffers.
|
|
(isBuff && (key == 'offset' || key == 'parent')) ||
|
|
// PhantomJS 2 has enumerable non-index properties on typed arrays.
|
|
(isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
|
|
// Skip index properties.
|
|
isIndex(key, length)
|
|
))) {
|
|
result.push(key);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.sample` for arrays.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to sample.
|
|
* @returns {*} Returns the random element.
|
|
*/
|
|
function arraySample(array) {
|
|
var length = array.length;
|
|
return length ? array[baseRandom(0, length - 1)] : undefined;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.sampleSize` for arrays.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to sample.
|
|
* @param {number} n The number of elements to sample.
|
|
* @returns {Array} Returns the random elements.
|
|
*/
|
|
function arraySampleSize(array, n) {
|
|
return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.shuffle` for arrays.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to shuffle.
|
|
* @returns {Array} Returns the new shuffled array.
|
|
*/
|
|
function arrayShuffle(array) {
|
|
return shuffleSelf(copyArray(array));
|
|
}
|
|
|
|
/**
|
|
* This function is like `assignValue` except that it doesn't assign
|
|
* `undefined` values.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to modify.
|
|
* @param {string} key The key of the property to assign.
|
|
* @param {*} value The value to assign.
|
|
*/
|
|
function assignMergeValue(object, key, value) {
|
|
if ((value !== undefined && !eq(object[key], value)) ||
|
|
(value === undefined && !(key in object))) {
|
|
baseAssignValue(object, key, value);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Assigns `value` to `key` of `object` if the existing value is not equivalent
|
|
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* for equality comparisons.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to modify.
|
|
* @param {string} key The key of the property to assign.
|
|
* @param {*} value The value to assign.
|
|
*/
|
|
function assignValue(object, key, value) {
|
|
var objValue = object[key];
|
|
if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
|
|
(value === undefined && !(key in object))) {
|
|
baseAssignValue(object, key, value);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the index at which the `key` is found in `array` of key-value pairs.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} key The key to search for.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
*/
|
|
function assocIndexOf(array, key) {
|
|
var length = array.length;
|
|
while (length--) {
|
|
if (eq(array[length][0], key)) {
|
|
return length;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* Aggregates elements of `collection` on `accumulator` with keys transformed
|
|
* by `iteratee` and values set by `setter`.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} setter The function to set `accumulator` values.
|
|
* @param {Function} iteratee The iteratee to transform keys.
|
|
* @param {Object} accumulator The initial aggregated object.
|
|
* @returns {Function} Returns `accumulator`.
|
|
*/
|
|
function baseAggregator(collection, setter, iteratee, accumulator) {
|
|
baseEach(collection, function(value, key, collection) {
|
|
setter(accumulator, value, iteratee(value), collection);
|
|
});
|
|
return accumulator;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.assign` without support for multiple sources
|
|
* or `customizer` functions.
|
|
*
|
|
* @private
|
|
* @param {Object} object The destination object.
|
|
* @param {Object} source The source object.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function baseAssign(object, source) {
|
|
return object && copyObject(source, keys(source), object);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.assignIn` without support for multiple sources
|
|
* or `customizer` functions.
|
|
*
|
|
* @private
|
|
* @param {Object} object The destination object.
|
|
* @param {Object} source The source object.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function baseAssignIn(object, source) {
|
|
return object && copyObject(source, keysIn(source), object);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `assignValue` and `assignMergeValue` without
|
|
* value checks.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to modify.
|
|
* @param {string} key The key of the property to assign.
|
|
* @param {*} value The value to assign.
|
|
*/
|
|
function baseAssignValue(object, key, value) {
|
|
if (key == '__proto__' && defineProperty) {
|
|
defineProperty(object, key, {
|
|
'configurable': true,
|
|
'enumerable': true,
|
|
'value': value,
|
|
'writable': true
|
|
});
|
|
} else {
|
|
object[key] = value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.at` without support for individual paths.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {string[]} paths The property paths to pick.
|
|
* @returns {Array} Returns the picked elements.
|
|
*/
|
|
function baseAt(object, paths) {
|
|
var index = -1,
|
|
length = paths.length,
|
|
result = Array(length),
|
|
skip = object == null;
|
|
|
|
while (++index < length) {
|
|
result[index] = skip ? undefined : get(object, paths[index]);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.clamp` which doesn't coerce arguments.
|
|
*
|
|
* @private
|
|
* @param {number} number The number to clamp.
|
|
* @param {number} [lower] The lower bound.
|
|
* @param {number} upper The upper bound.
|
|
* @returns {number} Returns the clamped number.
|
|
*/
|
|
function baseClamp(number, lower, upper) {
|
|
if (number === number) {
|
|
if (upper !== undefined) {
|
|
number = number <= upper ? number : upper;
|
|
}
|
|
if (lower !== undefined) {
|
|
number = number >= lower ? number : lower;
|
|
}
|
|
}
|
|
return number;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.clone` and `_.cloneDeep` which tracks
|
|
* traversed objects.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to clone.
|
|
* @param {boolean} bitmask The bitmask flags.
|
|
* 1 - Deep clone
|
|
* 2 - Flatten inherited properties
|
|
* 4 - Clone symbols
|
|
* @param {Function} [customizer] The function to customize cloning.
|
|
* @param {string} [key] The key of `value`.
|
|
* @param {Object} [object] The parent object of `value`.
|
|
* @param {Object} [stack] Tracks traversed objects and their clone counterparts.
|
|
* @returns {*} Returns the cloned value.
|
|
*/
|
|
function baseClone(value, bitmask, customizer, key, object, stack) {
|
|
var result,
|
|
isDeep = bitmask & CLONE_DEEP_FLAG,
|
|
isFlat = bitmask & CLONE_FLAT_FLAG,
|
|
isFull = bitmask & CLONE_SYMBOLS_FLAG;
|
|
|
|
if (customizer) {
|
|
result = object ? customizer(value, key, object, stack) : customizer(value);
|
|
}
|
|
if (result !== undefined) {
|
|
return result;
|
|
}
|
|
if (!isObject(value)) {
|
|
return value;
|
|
}
|
|
var isArr = isArray(value);
|
|
if (isArr) {
|
|
result = initCloneArray(value);
|
|
if (!isDeep) {
|
|
return copyArray(value, result);
|
|
}
|
|
} else {
|
|
var tag = getTag(value),
|
|
isFunc = tag == funcTag || tag == genTag;
|
|
|
|
if (isBuffer(value)) {
|
|
return cloneBuffer(value, isDeep);
|
|
}
|
|
if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
|
|
result = (isFlat || isFunc) ? {} : initCloneObject(value);
|
|
if (!isDeep) {
|
|
return isFlat
|
|
? copySymbolsIn(value, baseAssignIn(result, value))
|
|
: copySymbols(value, baseAssign(result, value));
|
|
}
|
|
} else {
|
|
if (!cloneableTags[tag]) {
|
|
return object ? value : {};
|
|
}
|
|
result = initCloneByTag(value, tag, isDeep);
|
|
}
|
|
}
|
|
// Check for circular references and return its corresponding clone.
|
|
stack || (stack = new Stack);
|
|
var stacked = stack.get(value);
|
|
if (stacked) {
|
|
return stacked;
|
|
}
|
|
stack.set(value, result);
|
|
|
|
if (isSet(value)) {
|
|
value.forEach(function(subValue) {
|
|
result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));
|
|
});
|
|
} else if (isMap(value)) {
|
|
value.forEach(function(subValue, key) {
|
|
result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));
|
|
});
|
|
}
|
|
|
|
var keysFunc = isFull
|
|
? (isFlat ? getAllKeysIn : getAllKeys)
|
|
: (isFlat ? keysIn : keys);
|
|
|
|
var props = isArr ? undefined : keysFunc(value);
|
|
arrayEach(props || value, function(subValue, key) {
|
|
if (props) {
|
|
key = subValue;
|
|
subValue = value[key];
|
|
}
|
|
// Recursively populate clone (susceptible to call stack limits).
|
|
assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.conforms` which doesn't clone `source`.
|
|
*
|
|
* @private
|
|
* @param {Object} source The object of property predicates to conform to.
|
|
* @returns {Function} Returns the new spec function.
|
|
*/
|
|
function baseConforms(source) {
|
|
var props = keys(source);
|
|
return function(object) {
|
|
return baseConformsTo(object, source, props);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.conformsTo` which accepts `props` to check.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to inspect.
|
|
* @param {Object} source The object of property predicates to conform to.
|
|
* @returns {boolean} Returns `true` if `object` conforms, else `false`.
|
|
*/
|
|
function baseConformsTo(object, source, props) {
|
|
var length = props.length;
|
|
if (object == null) {
|
|
return !length;
|
|
}
|
|
object = Object(object);
|
|
while (length--) {
|
|
var key = props[length],
|
|
predicate = source[key],
|
|
value = object[key];
|
|
|
|
if ((value === undefined && !(key in object)) || !predicate(value)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.delay` and `_.defer` which accepts `args`
|
|
* to provide to `func`.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to delay.
|
|
* @param {number} wait The number of milliseconds to delay invocation.
|
|
* @param {Array} args The arguments to provide to `func`.
|
|
* @returns {number|Object} Returns the timer id or timeout object.
|
|
*/
|
|
function baseDelay(func, wait, args) {
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
return setTimeout(function() { func.apply(undefined, args); }, wait);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of methods like `_.difference` without support
|
|
* for excluding multiple arrays or iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Array} values The values to exclude.
|
|
* @param {Function} [iteratee] The iteratee invoked per element.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
*/
|
|
function baseDifference(array, values, iteratee, comparator) {
|
|
var index = -1,
|
|
includes = arrayIncludes,
|
|
isCommon = true,
|
|
length = array.length,
|
|
result = [],
|
|
valuesLength = values.length;
|
|
|
|
if (!length) {
|
|
return result;
|
|
}
|
|
if (iteratee) {
|
|
values = arrayMap(values, baseUnary(iteratee));
|
|
}
|
|
if (comparator) {
|
|
includes = arrayIncludesWith;
|
|
isCommon = false;
|
|
}
|
|
else if (values.length >= LARGE_ARRAY_SIZE) {
|
|
includes = cacheHas;
|
|
isCommon = false;
|
|
values = new SetCache(values);
|
|
}
|
|
outer:
|
|
while (++index < length) {
|
|
var value = array[index],
|
|
computed = iteratee == null ? value : iteratee(value);
|
|
|
|
value = (comparator || value !== 0) ? value : 0;
|
|
if (isCommon && computed === computed) {
|
|
var valuesIndex = valuesLength;
|
|
while (valuesIndex--) {
|
|
if (values[valuesIndex] === computed) {
|
|
continue outer;
|
|
}
|
|
}
|
|
result.push(value);
|
|
}
|
|
else if (!includes(values, computed, comparator)) {
|
|
result.push(value);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.forEach` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Array|Object} Returns `collection`.
|
|
*/
|
|
var baseEach = createBaseEach(baseForOwn);
|
|
|
|
/**
|
|
* The base implementation of `_.forEachRight` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Array|Object} Returns `collection`.
|
|
*/
|
|
var baseEachRight = createBaseEach(baseForOwnRight, true);
|
|
|
|
/**
|
|
* The base implementation of `_.every` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @returns {boolean} Returns `true` if all elements pass the predicate check,
|
|
* else `false`
|
|
*/
|
|
function baseEvery(collection, predicate) {
|
|
var result = true;
|
|
baseEach(collection, function(value, index, collection) {
|
|
result = !!predicate(value, index, collection);
|
|
return result;
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of methods like `_.max` and `_.min` which accepts a
|
|
* `comparator` to determine the extremum value.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to iterate over.
|
|
* @param {Function} iteratee The iteratee invoked per iteration.
|
|
* @param {Function} comparator The comparator used to compare values.
|
|
* @returns {*} Returns the extremum value.
|
|
*/
|
|
function baseExtremum(array, iteratee, comparator) {
|
|
var index = -1,
|
|
length = array.length;
|
|
|
|
while (++index < length) {
|
|
var value = array[index],
|
|
current = iteratee(value);
|
|
|
|
if (current != null && (computed === undefined
|
|
? (current === current && !isSymbol(current))
|
|
: comparator(current, computed)
|
|
)) {
|
|
var computed = current,
|
|
result = value;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.fill` without an iteratee call guard.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to fill.
|
|
* @param {*} value The value to fill `array` with.
|
|
* @param {number} [start=0] The start position.
|
|
* @param {number} [end=array.length] The end position.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function baseFill(array, value, start, end) {
|
|
var length = array.length;
|
|
|
|
start = toInteger(start);
|
|
if (start < 0) {
|
|
start = -start > length ? 0 : (length + start);
|
|
}
|
|
end = (end === undefined || end > length) ? length : toInteger(end);
|
|
if (end < 0) {
|
|
end += length;
|
|
}
|
|
end = start > end ? 0 : toLength(end);
|
|
while (start < end) {
|
|
array[start++] = value;
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.filter` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @returns {Array} Returns the new filtered array.
|
|
*/
|
|
function baseFilter(collection, predicate) {
|
|
var result = [];
|
|
baseEach(collection, function(value, index, collection) {
|
|
if (predicate(value, index, collection)) {
|
|
result.push(value);
|
|
}
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.flatten` with support for restricting flattening.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to flatten.
|
|
* @param {number} depth The maximum recursion depth.
|
|
* @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
|
|
* @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
|
|
* @param {Array} [result=[]] The initial result value.
|
|
* @returns {Array} Returns the new flattened array.
|
|
*/
|
|
function baseFlatten(array, depth, predicate, isStrict, result) {
|
|
var index = -1,
|
|
length = array.length;
|
|
|
|
predicate || (predicate = isFlattenable);
|
|
result || (result = []);
|
|
|
|
while (++index < length) {
|
|
var value = array[index];
|
|
if (depth > 0 && predicate(value)) {
|
|
if (depth > 1) {
|
|
// Recursively flatten arrays (susceptible to call stack limits).
|
|
baseFlatten(value, depth - 1, predicate, isStrict, result);
|
|
} else {
|
|
arrayPush(result, value);
|
|
}
|
|
} else if (!isStrict) {
|
|
result[result.length] = value;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `baseForOwn` which iterates over `object`
|
|
* properties returned by `keysFunc` and invokes `iteratee` for each property.
|
|
* Iteratee functions may exit iteration early by explicitly returning `false`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @param {Function} keysFunc The function to get the keys of `object`.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
var baseFor = createBaseFor();
|
|
|
|
/**
|
|
* This function is like `baseFor` except that it iterates over properties
|
|
* in the opposite order.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @param {Function} keysFunc The function to get the keys of `object`.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
var baseForRight = createBaseFor(true);
|
|
|
|
/**
|
|
* The base implementation of `_.forOwn` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function baseForOwn(object, iteratee) {
|
|
return object && baseFor(object, iteratee, keys);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.forOwnRight` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function baseForOwnRight(object, iteratee) {
|
|
return object && baseForRight(object, iteratee, keys);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.functions` which creates an array of
|
|
* `object` function property names filtered from `props`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to inspect.
|
|
* @param {Array} props The property names to filter.
|
|
* @returns {Array} Returns the function names.
|
|
*/
|
|
function baseFunctions(object, props) {
|
|
return arrayFilter(props, function(key) {
|
|
return isFunction(object[key]);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.get` without support for default values.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path of the property to get.
|
|
* @returns {*} Returns the resolved value.
|
|
*/
|
|
function baseGet(object, path) {
|
|
path = castPath(path, object);
|
|
|
|
var index = 0,
|
|
length = path.length;
|
|
|
|
while (object != null && index < length) {
|
|
object = object[toKey(path[index++])];
|
|
}
|
|
return (index && index == length) ? object : undefined;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `getAllKeys` and `getAllKeysIn` which uses
|
|
* `keysFunc` and `symbolsFunc` to get the enumerable property names and
|
|
* symbols of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {Function} keysFunc The function to get the keys of `object`.
|
|
* @param {Function} symbolsFunc The function to get the symbols of `object`.
|
|
* @returns {Array} Returns the array of property names and symbols.
|
|
*/
|
|
function baseGetAllKeys(object, keysFunc, symbolsFunc) {
|
|
var result = keysFunc(object);
|
|
return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `getTag` without fallbacks for buggy environments.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to query.
|
|
* @returns {string} Returns the `toStringTag`.
|
|
*/
|
|
function baseGetTag(value) {
|
|
if (value == null) {
|
|
return value === undefined ? undefinedTag : nullTag;
|
|
}
|
|
return (symToStringTag && symToStringTag in Object(value))
|
|
? getRawTag(value)
|
|
: objectToString(value);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.gt` which doesn't coerce arguments.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if `value` is greater than `other`,
|
|
* else `false`.
|
|
*/
|
|
function baseGt(value, other) {
|
|
return value > other;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.has` without support for deep paths.
|
|
*
|
|
* @private
|
|
* @param {Object} [object] The object to query.
|
|
* @param {Array|string} key The key to check.
|
|
* @returns {boolean} Returns `true` if `key` exists, else `false`.
|
|
*/
|
|
function baseHas(object, key) {
|
|
return object != null && hasOwnProperty.call(object, key);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.hasIn` without support for deep paths.
|
|
*
|
|
* @private
|
|
* @param {Object} [object] The object to query.
|
|
* @param {Array|string} key The key to check.
|
|
* @returns {boolean} Returns `true` if `key` exists, else `false`.
|
|
*/
|
|
function baseHasIn(object, key) {
|
|
return object != null && key in Object(object);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.inRange` which doesn't coerce arguments.
|
|
*
|
|
* @private
|
|
* @param {number} number The number to check.
|
|
* @param {number} start The start of the range.
|
|
* @param {number} end The end of the range.
|
|
* @returns {boolean} Returns `true` if `number` is in the range, else `false`.
|
|
*/
|
|
function baseInRange(number, start, end) {
|
|
return number >= nativeMin(start, end) && number < nativeMax(start, end);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of methods like `_.intersection`, without support
|
|
* for iteratee shorthands, that accepts an array of arrays to inspect.
|
|
*
|
|
* @private
|
|
* @param {Array} arrays The arrays to inspect.
|
|
* @param {Function} [iteratee] The iteratee invoked per element.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new array of shared values.
|
|
*/
|
|
function baseIntersection(arrays, iteratee, comparator) {
|
|
var includes = comparator ? arrayIncludesWith : arrayIncludes,
|
|
length = arrays[0].length,
|
|
othLength = arrays.length,
|
|
othIndex = othLength,
|
|
caches = Array(othLength),
|
|
maxLength = Infinity,
|
|
result = [];
|
|
|
|
while (othIndex--) {
|
|
var array = arrays[othIndex];
|
|
if (othIndex && iteratee) {
|
|
array = arrayMap(array, baseUnary(iteratee));
|
|
}
|
|
maxLength = nativeMin(array.length, maxLength);
|
|
caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
|
|
? new SetCache(othIndex && array)
|
|
: undefined;
|
|
}
|
|
array = arrays[0];
|
|
|
|
var index = -1,
|
|
seen = caches[0];
|
|
|
|
outer:
|
|
while (++index < length && result.length < maxLength) {
|
|
var value = array[index],
|
|
computed = iteratee ? iteratee(value) : value;
|
|
|
|
value = (comparator || value !== 0) ? value : 0;
|
|
if (!(seen
|
|
? cacheHas(seen, computed)
|
|
: includes(result, computed, comparator)
|
|
)) {
|
|
othIndex = othLength;
|
|
while (--othIndex) {
|
|
var cache = caches[othIndex];
|
|
if (!(cache
|
|
? cacheHas(cache, computed)
|
|
: includes(arrays[othIndex], computed, comparator))
|
|
) {
|
|
continue outer;
|
|
}
|
|
}
|
|
if (seen) {
|
|
seen.push(computed);
|
|
}
|
|
result.push(value);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.invert` and `_.invertBy` which inverts
|
|
* `object` with values transformed by `iteratee` and set by `setter`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} setter The function to set `accumulator` values.
|
|
* @param {Function} iteratee The iteratee to transform values.
|
|
* @param {Object} accumulator The initial inverted object.
|
|
* @returns {Function} Returns `accumulator`.
|
|
*/
|
|
function baseInverter(object, setter, iteratee, accumulator) {
|
|
baseForOwn(object, function(value, key, object) {
|
|
setter(accumulator, iteratee(value), key, object);
|
|
});
|
|
return accumulator;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.invoke` without support for individual
|
|
* method arguments.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path of the method to invoke.
|
|
* @param {Array} args The arguments to invoke the method with.
|
|
* @returns {*} Returns the result of the invoked method.
|
|
*/
|
|
function baseInvoke(object, path, args) {
|
|
path = castPath(path, object);
|
|
object = parent(object, path);
|
|
var func = object == null ? object : object[toKey(last(path))];
|
|
return func == null ? undefined : apply(func, object, args);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isArguments`.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an `arguments` object,
|
|
*/
|
|
function baseIsArguments(value) {
|
|
return isObjectLike(value) && baseGetTag(value) == argsTag;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isArrayBuffer` without Node.js optimizations.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
|
|
*/
|
|
function baseIsArrayBuffer(value) {
|
|
return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isDate` without Node.js optimizations.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a date object, else `false`.
|
|
*/
|
|
function baseIsDate(value) {
|
|
return isObjectLike(value) && baseGetTag(value) == dateTag;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isEqual` which supports partial comparisons
|
|
* and tracks traversed objects.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @param {boolean} bitmask The bitmask flags.
|
|
* 1 - Unordered comparison
|
|
* 2 - Partial comparison
|
|
* @param {Function} [customizer] The function to customize comparisons.
|
|
* @param {Object} [stack] Tracks traversed `value` and `other` objects.
|
|
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
|
|
*/
|
|
function baseIsEqual(value, other, bitmask, customizer, stack) {
|
|
if (value === other) {
|
|
return true;
|
|
}
|
|
if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
|
|
return value !== value && other !== other;
|
|
}
|
|
return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseIsEqual` for arrays and objects which performs
|
|
* deep comparisons and tracks traversed objects enabling objects with circular
|
|
* references to be compared.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to compare.
|
|
* @param {Object} other The other object to compare.
|
|
* @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
|
|
* @param {Function} customizer The function to customize comparisons.
|
|
* @param {Function} equalFunc The function to determine equivalents of values.
|
|
* @param {Object} [stack] Tracks traversed `object` and `other` objects.
|
|
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
|
|
*/
|
|
function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
|
|
var objIsArr = isArray(object),
|
|
othIsArr = isArray(other),
|
|
objTag = objIsArr ? arrayTag : getTag(object),
|
|
othTag = othIsArr ? arrayTag : getTag(other);
|
|
|
|
objTag = objTag == argsTag ? objectTag : objTag;
|
|
othTag = othTag == argsTag ? objectTag : othTag;
|
|
|
|
var objIsObj = objTag == objectTag,
|
|
othIsObj = othTag == objectTag,
|
|
isSameTag = objTag == othTag;
|
|
|
|
if (isSameTag && isBuffer(object)) {
|
|
if (!isBuffer(other)) {
|
|
return false;
|
|
}
|
|
objIsArr = true;
|
|
objIsObj = false;
|
|
}
|
|
if (isSameTag && !objIsObj) {
|
|
stack || (stack = new Stack);
|
|
return (objIsArr || isTypedArray(object))
|
|
? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
|
|
: equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
|
|
}
|
|
if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
|
|
var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
|
|
othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
|
|
|
|
if (objIsWrapped || othIsWrapped) {
|
|
var objUnwrapped = objIsWrapped ? object.value() : object,
|
|
othUnwrapped = othIsWrapped ? other.value() : other;
|
|
|
|
stack || (stack = new Stack);
|
|
return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
|
|
}
|
|
}
|
|
if (!isSameTag) {
|
|
return false;
|
|
}
|
|
stack || (stack = new Stack);
|
|
return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isMap` without Node.js optimizations.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a map, else `false`.
|
|
*/
|
|
function baseIsMap(value) {
|
|
return isObjectLike(value) && getTag(value) == mapTag;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isMatch` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to inspect.
|
|
* @param {Object} source The object of property values to match.
|
|
* @param {Array} matchData The property names, values, and compare flags to match.
|
|
* @param {Function} [customizer] The function to customize comparisons.
|
|
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
|
|
*/
|
|
function baseIsMatch(object, source, matchData, customizer) {
|
|
var index = matchData.length,
|
|
length = index,
|
|
noCustomizer = !customizer;
|
|
|
|
if (object == null) {
|
|
return !length;
|
|
}
|
|
object = Object(object);
|
|
while (index--) {
|
|
var data = matchData[index];
|
|
if ((noCustomizer && data[2])
|
|
? data[1] !== object[data[0]]
|
|
: !(data[0] in object)
|
|
) {
|
|
return false;
|
|
}
|
|
}
|
|
while (++index < length) {
|
|
data = matchData[index];
|
|
var key = data[0],
|
|
objValue = object[key],
|
|
srcValue = data[1];
|
|
|
|
if (noCustomizer && data[2]) {
|
|
if (objValue === undefined && !(key in object)) {
|
|
return false;
|
|
}
|
|
} else {
|
|
var stack = new Stack;
|
|
if (customizer) {
|
|
var result = customizer(objValue, srcValue, key, object, source, stack);
|
|
}
|
|
if (!(result === undefined
|
|
? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
|
|
: result
|
|
)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isNative` without bad shim checks.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a native function,
|
|
* else `false`.
|
|
*/
|
|
function baseIsNative(value) {
|
|
if (!isObject(value) || isMasked(value)) {
|
|
return false;
|
|
}
|
|
var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
|
|
return pattern.test(toSource(value));
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isRegExp` without Node.js optimizations.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
|
|
*/
|
|
function baseIsRegExp(value) {
|
|
return isObjectLike(value) && baseGetTag(value) == regexpTag;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isSet` without Node.js optimizations.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a set, else `false`.
|
|
*/
|
|
function baseIsSet(value) {
|
|
return isObjectLike(value) && getTag(value) == setTag;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.isTypedArray` without Node.js optimizations.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
|
|
*/
|
|
function baseIsTypedArray(value) {
|
|
return isObjectLike(value) &&
|
|
isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.iteratee`.
|
|
*
|
|
* @private
|
|
* @param {*} [value=_.identity] The value to convert to an iteratee.
|
|
* @returns {Function} Returns the iteratee.
|
|
*/
|
|
function baseIteratee(value) {
|
|
// Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
|
|
// See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
|
|
if (typeof value == 'function') {
|
|
return value;
|
|
}
|
|
if (value == null) {
|
|
return identity;
|
|
}
|
|
if (typeof value == 'object') {
|
|
return isArray(value)
|
|
? baseMatchesProperty(value[0], value[1])
|
|
: baseMatches(value);
|
|
}
|
|
return property(value);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property names.
|
|
*/
|
|
function baseKeys(object) {
|
|
if (!isPrototype(object)) {
|
|
return nativeKeys(object);
|
|
}
|
|
var result = [];
|
|
for (var key in Object(object)) {
|
|
if (hasOwnProperty.call(object, key) && key != 'constructor') {
|
|
result.push(key);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property names.
|
|
*/
|
|
function baseKeysIn(object) {
|
|
if (!isObject(object)) {
|
|
return nativeKeysIn(object);
|
|
}
|
|
var isProto = isPrototype(object),
|
|
result = [];
|
|
|
|
for (var key in object) {
|
|
if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
|
|
result.push(key);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.lt` which doesn't coerce arguments.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if `value` is less than `other`,
|
|
* else `false`.
|
|
*/
|
|
function baseLt(value, other) {
|
|
return value < other;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.map` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} iteratee The function invoked per iteration.
|
|
* @returns {Array} Returns the new mapped array.
|
|
*/
|
|
function baseMap(collection, iteratee) {
|
|
var index = -1,
|
|
result = isArrayLike(collection) ? Array(collection.length) : [];
|
|
|
|
baseEach(collection, function(value, key, collection) {
|
|
result[++index] = iteratee(value, key, collection);
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.matches` which doesn't clone `source`.
|
|
*
|
|
* @private
|
|
* @param {Object} source The object of property values to match.
|
|
* @returns {Function} Returns the new spec function.
|
|
*/
|
|
function baseMatches(source) {
|
|
var matchData = getMatchData(source);
|
|
if (matchData.length == 1 && matchData[0][2]) {
|
|
return matchesStrictComparable(matchData[0][0], matchData[0][1]);
|
|
}
|
|
return function(object) {
|
|
return object === source || baseIsMatch(object, source, matchData);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
|
|
*
|
|
* @private
|
|
* @param {string} path The path of the property to get.
|
|
* @param {*} srcValue The value to match.
|
|
* @returns {Function} Returns the new spec function.
|
|
*/
|
|
function baseMatchesProperty(path, srcValue) {
|
|
if (isKey(path) && isStrictComparable(srcValue)) {
|
|
return matchesStrictComparable(toKey(path), srcValue);
|
|
}
|
|
return function(object) {
|
|
var objValue = get(object, path);
|
|
return (objValue === undefined && objValue === srcValue)
|
|
? hasIn(object, path)
|
|
: baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.merge` without support for multiple sources.
|
|
*
|
|
* @private
|
|
* @param {Object} object The destination object.
|
|
* @param {Object} source The source object.
|
|
* @param {number} srcIndex The index of `source`.
|
|
* @param {Function} [customizer] The function to customize merged values.
|
|
* @param {Object} [stack] Tracks traversed source values and their merged
|
|
* counterparts.
|
|
*/
|
|
function baseMerge(object, source, srcIndex, customizer, stack) {
|
|
if (object === source) {
|
|
return;
|
|
}
|
|
baseFor(source, function(srcValue, key) {
|
|
stack || (stack = new Stack);
|
|
if (isObject(srcValue)) {
|
|
baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
|
|
}
|
|
else {
|
|
var newValue = customizer
|
|
? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
|
|
: undefined;
|
|
|
|
if (newValue === undefined) {
|
|
newValue = srcValue;
|
|
}
|
|
assignMergeValue(object, key, newValue);
|
|
}
|
|
}, keysIn);
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseMerge` for arrays and objects which performs
|
|
* deep merges and tracks traversed objects enabling objects with circular
|
|
* references to be merged.
|
|
*
|
|
* @private
|
|
* @param {Object} object The destination object.
|
|
* @param {Object} source The source object.
|
|
* @param {string} key The key of the value to merge.
|
|
* @param {number} srcIndex The index of `source`.
|
|
* @param {Function} mergeFunc The function to merge values.
|
|
* @param {Function} [customizer] The function to customize assigned values.
|
|
* @param {Object} [stack] Tracks traversed source values and their merged
|
|
* counterparts.
|
|
*/
|
|
function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
|
|
var objValue = safeGet(object, key),
|
|
srcValue = safeGet(source, key),
|
|
stacked = stack.get(srcValue);
|
|
|
|
if (stacked) {
|
|
assignMergeValue(object, key, stacked);
|
|
return;
|
|
}
|
|
var newValue = customizer
|
|
? customizer(objValue, srcValue, (key + ''), object, source, stack)
|
|
: undefined;
|
|
|
|
var isCommon = newValue === undefined;
|
|
|
|
if (isCommon) {
|
|
var isArr = isArray(srcValue),
|
|
isBuff = !isArr && isBuffer(srcValue),
|
|
isTyped = !isArr && !isBuff && isTypedArray(srcValue);
|
|
|
|
newValue = srcValue;
|
|
if (isArr || isBuff || isTyped) {
|
|
if (isArray(objValue)) {
|
|
newValue = objValue;
|
|
}
|
|
else if (isArrayLikeObject(objValue)) {
|
|
newValue = copyArray(objValue);
|
|
}
|
|
else if (isBuff) {
|
|
isCommon = false;
|
|
newValue = cloneBuffer(srcValue, true);
|
|
}
|
|
else if (isTyped) {
|
|
isCommon = false;
|
|
newValue = cloneTypedArray(srcValue, true);
|
|
}
|
|
else {
|
|
newValue = [];
|
|
}
|
|
}
|
|
else if (isPlainObject(srcValue) || isArguments(srcValue)) {
|
|
newValue = objValue;
|
|
if (isArguments(objValue)) {
|
|
newValue = toPlainObject(objValue);
|
|
}
|
|
else if (!isObject(objValue) || isFunction(objValue)) {
|
|
newValue = initCloneObject(srcValue);
|
|
}
|
|
}
|
|
else {
|
|
isCommon = false;
|
|
}
|
|
}
|
|
if (isCommon) {
|
|
// Recursively merge objects and arrays (susceptible to call stack limits).
|
|
stack.set(srcValue, newValue);
|
|
mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
|
|
stack['delete'](srcValue);
|
|
}
|
|
assignMergeValue(object, key, newValue);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.nth` which doesn't coerce arguments.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to query.
|
|
* @param {number} n The index of the element to return.
|
|
* @returns {*} Returns the nth element of `array`.
|
|
*/
|
|
function baseNth(array, n) {
|
|
var length = array.length;
|
|
if (!length) {
|
|
return;
|
|
}
|
|
n += n < 0 ? length : 0;
|
|
return isIndex(n, length) ? array[n] : undefined;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.orderBy` without param guards.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
|
|
* @param {string[]} orders The sort orders of `iteratees`.
|
|
* @returns {Array} Returns the new sorted array.
|
|
*/
|
|
function baseOrderBy(collection, iteratees, orders) {
|
|
if (iteratees.length) {
|
|
iteratees = arrayMap(iteratees, function(iteratee) {
|
|
if (isArray(iteratee)) {
|
|
return function(value) {
|
|
return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);
|
|
}
|
|
}
|
|
return iteratee;
|
|
});
|
|
} else {
|
|
iteratees = [identity];
|
|
}
|
|
|
|
var index = -1;
|
|
iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
|
|
|
|
var result = baseMap(collection, function(value, key, collection) {
|
|
var criteria = arrayMap(iteratees, function(iteratee) {
|
|
return iteratee(value);
|
|
});
|
|
return { 'criteria': criteria, 'index': ++index, 'value': value };
|
|
});
|
|
|
|
return baseSortBy(result, function(object, other) {
|
|
return compareMultiple(object, other, orders);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.pick` without support for individual
|
|
* property identifiers.
|
|
*
|
|
* @private
|
|
* @param {Object} object The source object.
|
|
* @param {string[]} paths The property paths to pick.
|
|
* @returns {Object} Returns the new object.
|
|
*/
|
|
function basePick(object, paths) {
|
|
return basePickBy(object, paths, function(value, path) {
|
|
return hasIn(object, path);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.pickBy` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Object} object The source object.
|
|
* @param {string[]} paths The property paths to pick.
|
|
* @param {Function} predicate The function invoked per property.
|
|
* @returns {Object} Returns the new object.
|
|
*/
|
|
function basePickBy(object, paths, predicate) {
|
|
var index = -1,
|
|
length = paths.length,
|
|
result = {};
|
|
|
|
while (++index < length) {
|
|
var path = paths[index],
|
|
value = baseGet(object, path);
|
|
|
|
if (predicate(value, path)) {
|
|
baseSet(result, castPath(path, object), value);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseProperty` which supports deep paths.
|
|
*
|
|
* @private
|
|
* @param {Array|string} path The path of the property to get.
|
|
* @returns {Function} Returns the new accessor function.
|
|
*/
|
|
function basePropertyDeep(path) {
|
|
return function(object) {
|
|
return baseGet(object, path);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.pullAllBy` without support for iteratee
|
|
* shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to modify.
|
|
* @param {Array} values The values to remove.
|
|
* @param {Function} [iteratee] The iteratee invoked per element.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function basePullAll(array, values, iteratee, comparator) {
|
|
var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
|
|
index = -1,
|
|
length = values.length,
|
|
seen = array;
|
|
|
|
if (array === values) {
|
|
values = copyArray(values);
|
|
}
|
|
if (iteratee) {
|
|
seen = arrayMap(array, baseUnary(iteratee));
|
|
}
|
|
while (++index < length) {
|
|
var fromIndex = 0,
|
|
value = values[index],
|
|
computed = iteratee ? iteratee(value) : value;
|
|
|
|
while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
|
|
if (seen !== array) {
|
|
splice.call(seen, fromIndex, 1);
|
|
}
|
|
splice.call(array, fromIndex, 1);
|
|
}
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.pullAt` without support for individual
|
|
* indexes or capturing the removed elements.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to modify.
|
|
* @param {number[]} indexes The indexes of elements to remove.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function basePullAt(array, indexes) {
|
|
var length = array ? indexes.length : 0,
|
|
lastIndex = length - 1;
|
|
|
|
while (length--) {
|
|
var index = indexes[length];
|
|
if (length == lastIndex || index !== previous) {
|
|
var previous = index;
|
|
if (isIndex(index)) {
|
|
splice.call(array, index, 1);
|
|
} else {
|
|
baseUnset(array, index);
|
|
}
|
|
}
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.random` without support for returning
|
|
* floating-point numbers.
|
|
*
|
|
* @private
|
|
* @param {number} lower The lower bound.
|
|
* @param {number} upper The upper bound.
|
|
* @returns {number} Returns the random number.
|
|
*/
|
|
function baseRandom(lower, upper) {
|
|
return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.range` and `_.rangeRight` which doesn't
|
|
* coerce arguments.
|
|
*
|
|
* @private
|
|
* @param {number} start The start of the range.
|
|
* @param {number} end The end of the range.
|
|
* @param {number} step The value to increment or decrement by.
|
|
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
* @returns {Array} Returns the range of numbers.
|
|
*/
|
|
function baseRange(start, end, step, fromRight) {
|
|
var index = -1,
|
|
length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
|
|
result = Array(length);
|
|
|
|
while (length--) {
|
|
result[fromRight ? length : ++index] = start;
|
|
start += step;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.repeat` which doesn't coerce arguments.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to repeat.
|
|
* @param {number} n The number of times to repeat the string.
|
|
* @returns {string} Returns the repeated string.
|
|
*/
|
|
function baseRepeat(string, n) {
|
|
var result = '';
|
|
if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
|
|
return result;
|
|
}
|
|
// Leverage the exponentiation by squaring algorithm for a faster repeat.
|
|
// See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
|
|
do {
|
|
if (n % 2) {
|
|
result += string;
|
|
}
|
|
n = nativeFloor(n / 2);
|
|
if (n) {
|
|
string += string;
|
|
}
|
|
} while (n);
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.rest` which doesn't validate or coerce arguments.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to apply a rest parameter to.
|
|
* @param {number} [start=func.length-1] The start position of the rest parameter.
|
|
* @returns {Function} Returns the new function.
|
|
*/
|
|
function baseRest(func, start) {
|
|
return setToString(overRest(func, start, identity), func + '');
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.sample`.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to sample.
|
|
* @returns {*} Returns the random element.
|
|
*/
|
|
function baseSample(collection) {
|
|
return arraySample(values(collection));
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.sampleSize` without param guards.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to sample.
|
|
* @param {number} n The number of elements to sample.
|
|
* @returns {Array} Returns the random elements.
|
|
*/
|
|
function baseSampleSize(collection, n) {
|
|
var array = values(collection);
|
|
return shuffleSelf(array, baseClamp(n, 0, array.length));
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.set`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to modify.
|
|
* @param {Array|string} path The path of the property to set.
|
|
* @param {*} value The value to set.
|
|
* @param {Function} [customizer] The function to customize path creation.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function baseSet(object, path, value, customizer) {
|
|
if (!isObject(object)) {
|
|
return object;
|
|
}
|
|
path = castPath(path, object);
|
|
|
|
var index = -1,
|
|
length = path.length,
|
|
lastIndex = length - 1,
|
|
nested = object;
|
|
|
|
while (nested != null && ++index < length) {
|
|
var key = toKey(path[index]),
|
|
newValue = value;
|
|
|
|
if (key === '__proto__' || key === 'constructor' || key === 'prototype') {
|
|
return object;
|
|
}
|
|
|
|
if (index != lastIndex) {
|
|
var objValue = nested[key];
|
|
newValue = customizer ? customizer(objValue, key, nested) : undefined;
|
|
if (newValue === undefined) {
|
|
newValue = isObject(objValue)
|
|
? objValue
|
|
: (isIndex(path[index + 1]) ? [] : {});
|
|
}
|
|
}
|
|
assignValue(nested, key, newValue);
|
|
nested = nested[key];
|
|
}
|
|
return object;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `setData` without support for hot loop shorting.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to associate metadata with.
|
|
* @param {*} data The metadata.
|
|
* @returns {Function} Returns `func`.
|
|
*/
|
|
var baseSetData = !metaMap ? identity : function(func, data) {
|
|
metaMap.set(func, data);
|
|
return func;
|
|
};
|
|
|
|
/**
|
|
* The base implementation of `setToString` without support for hot loop shorting.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to modify.
|
|
* @param {Function} string The `toString` result.
|
|
* @returns {Function} Returns `func`.
|
|
*/
|
|
var baseSetToString = !defineProperty ? identity : function(func, string) {
|
|
return defineProperty(func, 'toString', {
|
|
'configurable': true,
|
|
'enumerable': false,
|
|
'value': constant(string),
|
|
'writable': true
|
|
});
|
|
};
|
|
|
|
/**
|
|
* The base implementation of `_.shuffle`.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to shuffle.
|
|
* @returns {Array} Returns the new shuffled array.
|
|
*/
|
|
function baseShuffle(collection) {
|
|
return shuffleSelf(values(collection));
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.slice` without an iteratee call guard.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to slice.
|
|
* @param {number} [start=0] The start position.
|
|
* @param {number} [end=array.length] The end position.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
*/
|
|
function baseSlice(array, start, end) {
|
|
var index = -1,
|
|
length = array.length;
|
|
|
|
if (start < 0) {
|
|
start = -start > length ? 0 : (length + start);
|
|
}
|
|
end = end > length ? length : end;
|
|
if (end < 0) {
|
|
end += length;
|
|
}
|
|
length = start > end ? 0 : ((end - start) >>> 0);
|
|
start >>>= 0;
|
|
|
|
var result = Array(length);
|
|
while (++index < length) {
|
|
result[index] = array[index + start];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.some` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @returns {boolean} Returns `true` if any element passes the predicate check,
|
|
* else `false`.
|
|
*/
|
|
function baseSome(collection, predicate) {
|
|
var result;
|
|
|
|
baseEach(collection, function(value, index, collection) {
|
|
result = predicate(value, index, collection);
|
|
return !result;
|
|
});
|
|
return !!result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
|
|
* performs a binary search of `array` to determine the index at which `value`
|
|
* should be inserted into `array` in order to maintain its sort order.
|
|
*
|
|
* @private
|
|
* @param {Array} array The sorted array to inspect.
|
|
* @param {*} value The value to evaluate.
|
|
* @param {boolean} [retHighest] Specify returning the highest qualified index.
|
|
* @returns {number} Returns the index at which `value` should be inserted
|
|
* into `array`.
|
|
*/
|
|
function baseSortedIndex(array, value, retHighest) {
|
|
var low = 0,
|
|
high = array == null ? low : array.length;
|
|
|
|
if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
|
|
while (low < high) {
|
|
var mid = (low + high) >>> 1,
|
|
computed = array[mid];
|
|
|
|
if (computed !== null && !isSymbol(computed) &&
|
|
(retHighest ? (computed <= value) : (computed < value))) {
|
|
low = mid + 1;
|
|
} else {
|
|
high = mid;
|
|
}
|
|
}
|
|
return high;
|
|
}
|
|
return baseSortedIndexBy(array, value, identity, retHighest);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
|
|
* which invokes `iteratee` for `value` and each element of `array` to compute
|
|
* their sort ranking. The iteratee is invoked with one argument; (value).
|
|
*
|
|
* @private
|
|
* @param {Array} array The sorted array to inspect.
|
|
* @param {*} value The value to evaluate.
|
|
* @param {Function} iteratee The iteratee invoked per element.
|
|
* @param {boolean} [retHighest] Specify returning the highest qualified index.
|
|
* @returns {number} Returns the index at which `value` should be inserted
|
|
* into `array`.
|
|
*/
|
|
function baseSortedIndexBy(array, value, iteratee, retHighest) {
|
|
var low = 0,
|
|
high = array == null ? 0 : array.length;
|
|
if (high === 0) {
|
|
return 0;
|
|
}
|
|
|
|
value = iteratee(value);
|
|
var valIsNaN = value !== value,
|
|
valIsNull = value === null,
|
|
valIsSymbol = isSymbol(value),
|
|
valIsUndefined = value === undefined;
|
|
|
|
while (low < high) {
|
|
var mid = nativeFloor((low + high) / 2),
|
|
computed = iteratee(array[mid]),
|
|
othIsDefined = computed !== undefined,
|
|
othIsNull = computed === null,
|
|
othIsReflexive = computed === computed,
|
|
othIsSymbol = isSymbol(computed);
|
|
|
|
if (valIsNaN) {
|
|
var setLow = retHighest || othIsReflexive;
|
|
} else if (valIsUndefined) {
|
|
setLow = othIsReflexive && (retHighest || othIsDefined);
|
|
} else if (valIsNull) {
|
|
setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
|
|
} else if (valIsSymbol) {
|
|
setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
|
|
} else if (othIsNull || othIsSymbol) {
|
|
setLow = false;
|
|
} else {
|
|
setLow = retHighest ? (computed <= value) : (computed < value);
|
|
}
|
|
if (setLow) {
|
|
low = mid + 1;
|
|
} else {
|
|
high = mid;
|
|
}
|
|
}
|
|
return nativeMin(high, MAX_ARRAY_INDEX);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
|
|
* support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Function} [iteratee] The iteratee invoked per element.
|
|
* @returns {Array} Returns the new duplicate free array.
|
|
*/
|
|
function baseSortedUniq(array, iteratee) {
|
|
var index = -1,
|
|
length = array.length,
|
|
resIndex = 0,
|
|
result = [];
|
|
|
|
while (++index < length) {
|
|
var value = array[index],
|
|
computed = iteratee ? iteratee(value) : value;
|
|
|
|
if (!index || !eq(computed, seen)) {
|
|
var seen = computed;
|
|
result[resIndex++] = value === 0 ? 0 : value;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.toNumber` which doesn't ensure correct
|
|
* conversions of binary, hexadecimal, or octal string values.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to process.
|
|
* @returns {number} Returns the number.
|
|
*/
|
|
function baseToNumber(value) {
|
|
if (typeof value == 'number') {
|
|
return value;
|
|
}
|
|
if (isSymbol(value)) {
|
|
return NAN;
|
|
}
|
|
return +value;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.toString` which doesn't convert nullish
|
|
* values to empty strings.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to process.
|
|
* @returns {string} Returns the string.
|
|
*/
|
|
function baseToString(value) {
|
|
// Exit early for strings to avoid a performance hit in some environments.
|
|
if (typeof value == 'string') {
|
|
return value;
|
|
}
|
|
if (isArray(value)) {
|
|
// Recursively convert values (susceptible to call stack limits).
|
|
return arrayMap(value, baseToString) + '';
|
|
}
|
|
if (isSymbol(value)) {
|
|
return symbolToString ? symbolToString.call(value) : '';
|
|
}
|
|
var result = (value + '');
|
|
return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.uniqBy` without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Function} [iteratee] The iteratee invoked per element.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new duplicate free array.
|
|
*/
|
|
function baseUniq(array, iteratee, comparator) {
|
|
var index = -1,
|
|
includes = arrayIncludes,
|
|
length = array.length,
|
|
isCommon = true,
|
|
result = [],
|
|
seen = result;
|
|
|
|
if (comparator) {
|
|
isCommon = false;
|
|
includes = arrayIncludesWith;
|
|
}
|
|
else if (length >= LARGE_ARRAY_SIZE) {
|
|
var set = iteratee ? null : createSet(array);
|
|
if (set) {
|
|
return setToArray(set);
|
|
}
|
|
isCommon = false;
|
|
includes = cacheHas;
|
|
seen = new SetCache;
|
|
}
|
|
else {
|
|
seen = iteratee ? [] : result;
|
|
}
|
|
outer:
|
|
while (++index < length) {
|
|
var value = array[index],
|
|
computed = iteratee ? iteratee(value) : value;
|
|
|
|
value = (comparator || value !== 0) ? value : 0;
|
|
if (isCommon && computed === computed) {
|
|
var seenIndex = seen.length;
|
|
while (seenIndex--) {
|
|
if (seen[seenIndex] === computed) {
|
|
continue outer;
|
|
}
|
|
}
|
|
if (iteratee) {
|
|
seen.push(computed);
|
|
}
|
|
result.push(value);
|
|
}
|
|
else if (!includes(seen, computed, comparator)) {
|
|
if (seen !== result) {
|
|
seen.push(computed);
|
|
}
|
|
result.push(value);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.unset`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to modify.
|
|
* @param {Array|string} path The property path to unset.
|
|
* @returns {boolean} Returns `true` if the property is deleted, else `false`.
|
|
*/
|
|
function baseUnset(object, path) {
|
|
path = castPath(path, object);
|
|
object = parent(object, path);
|
|
return object == null || delete object[toKey(last(path))];
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `_.update`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to modify.
|
|
* @param {Array|string} path The path of the property to update.
|
|
* @param {Function} updater The function to produce the updated value.
|
|
* @param {Function} [customizer] The function to customize path creation.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function baseUpdate(object, path, updater, customizer) {
|
|
return baseSet(object, path, updater(baseGet(object, path)), customizer);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of methods like `_.dropWhile` and `_.takeWhile`
|
|
* without support for iteratee shorthands.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to query.
|
|
* @param {Function} predicate The function invoked per iteration.
|
|
* @param {boolean} [isDrop] Specify dropping elements instead of taking them.
|
|
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
*/
|
|
function baseWhile(array, predicate, isDrop, fromRight) {
|
|
var length = array.length,
|
|
index = fromRight ? length : -1;
|
|
|
|
while ((fromRight ? index-- : ++index < length) &&
|
|
predicate(array[index], index, array)) {}
|
|
|
|
return isDrop
|
|
? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
|
|
: baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
|
|
}
|
|
|
|
/**
|
|
* The base implementation of `wrapperValue` which returns the result of
|
|
* performing a sequence of actions on the unwrapped `value`, where each
|
|
* successive action is supplied the return value of the previous.
|
|
*
|
|
* @private
|
|
* @param {*} value The unwrapped value.
|
|
* @param {Array} actions Actions to perform to resolve the unwrapped value.
|
|
* @returns {*} Returns the resolved value.
|
|
*/
|
|
function baseWrapperValue(value, actions) {
|
|
var result = value;
|
|
if (result instanceof LazyWrapper) {
|
|
result = result.value();
|
|
}
|
|
return arrayReduce(actions, function(result, action) {
|
|
return action.func.apply(action.thisArg, arrayPush([result], action.args));
|
|
}, result);
|
|
}
|
|
|
|
/**
|
|
* The base implementation of methods like `_.xor`, without support for
|
|
* iteratee shorthands, that accepts an array of arrays to inspect.
|
|
*
|
|
* @private
|
|
* @param {Array} arrays The arrays to inspect.
|
|
* @param {Function} [iteratee] The iteratee invoked per element.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new array of values.
|
|
*/
|
|
function baseXor(arrays, iteratee, comparator) {
|
|
var length = arrays.length;
|
|
if (length < 2) {
|
|
return length ? baseUniq(arrays[0]) : [];
|
|
}
|
|
var index = -1,
|
|
result = Array(length);
|
|
|
|
while (++index < length) {
|
|
var array = arrays[index],
|
|
othIndex = -1;
|
|
|
|
while (++othIndex < length) {
|
|
if (othIndex != index) {
|
|
result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
|
|
}
|
|
}
|
|
}
|
|
return baseUniq(baseFlatten(result, 1), iteratee, comparator);
|
|
}
|
|
|
|
/**
|
|
* This base implementation of `_.zipObject` which assigns values using `assignFunc`.
|
|
*
|
|
* @private
|
|
* @param {Array} props The property identifiers.
|
|
* @param {Array} values The property values.
|
|
* @param {Function} assignFunc The function to assign values.
|
|
* @returns {Object} Returns the new object.
|
|
*/
|
|
function baseZipObject(props, values, assignFunc) {
|
|
var index = -1,
|
|
length = props.length,
|
|
valsLength = values.length,
|
|
result = {};
|
|
|
|
while (++index < length) {
|
|
var value = index < valsLength ? values[index] : undefined;
|
|
assignFunc(result, props[index], value);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Casts `value` to an empty array if it's not an array like object.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to inspect.
|
|
* @returns {Array|Object} Returns the cast array-like object.
|
|
*/
|
|
function castArrayLikeObject(value) {
|
|
return isArrayLikeObject(value) ? value : [];
|
|
}
|
|
|
|
/**
|
|
* Casts `value` to `identity` if it's not a function.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to inspect.
|
|
* @returns {Function} Returns cast function.
|
|
*/
|
|
function castFunction(value) {
|
|
return typeof value == 'function' ? value : identity;
|
|
}
|
|
|
|
/**
|
|
* Casts `value` to a path array if it's not one.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to inspect.
|
|
* @param {Object} [object] The object to query keys on.
|
|
* @returns {Array} Returns the cast property path array.
|
|
*/
|
|
function castPath(value, object) {
|
|
if (isArray(value)) {
|
|
return value;
|
|
}
|
|
return isKey(value, object) ? [value] : stringToPath(toString(value));
|
|
}
|
|
|
|
/**
|
|
* A `baseRest` alias which can be replaced with `identity` by module
|
|
* replacement plugins.
|
|
*
|
|
* @private
|
|
* @type {Function}
|
|
* @param {Function} func The function to apply a rest parameter to.
|
|
* @returns {Function} Returns the new function.
|
|
*/
|
|
var castRest = baseRest;
|
|
|
|
/**
|
|
* Casts `array` to a slice if it's needed.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to inspect.
|
|
* @param {number} start The start position.
|
|
* @param {number} [end=array.length] The end position.
|
|
* @returns {Array} Returns the cast slice.
|
|
*/
|
|
function castSlice(array, start, end) {
|
|
var length = array.length;
|
|
end = end === undefined ? length : end;
|
|
return (!start && end >= length) ? array : baseSlice(array, start, end);
|
|
}
|
|
|
|
/**
|
|
* A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
|
|
*
|
|
* @private
|
|
* @param {number|Object} id The timer id or timeout object of the timer to clear.
|
|
*/
|
|
var clearTimeout = ctxClearTimeout || function(id) {
|
|
return root.clearTimeout(id);
|
|
};
|
|
|
|
/**
|
|
* Creates a clone of `buffer`.
|
|
*
|
|
* @private
|
|
* @param {Buffer} buffer The buffer to clone.
|
|
* @param {boolean} [isDeep] Specify a deep clone.
|
|
* @returns {Buffer} Returns the cloned buffer.
|
|
*/
|
|
function cloneBuffer(buffer, isDeep) {
|
|
if (isDeep) {
|
|
return buffer.slice();
|
|
}
|
|
var length = buffer.length,
|
|
result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
|
|
|
|
buffer.copy(result);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a clone of `arrayBuffer`.
|
|
*
|
|
* @private
|
|
* @param {ArrayBuffer} arrayBuffer The array buffer to clone.
|
|
* @returns {ArrayBuffer} Returns the cloned array buffer.
|
|
*/
|
|
function cloneArrayBuffer(arrayBuffer) {
|
|
var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
|
|
new Uint8Array(result).set(new Uint8Array(arrayBuffer));
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a clone of `dataView`.
|
|
*
|
|
* @private
|
|
* @param {Object} dataView The data view to clone.
|
|
* @param {boolean} [isDeep] Specify a deep clone.
|
|
* @returns {Object} Returns the cloned data view.
|
|
*/
|
|
function cloneDataView(dataView, isDeep) {
|
|
var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
|
|
return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
|
|
}
|
|
|
|
/**
|
|
* Creates a clone of `regexp`.
|
|
*
|
|
* @private
|
|
* @param {Object} regexp The regexp to clone.
|
|
* @returns {Object} Returns the cloned regexp.
|
|
*/
|
|
function cloneRegExp(regexp) {
|
|
var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
|
|
result.lastIndex = regexp.lastIndex;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a clone of the `symbol` object.
|
|
*
|
|
* @private
|
|
* @param {Object} symbol The symbol object to clone.
|
|
* @returns {Object} Returns the cloned symbol object.
|
|
*/
|
|
function cloneSymbol(symbol) {
|
|
return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
|
|
}
|
|
|
|
/**
|
|
* Creates a clone of `typedArray`.
|
|
*
|
|
* @private
|
|
* @param {Object} typedArray The typed array to clone.
|
|
* @param {boolean} [isDeep] Specify a deep clone.
|
|
* @returns {Object} Returns the cloned typed array.
|
|
*/
|
|
function cloneTypedArray(typedArray, isDeep) {
|
|
var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
|
|
return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
|
|
}
|
|
|
|
/**
|
|
* Compares values to sort them in ascending order.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {number} Returns the sort order indicator for `value`.
|
|
*/
|
|
function compareAscending(value, other) {
|
|
if (value !== other) {
|
|
var valIsDefined = value !== undefined,
|
|
valIsNull = value === null,
|
|
valIsReflexive = value === value,
|
|
valIsSymbol = isSymbol(value);
|
|
|
|
var othIsDefined = other !== undefined,
|
|
othIsNull = other === null,
|
|
othIsReflexive = other === other,
|
|
othIsSymbol = isSymbol(other);
|
|
|
|
if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
|
|
(valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
|
|
(valIsNull && othIsDefined && othIsReflexive) ||
|
|
(!valIsDefined && othIsReflexive) ||
|
|
!valIsReflexive) {
|
|
return 1;
|
|
}
|
|
if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
|
|
(othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
|
|
(othIsNull && valIsDefined && valIsReflexive) ||
|
|
(!othIsDefined && valIsReflexive) ||
|
|
!othIsReflexive) {
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Used by `_.orderBy` to compare multiple properties of a value to another
|
|
* and stable sort them.
|
|
*
|
|
* If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
|
|
* specify an order of "desc" for descending or "asc" for ascending sort order
|
|
* of corresponding values.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to compare.
|
|
* @param {Object} other The other object to compare.
|
|
* @param {boolean[]|string[]} orders The order to sort by for each property.
|
|
* @returns {number} Returns the sort order indicator for `object`.
|
|
*/
|
|
function compareMultiple(object, other, orders) {
|
|
var index = -1,
|
|
objCriteria = object.criteria,
|
|
othCriteria = other.criteria,
|
|
length = objCriteria.length,
|
|
ordersLength = orders.length;
|
|
|
|
while (++index < length) {
|
|
var result = compareAscending(objCriteria[index], othCriteria[index]);
|
|
if (result) {
|
|
if (index >= ordersLength) {
|
|
return result;
|
|
}
|
|
var order = orders[index];
|
|
return result * (order == 'desc' ? -1 : 1);
|
|
}
|
|
}
|
|
// Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
|
|
// that causes it, under certain circumstances, to provide the same value for
|
|
// `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
|
|
// for more details.
|
|
//
|
|
// This also ensures a stable sort in V8 and other engines.
|
|
// See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
|
|
return object.index - other.index;
|
|
}
|
|
|
|
/**
|
|
* Creates an array that is the composition of partially applied arguments,
|
|
* placeholders, and provided arguments into a single array of arguments.
|
|
*
|
|
* @private
|
|
* @param {Array} args The provided arguments.
|
|
* @param {Array} partials The arguments to prepend to those provided.
|
|
* @param {Array} holders The `partials` placeholder indexes.
|
|
* @params {boolean} [isCurried] Specify composing for a curried function.
|
|
* @returns {Array} Returns the new array of composed arguments.
|
|
*/
|
|
function composeArgs(args, partials, holders, isCurried) {
|
|
var argsIndex = -1,
|
|
argsLength = args.length,
|
|
holdersLength = holders.length,
|
|
leftIndex = -1,
|
|
leftLength = partials.length,
|
|
rangeLength = nativeMax(argsLength - holdersLength, 0),
|
|
result = Array(leftLength + rangeLength),
|
|
isUncurried = !isCurried;
|
|
|
|
while (++leftIndex < leftLength) {
|
|
result[leftIndex] = partials[leftIndex];
|
|
}
|
|
while (++argsIndex < holdersLength) {
|
|
if (isUncurried || argsIndex < argsLength) {
|
|
result[holders[argsIndex]] = args[argsIndex];
|
|
}
|
|
}
|
|
while (rangeLength--) {
|
|
result[leftIndex++] = args[argsIndex++];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This function is like `composeArgs` except that the arguments composition
|
|
* is tailored for `_.partialRight`.
|
|
*
|
|
* @private
|
|
* @param {Array} args The provided arguments.
|
|
* @param {Array} partials The arguments to append to those provided.
|
|
* @param {Array} holders The `partials` placeholder indexes.
|
|
* @params {boolean} [isCurried] Specify composing for a curried function.
|
|
* @returns {Array} Returns the new array of composed arguments.
|
|
*/
|
|
function composeArgsRight(args, partials, holders, isCurried) {
|
|
var argsIndex = -1,
|
|
argsLength = args.length,
|
|
holdersIndex = -1,
|
|
holdersLength = holders.length,
|
|
rightIndex = -1,
|
|
rightLength = partials.length,
|
|
rangeLength = nativeMax(argsLength - holdersLength, 0),
|
|
result = Array(rangeLength + rightLength),
|
|
isUncurried = !isCurried;
|
|
|
|
while (++argsIndex < rangeLength) {
|
|
result[argsIndex] = args[argsIndex];
|
|
}
|
|
var offset = argsIndex;
|
|
while (++rightIndex < rightLength) {
|
|
result[offset + rightIndex] = partials[rightIndex];
|
|
}
|
|
while (++holdersIndex < holdersLength) {
|
|
if (isUncurried || argsIndex < argsLength) {
|
|
result[offset + holders[holdersIndex]] = args[argsIndex++];
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Copies the values of `source` to `array`.
|
|
*
|
|
* @private
|
|
* @param {Array} source The array to copy values from.
|
|
* @param {Array} [array=[]] The array to copy values to.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function copyArray(source, array) {
|
|
var index = -1,
|
|
length = source.length;
|
|
|
|
array || (array = Array(length));
|
|
while (++index < length) {
|
|
array[index] = source[index];
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* Copies properties of `source` to `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} source The object to copy properties from.
|
|
* @param {Array} props The property identifiers to copy.
|
|
* @param {Object} [object={}] The object to copy properties to.
|
|
* @param {Function} [customizer] The function to customize copied values.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function copyObject(source, props, object, customizer) {
|
|
var isNew = !object;
|
|
object || (object = {});
|
|
|
|
var index = -1,
|
|
length = props.length;
|
|
|
|
while (++index < length) {
|
|
var key = props[index];
|
|
|
|
var newValue = customizer
|
|
? customizer(object[key], source[key], key, object, source)
|
|
: undefined;
|
|
|
|
if (newValue === undefined) {
|
|
newValue = source[key];
|
|
}
|
|
if (isNew) {
|
|
baseAssignValue(object, key, newValue);
|
|
} else {
|
|
assignValue(object, key, newValue);
|
|
}
|
|
}
|
|
return object;
|
|
}
|
|
|
|
/**
|
|
* Copies own symbols of `source` to `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} source The object to copy symbols from.
|
|
* @param {Object} [object={}] The object to copy symbols to.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function copySymbols(source, object) {
|
|
return copyObject(source, getSymbols(source), object);
|
|
}
|
|
|
|
/**
|
|
* Copies own and inherited symbols of `source` to `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} source The object to copy symbols from.
|
|
* @param {Object} [object={}] The object to copy symbols to.
|
|
* @returns {Object} Returns `object`.
|
|
*/
|
|
function copySymbolsIn(source, object) {
|
|
return copyObject(source, getSymbolsIn(source), object);
|
|
}
|
|
|
|
/**
|
|
* Creates a function like `_.groupBy`.
|
|
*
|
|
* @private
|
|
* @param {Function} setter The function to set accumulator values.
|
|
* @param {Function} [initializer] The accumulator object initializer.
|
|
* @returns {Function} Returns the new aggregator function.
|
|
*/
|
|
function createAggregator(setter, initializer) {
|
|
return function(collection, iteratee) {
|
|
var func = isArray(collection) ? arrayAggregator : baseAggregator,
|
|
accumulator = initializer ? initializer() : {};
|
|
|
|
return func(collection, setter, getIteratee(iteratee, 2), accumulator);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function like `_.assign`.
|
|
*
|
|
* @private
|
|
* @param {Function} assigner The function to assign values.
|
|
* @returns {Function} Returns the new assigner function.
|
|
*/
|
|
function createAssigner(assigner) {
|
|
return baseRest(function(object, sources) {
|
|
var index = -1,
|
|
length = sources.length,
|
|
customizer = length > 1 ? sources[length - 1] : undefined,
|
|
guard = length > 2 ? sources[2] : undefined;
|
|
|
|
customizer = (assigner.length > 3 && typeof customizer == 'function')
|
|
? (length--, customizer)
|
|
: undefined;
|
|
|
|
if (guard && isIterateeCall(sources[0], sources[1], guard)) {
|
|
customizer = length < 3 ? undefined : customizer;
|
|
length = 1;
|
|
}
|
|
object = Object(object);
|
|
while (++index < length) {
|
|
var source = sources[index];
|
|
if (source) {
|
|
assigner(object, source, index, customizer);
|
|
}
|
|
}
|
|
return object;
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates a `baseEach` or `baseEachRight` function.
|
|
*
|
|
* @private
|
|
* @param {Function} eachFunc The function to iterate over a collection.
|
|
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
* @returns {Function} Returns the new base function.
|
|
*/
|
|
function createBaseEach(eachFunc, fromRight) {
|
|
return function(collection, iteratee) {
|
|
if (collection == null) {
|
|
return collection;
|
|
}
|
|
if (!isArrayLike(collection)) {
|
|
return eachFunc(collection, iteratee);
|
|
}
|
|
var length = collection.length,
|
|
index = fromRight ? length : -1,
|
|
iterable = Object(collection);
|
|
|
|
while ((fromRight ? index-- : ++index < length)) {
|
|
if (iteratee(iterable[index], index, iterable) === false) {
|
|
break;
|
|
}
|
|
}
|
|
return collection;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a base function for methods like `_.forIn` and `_.forOwn`.
|
|
*
|
|
* @private
|
|
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
* @returns {Function} Returns the new base function.
|
|
*/
|
|
function createBaseFor(fromRight) {
|
|
return function(object, iteratee, keysFunc) {
|
|
var index = -1,
|
|
iterable = Object(object),
|
|
props = keysFunc(object),
|
|
length = props.length;
|
|
|
|
while (length--) {
|
|
var key = props[fromRight ? length : ++index];
|
|
if (iteratee(iterable[key], key, iterable) === false) {
|
|
break;
|
|
}
|
|
}
|
|
return object;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that wraps `func` to invoke it with the optional `this`
|
|
* binding of `thisArg`.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to wrap.
|
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
|
* @param {*} [thisArg] The `this` binding of `func`.
|
|
* @returns {Function} Returns the new wrapped function.
|
|
*/
|
|
function createBind(func, bitmask, thisArg) {
|
|
var isBind = bitmask & WRAP_BIND_FLAG,
|
|
Ctor = createCtor(func);
|
|
|
|
function wrapper() {
|
|
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
|
|
return fn.apply(isBind ? thisArg : this, arguments);
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
/**
|
|
* Creates a function like `_.lowerFirst`.
|
|
*
|
|
* @private
|
|
* @param {string} methodName The name of the `String` case method to use.
|
|
* @returns {Function} Returns the new case function.
|
|
*/
|
|
function createCaseFirst(methodName) {
|
|
return function(string) {
|
|
string = toString(string);
|
|
|
|
var strSymbols = hasUnicode(string)
|
|
? stringToArray(string)
|
|
: undefined;
|
|
|
|
var chr = strSymbols
|
|
? strSymbols[0]
|
|
: string.charAt(0);
|
|
|
|
var trailing = strSymbols
|
|
? castSlice(strSymbols, 1).join('')
|
|
: string.slice(1);
|
|
|
|
return chr[methodName]() + trailing;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function like `_.camelCase`.
|
|
*
|
|
* @private
|
|
* @param {Function} callback The function to combine each word.
|
|
* @returns {Function} Returns the new compounder function.
|
|
*/
|
|
function createCompounder(callback) {
|
|
return function(string) {
|
|
return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that produces an instance of `Ctor` regardless of
|
|
* whether it was invoked as part of a `new` expression or by `call` or `apply`.
|
|
*
|
|
* @private
|
|
* @param {Function} Ctor The constructor to wrap.
|
|
* @returns {Function} Returns the new wrapped function.
|
|
*/
|
|
function createCtor(Ctor) {
|
|
return function() {
|
|
// Use a `switch` statement to work with class constructors. See
|
|
// http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
|
|
// for more details.
|
|
var args = arguments;
|
|
switch (args.length) {
|
|
case 0: return new Ctor;
|
|
case 1: return new Ctor(args[0]);
|
|
case 2: return new Ctor(args[0], args[1]);
|
|
case 3: return new Ctor(args[0], args[1], args[2]);
|
|
case 4: return new Ctor(args[0], args[1], args[2], args[3]);
|
|
case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
|
|
case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
|
|
case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
|
|
}
|
|
var thisBinding = baseCreate(Ctor.prototype),
|
|
result = Ctor.apply(thisBinding, args);
|
|
|
|
// Mimic the constructor's `return` behavior.
|
|
// See https://es5.github.io/#x13.2.2 for more details.
|
|
return isObject(result) ? result : thisBinding;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that wraps `func` to enable currying.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to wrap.
|
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
|
* @param {number} arity The arity of `func`.
|
|
* @returns {Function} Returns the new wrapped function.
|
|
*/
|
|
function createCurry(func, bitmask, arity) {
|
|
var Ctor = createCtor(func);
|
|
|
|
function wrapper() {
|
|
var length = arguments.length,
|
|
args = Array(length),
|
|
index = length,
|
|
placeholder = getHolder(wrapper);
|
|
|
|
while (index--) {
|
|
args[index] = arguments[index];
|
|
}
|
|
var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
|
|
? []
|
|
: replaceHolders(args, placeholder);
|
|
|
|
length -= holders.length;
|
|
if (length < arity) {
|
|
return createRecurry(
|
|
func, bitmask, createHybrid, wrapper.placeholder, undefined,
|
|
args, holders, undefined, undefined, arity - length);
|
|
}
|
|
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
|
|
return apply(fn, this, args);
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
/**
|
|
* Creates a `_.find` or `_.findLast` function.
|
|
*
|
|
* @private
|
|
* @param {Function} findIndexFunc The function to find the collection index.
|
|
* @returns {Function} Returns the new find function.
|
|
*/
|
|
function createFind(findIndexFunc) {
|
|
return function(collection, predicate, fromIndex) {
|
|
var iterable = Object(collection);
|
|
if (!isArrayLike(collection)) {
|
|
var iteratee = getIteratee(predicate, 3);
|
|
collection = keys(collection);
|
|
predicate = function(key) { return iteratee(iterable[key], key, iterable); };
|
|
}
|
|
var index = findIndexFunc(collection, predicate, fromIndex);
|
|
return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a `_.flow` or `_.flowRight` function.
|
|
*
|
|
* @private
|
|
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
* @returns {Function} Returns the new flow function.
|
|
*/
|
|
function createFlow(fromRight) {
|
|
return flatRest(function(funcs) {
|
|
var length = funcs.length,
|
|
index = length,
|
|
prereq = LodashWrapper.prototype.thru;
|
|
|
|
if (fromRight) {
|
|
funcs.reverse();
|
|
}
|
|
while (index--) {
|
|
var func = funcs[index];
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
|
|
var wrapper = new LodashWrapper([], true);
|
|
}
|
|
}
|
|
index = wrapper ? index : length;
|
|
while (++index < length) {
|
|
func = funcs[index];
|
|
|
|
var funcName = getFuncName(func),
|
|
data = funcName == 'wrapper' ? getData(func) : undefined;
|
|
|
|
if (data && isLaziable(data[0]) &&
|
|
data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&
|
|
!data[4].length && data[9] == 1
|
|
) {
|
|
wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
|
|
} else {
|
|
wrapper = (func.length == 1 && isLaziable(func))
|
|
? wrapper[funcName]()
|
|
: wrapper.thru(func);
|
|
}
|
|
}
|
|
return function() {
|
|
var args = arguments,
|
|
value = args[0];
|
|
|
|
if (wrapper && args.length == 1 && isArray(value)) {
|
|
return wrapper.plant(value).value();
|
|
}
|
|
var index = 0,
|
|
result = length ? funcs[index].apply(this, args) : value;
|
|
|
|
while (++index < length) {
|
|
result = funcs[index].call(this, result);
|
|
}
|
|
return result;
|
|
};
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates a function that wraps `func` to invoke it with optional `this`
|
|
* binding of `thisArg`, partial application, and currying.
|
|
*
|
|
* @private
|
|
* @param {Function|string} func The function or method name to wrap.
|
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
|
* @param {*} [thisArg] The `this` binding of `func`.
|
|
* @param {Array} [partials] The arguments to prepend to those provided to
|
|
* the new function.
|
|
* @param {Array} [holders] The `partials` placeholder indexes.
|
|
* @param {Array} [partialsRight] The arguments to append to those provided
|
|
* to the new function.
|
|
* @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
|
|
* @param {Array} [argPos] The argument positions of the new function.
|
|
* @param {number} [ary] The arity cap of `func`.
|
|
* @param {number} [arity] The arity of `func`.
|
|
* @returns {Function} Returns the new wrapped function.
|
|
*/
|
|
function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
|
|
var isAry = bitmask & WRAP_ARY_FLAG,
|
|
isBind = bitmask & WRAP_BIND_FLAG,
|
|
isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
|
|
isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
|
|
isFlip = bitmask & WRAP_FLIP_FLAG,
|
|
Ctor = isBindKey ? undefined : createCtor(func);
|
|
|
|
function wrapper() {
|
|
var length = arguments.length,
|
|
args = Array(length),
|
|
index = length;
|
|
|
|
while (index--) {
|
|
args[index] = arguments[index];
|
|
}
|
|
if (isCurried) {
|
|
var placeholder = getHolder(wrapper),
|
|
holdersCount = countHolders(args, placeholder);
|
|
}
|
|
if (partials) {
|
|
args = composeArgs(args, partials, holders, isCurried);
|
|
}
|
|
if (partialsRight) {
|
|
args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
|
|
}
|
|
length -= holdersCount;
|
|
if (isCurried && length < arity) {
|
|
var newHolders = replaceHolders(args, placeholder);
|
|
return createRecurry(
|
|
func, bitmask, createHybrid, wrapper.placeholder, thisArg,
|
|
args, newHolders, argPos, ary, arity - length
|
|
);
|
|
}
|
|
var thisBinding = isBind ? thisArg : this,
|
|
fn = isBindKey ? thisBinding[func] : func;
|
|
|
|
length = args.length;
|
|
if (argPos) {
|
|
args = reorder(args, argPos);
|
|
} else if (isFlip && length > 1) {
|
|
args.reverse();
|
|
}
|
|
if (isAry && ary < length) {
|
|
args.length = ary;
|
|
}
|
|
if (this && this !== root && this instanceof wrapper) {
|
|
fn = Ctor || createCtor(fn);
|
|
}
|
|
return fn.apply(thisBinding, args);
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
/**
|
|
* Creates a function like `_.invertBy`.
|
|
*
|
|
* @private
|
|
* @param {Function} setter The function to set accumulator values.
|
|
* @param {Function} toIteratee The function to resolve iteratees.
|
|
* @returns {Function} Returns the new inverter function.
|
|
*/
|
|
function createInverter(setter, toIteratee) {
|
|
return function(object, iteratee) {
|
|
return baseInverter(object, setter, toIteratee(iteratee), {});
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that performs a mathematical operation on two values.
|
|
*
|
|
* @private
|
|
* @param {Function} operator The function to perform the operation.
|
|
* @param {number} [defaultValue] The value used for `undefined` arguments.
|
|
* @returns {Function} Returns the new mathematical operation function.
|
|
*/
|
|
function createMathOperation(operator, defaultValue) {
|
|
return function(value, other) {
|
|
var result;
|
|
if (value === undefined && other === undefined) {
|
|
return defaultValue;
|
|
}
|
|
if (value !== undefined) {
|
|
result = value;
|
|
}
|
|
if (other !== undefined) {
|
|
if (result === undefined) {
|
|
return other;
|
|
}
|
|
if (typeof value == 'string' || typeof other == 'string') {
|
|
value = baseToString(value);
|
|
other = baseToString(other);
|
|
} else {
|
|
value = baseToNumber(value);
|
|
other = baseToNumber(other);
|
|
}
|
|
result = operator(value, other);
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function like `_.over`.
|
|
*
|
|
* @private
|
|
* @param {Function} arrayFunc The function to iterate over iteratees.
|
|
* @returns {Function} Returns the new over function.
|
|
*/
|
|
function createOver(arrayFunc) {
|
|
return flatRest(function(iteratees) {
|
|
iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
|
|
return baseRest(function(args) {
|
|
var thisArg = this;
|
|
return arrayFunc(iteratees, function(iteratee) {
|
|
return apply(iteratee, thisArg, args);
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates the padding for `string` based on `length`. The `chars` string
|
|
* is truncated if the number of characters exceeds `length`.
|
|
*
|
|
* @private
|
|
* @param {number} length The padding length.
|
|
* @param {string} [chars=' '] The string used as padding.
|
|
* @returns {string} Returns the padding for `string`.
|
|
*/
|
|
function createPadding(length, chars) {
|
|
chars = chars === undefined ? ' ' : baseToString(chars);
|
|
|
|
var charsLength = chars.length;
|
|
if (charsLength < 2) {
|
|
return charsLength ? baseRepeat(chars, length) : chars;
|
|
}
|
|
var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
|
|
return hasUnicode(chars)
|
|
? castSlice(stringToArray(result), 0, length).join('')
|
|
: result.slice(0, length);
|
|
}
|
|
|
|
/**
|
|
* Creates a function that wraps `func` to invoke it with the `this` binding
|
|
* of `thisArg` and `partials` prepended to the arguments it receives.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to wrap.
|
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
|
* @param {*} thisArg The `this` binding of `func`.
|
|
* @param {Array} partials The arguments to prepend to those provided to
|
|
* the new function.
|
|
* @returns {Function} Returns the new wrapped function.
|
|
*/
|
|
function createPartial(func, bitmask, thisArg, partials) {
|
|
var isBind = bitmask & WRAP_BIND_FLAG,
|
|
Ctor = createCtor(func);
|
|
|
|
function wrapper() {
|
|
var argsIndex = -1,
|
|
argsLength = arguments.length,
|
|
leftIndex = -1,
|
|
leftLength = partials.length,
|
|
args = Array(leftLength + argsLength),
|
|
fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
|
|
|
|
while (++leftIndex < leftLength) {
|
|
args[leftIndex] = partials[leftIndex];
|
|
}
|
|
while (argsLength--) {
|
|
args[leftIndex++] = arguments[++argsIndex];
|
|
}
|
|
return apply(fn, isBind ? thisArg : this, args);
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
/**
|
|
* Creates a `_.range` or `_.rangeRight` function.
|
|
*
|
|
* @private
|
|
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
* @returns {Function} Returns the new range function.
|
|
*/
|
|
function createRange(fromRight) {
|
|
return function(start, end, step) {
|
|
if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
|
|
end = step = undefined;
|
|
}
|
|
// Ensure the sign of `-0` is preserved.
|
|
start = toFinite(start);
|
|
if (end === undefined) {
|
|
end = start;
|
|
start = 0;
|
|
} else {
|
|
end = toFinite(end);
|
|
}
|
|
step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
|
|
return baseRange(start, end, step, fromRight);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that performs a relational operation on two values.
|
|
*
|
|
* @private
|
|
* @param {Function} operator The function to perform the operation.
|
|
* @returns {Function} Returns the new relational operation function.
|
|
*/
|
|
function createRelationalOperation(operator) {
|
|
return function(value, other) {
|
|
if (!(typeof value == 'string' && typeof other == 'string')) {
|
|
value = toNumber(value);
|
|
other = toNumber(other);
|
|
}
|
|
return operator(value, other);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that wraps `func` to continue currying.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to wrap.
|
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
|
* @param {Function} wrapFunc The function to create the `func` wrapper.
|
|
* @param {*} placeholder The placeholder value.
|
|
* @param {*} [thisArg] The `this` binding of `func`.
|
|
* @param {Array} [partials] The arguments to prepend to those provided to
|
|
* the new function.
|
|
* @param {Array} [holders] The `partials` placeholder indexes.
|
|
* @param {Array} [argPos] The argument positions of the new function.
|
|
* @param {number} [ary] The arity cap of `func`.
|
|
* @param {number} [arity] The arity of `func`.
|
|
* @returns {Function} Returns the new wrapped function.
|
|
*/
|
|
function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
|
|
var isCurry = bitmask & WRAP_CURRY_FLAG,
|
|
newHolders = isCurry ? holders : undefined,
|
|
newHoldersRight = isCurry ? undefined : holders,
|
|
newPartials = isCurry ? partials : undefined,
|
|
newPartialsRight = isCurry ? undefined : partials;
|
|
|
|
bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
|
|
bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);
|
|
|
|
if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
|
|
bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
|
|
}
|
|
var newData = [
|
|
func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
|
|
newHoldersRight, argPos, ary, arity
|
|
];
|
|
|
|
var result = wrapFunc.apply(undefined, newData);
|
|
if (isLaziable(func)) {
|
|
setData(result, newData);
|
|
}
|
|
result.placeholder = placeholder;
|
|
return setWrapToString(result, func, bitmask);
|
|
}
|
|
|
|
/**
|
|
* Creates a function like `_.round`.
|
|
*
|
|
* @private
|
|
* @param {string} methodName The name of the `Math` method to use when rounding.
|
|
* @returns {Function} Returns the new round function.
|
|
*/
|
|
function createRound(methodName) {
|
|
var func = Math[methodName];
|
|
return function(number, precision) {
|
|
number = toNumber(number);
|
|
precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
|
|
if (precision && nativeIsFinite(number)) {
|
|
// Shift with exponential notation to avoid floating-point issues.
|
|
// See [MDN](https://mdn.io/round#Examples) for more details.
|
|
var pair = (toString(number) + 'e').split('e'),
|
|
value = func(pair[0] + 'e' + (+pair[1] + precision));
|
|
|
|
pair = (toString(value) + 'e').split('e');
|
|
return +(pair[0] + 'e' + (+pair[1] - precision));
|
|
}
|
|
return func(number);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a set object of `values`.
|
|
*
|
|
* @private
|
|
* @param {Array} values The values to add to the set.
|
|
* @returns {Object} Returns the new set.
|
|
*/
|
|
var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
|
|
return new Set(values);
|
|
};
|
|
|
|
/**
|
|
* Creates a `_.toPairs` or `_.toPairsIn` function.
|
|
*
|
|
* @private
|
|
* @param {Function} keysFunc The function to get the keys of a given object.
|
|
* @returns {Function} Returns the new pairs function.
|
|
*/
|
|
function createToPairs(keysFunc) {
|
|
return function(object) {
|
|
var tag = getTag(object);
|
|
if (tag == mapTag) {
|
|
return mapToArray(object);
|
|
}
|
|
if (tag == setTag) {
|
|
return setToPairs(object);
|
|
}
|
|
return baseToPairs(object, keysFunc(object));
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that either curries or invokes `func` with optional
|
|
* `this` binding and partially applied arguments.
|
|
*
|
|
* @private
|
|
* @param {Function|string} func The function or method name to wrap.
|
|
* @param {number} bitmask The bitmask flags.
|
|
* 1 - `_.bind`
|
|
* 2 - `_.bindKey`
|
|
* 4 - `_.curry` or `_.curryRight` of a bound function
|
|
* 8 - `_.curry`
|
|
* 16 - `_.curryRight`
|
|
* 32 - `_.partial`
|
|
* 64 - `_.partialRight`
|
|
* 128 - `_.rearg`
|
|
* 256 - `_.ary`
|
|
* 512 - `_.flip`
|
|
* @param {*} [thisArg] The `this` binding of `func`.
|
|
* @param {Array} [partials] The arguments to be partially applied.
|
|
* @param {Array} [holders] The `partials` placeholder indexes.
|
|
* @param {Array} [argPos] The argument positions of the new function.
|
|
* @param {number} [ary] The arity cap of `func`.
|
|
* @param {number} [arity] The arity of `func`.
|
|
* @returns {Function} Returns the new wrapped function.
|
|
*/
|
|
function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
|
|
var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
|
|
if (!isBindKey && typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
var length = partials ? partials.length : 0;
|
|
if (!length) {
|
|
bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
|
|
partials = holders = undefined;
|
|
}
|
|
ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
|
|
arity = arity === undefined ? arity : toInteger(arity);
|
|
length -= holders ? holders.length : 0;
|
|
|
|
if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
|
|
var partialsRight = partials,
|
|
holdersRight = holders;
|
|
|
|
partials = holders = undefined;
|
|
}
|
|
var data = isBindKey ? undefined : getData(func);
|
|
|
|
var newData = [
|
|
func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
|
|
argPos, ary, arity
|
|
];
|
|
|
|
if (data) {
|
|
mergeData(newData, data);
|
|
}
|
|
func = newData[0];
|
|
bitmask = newData[1];
|
|
thisArg = newData[2];
|
|
partials = newData[3];
|
|
holders = newData[4];
|
|
arity = newData[9] = newData[9] === undefined
|
|
? (isBindKey ? 0 : func.length)
|
|
: nativeMax(newData[9] - length, 0);
|
|
|
|
if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
|
|
bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
|
|
}
|
|
if (!bitmask || bitmask == WRAP_BIND_FLAG) {
|
|
var result = createBind(func, bitmask, thisArg);
|
|
} else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {
|
|
result = createCurry(func, bitmask, arity);
|
|
} else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {
|
|
result = createPartial(func, bitmask, thisArg, partials);
|
|
} else {
|
|
result = createHybrid.apply(undefined, newData);
|
|
}
|
|
var setter = data ? baseSetData : setData;
|
|
return setWrapToString(setter(result, newData), func, bitmask);
|
|
}
|
|
|
|
/**
|
|
* Used by `_.defaults` to customize its `_.assignIn` use to assign properties
|
|
* of source objects to the destination object for all destination properties
|
|
* that resolve to `undefined`.
|
|
*
|
|
* @private
|
|
* @param {*} objValue The destination value.
|
|
* @param {*} srcValue The source value.
|
|
* @param {string} key The key of the property to assign.
|
|
* @param {Object} object The parent object of `objValue`.
|
|
* @returns {*} Returns the value to assign.
|
|
*/
|
|
function customDefaultsAssignIn(objValue, srcValue, key, object) {
|
|
if (objValue === undefined ||
|
|
(eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
|
|
return srcValue;
|
|
}
|
|
return objValue;
|
|
}
|
|
|
|
/**
|
|
* Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
|
|
* objects into destination objects that are passed thru.
|
|
*
|
|
* @private
|
|
* @param {*} objValue The destination value.
|
|
* @param {*} srcValue The source value.
|
|
* @param {string} key The key of the property to merge.
|
|
* @param {Object} object The parent object of `objValue`.
|
|
* @param {Object} source The parent object of `srcValue`.
|
|
* @param {Object} [stack] Tracks traversed source values and their merged
|
|
* counterparts.
|
|
* @returns {*} Returns the value to assign.
|
|
*/
|
|
function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
|
|
if (isObject(objValue) && isObject(srcValue)) {
|
|
// Recursively merge objects and arrays (susceptible to call stack limits).
|
|
stack.set(srcValue, objValue);
|
|
baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
|
|
stack['delete'](srcValue);
|
|
}
|
|
return objValue;
|
|
}
|
|
|
|
/**
|
|
* Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
|
|
* objects.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to inspect.
|
|
* @param {string} key The key of the property to inspect.
|
|
* @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
|
|
*/
|
|
function customOmitClone(value) {
|
|
return isPlainObject(value) ? undefined : value;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseIsEqualDeep` for arrays with support for
|
|
* partial deep comparisons.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to compare.
|
|
* @param {Array} other The other array to compare.
|
|
* @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
|
|
* @param {Function} customizer The function to customize comparisons.
|
|
* @param {Function} equalFunc The function to determine equivalents of values.
|
|
* @param {Object} stack Tracks traversed `array` and `other` objects.
|
|
* @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
|
|
*/
|
|
function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
|
|
var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
|
|
arrLength = array.length,
|
|
othLength = other.length;
|
|
|
|
if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
|
|
return false;
|
|
}
|
|
// Check that cyclic values are equal.
|
|
var arrStacked = stack.get(array);
|
|
var othStacked = stack.get(other);
|
|
if (arrStacked && othStacked) {
|
|
return arrStacked == other && othStacked == array;
|
|
}
|
|
var index = -1,
|
|
result = true,
|
|
seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;
|
|
|
|
stack.set(array, other);
|
|
stack.set(other, array);
|
|
|
|
// Ignore non-index properties.
|
|
while (++index < arrLength) {
|
|
var arrValue = array[index],
|
|
othValue = other[index];
|
|
|
|
if (customizer) {
|
|
var compared = isPartial
|
|
? customizer(othValue, arrValue, index, other, array, stack)
|
|
: customizer(arrValue, othValue, index, array, other, stack);
|
|
}
|
|
if (compared !== undefined) {
|
|
if (compared) {
|
|
continue;
|
|
}
|
|
result = false;
|
|
break;
|
|
}
|
|
// Recursively compare arrays (susceptible to call stack limits).
|
|
if (seen) {
|
|
if (!arraySome(other, function(othValue, othIndex) {
|
|
if (!cacheHas(seen, othIndex) &&
|
|
(arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
|
|
return seen.push(othIndex);
|
|
}
|
|
})) {
|
|
result = false;
|
|
break;
|
|
}
|
|
} else if (!(
|
|
arrValue === othValue ||
|
|
equalFunc(arrValue, othValue, bitmask, customizer, stack)
|
|
)) {
|
|
result = false;
|
|
break;
|
|
}
|
|
}
|
|
stack['delete'](array);
|
|
stack['delete'](other);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseIsEqualDeep` for comparing objects of
|
|
* the same `toStringTag`.
|
|
*
|
|
* **Note:** This function only supports comparing values with tags of
|
|
* `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to compare.
|
|
* @param {Object} other The other object to compare.
|
|
* @param {string} tag The `toStringTag` of the objects to compare.
|
|
* @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
|
|
* @param {Function} customizer The function to customize comparisons.
|
|
* @param {Function} equalFunc The function to determine equivalents of values.
|
|
* @param {Object} stack Tracks traversed `object` and `other` objects.
|
|
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
|
|
*/
|
|
function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
|
|
switch (tag) {
|
|
case dataViewTag:
|
|
if ((object.byteLength != other.byteLength) ||
|
|
(object.byteOffset != other.byteOffset)) {
|
|
return false;
|
|
}
|
|
object = object.buffer;
|
|
other = other.buffer;
|
|
|
|
case arrayBufferTag:
|
|
if ((object.byteLength != other.byteLength) ||
|
|
!equalFunc(new Uint8Array(object), new Uint8Array(other))) {
|
|
return false;
|
|
}
|
|
return true;
|
|
|
|
case boolTag:
|
|
case dateTag:
|
|
case numberTag:
|
|
// Coerce booleans to `1` or `0` and dates to milliseconds.
|
|
// Invalid dates are coerced to `NaN`.
|
|
return eq(+object, +other);
|
|
|
|
case errorTag:
|
|
return object.name == other.name && object.message == other.message;
|
|
|
|
case regexpTag:
|
|
case stringTag:
|
|
// Coerce regexes to strings and treat strings, primitives and objects,
|
|
// as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
|
|
// for more details.
|
|
return object == (other + '');
|
|
|
|
case mapTag:
|
|
var convert = mapToArray;
|
|
|
|
case setTag:
|
|
var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
|
|
convert || (convert = setToArray);
|
|
|
|
if (object.size != other.size && !isPartial) {
|
|
return false;
|
|
}
|
|
// Assume cyclic values are equal.
|
|
var stacked = stack.get(object);
|
|
if (stacked) {
|
|
return stacked == other;
|
|
}
|
|
bitmask |= COMPARE_UNORDERED_FLAG;
|
|
|
|
// Recursively compare objects (susceptible to call stack limits).
|
|
stack.set(object, other);
|
|
var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
|
|
stack['delete'](object);
|
|
return result;
|
|
|
|
case symbolTag:
|
|
if (symbolValueOf) {
|
|
return symbolValueOf.call(object) == symbolValueOf.call(other);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseIsEqualDeep` for objects with support for
|
|
* partial deep comparisons.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to compare.
|
|
* @param {Object} other The other object to compare.
|
|
* @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
|
|
* @param {Function} customizer The function to customize comparisons.
|
|
* @param {Function} equalFunc The function to determine equivalents of values.
|
|
* @param {Object} stack Tracks traversed `object` and `other` objects.
|
|
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
|
|
*/
|
|
function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
|
|
var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
|
|
objProps = getAllKeys(object),
|
|
objLength = objProps.length,
|
|
othProps = getAllKeys(other),
|
|
othLength = othProps.length;
|
|
|
|
if (objLength != othLength && !isPartial) {
|
|
return false;
|
|
}
|
|
var index = objLength;
|
|
while (index--) {
|
|
var key = objProps[index];
|
|
if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
|
|
return false;
|
|
}
|
|
}
|
|
// Check that cyclic values are equal.
|
|
var objStacked = stack.get(object);
|
|
var othStacked = stack.get(other);
|
|
if (objStacked && othStacked) {
|
|
return objStacked == other && othStacked == object;
|
|
}
|
|
var result = true;
|
|
stack.set(object, other);
|
|
stack.set(other, object);
|
|
|
|
var skipCtor = isPartial;
|
|
while (++index < objLength) {
|
|
key = objProps[index];
|
|
var objValue = object[key],
|
|
othValue = other[key];
|
|
|
|
if (customizer) {
|
|
var compared = isPartial
|
|
? customizer(othValue, objValue, key, other, object, stack)
|
|
: customizer(objValue, othValue, key, object, other, stack);
|
|
}
|
|
// Recursively compare objects (susceptible to call stack limits).
|
|
if (!(compared === undefined
|
|
? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
|
|
: compared
|
|
)) {
|
|
result = false;
|
|
break;
|
|
}
|
|
skipCtor || (skipCtor = key == 'constructor');
|
|
}
|
|
if (result && !skipCtor) {
|
|
var objCtor = object.constructor,
|
|
othCtor = other.constructor;
|
|
|
|
// Non `Object` object instances with different constructors are not equal.
|
|
if (objCtor != othCtor &&
|
|
('constructor' in object && 'constructor' in other) &&
|
|
!(typeof objCtor == 'function' && objCtor instanceof objCtor &&
|
|
typeof othCtor == 'function' && othCtor instanceof othCtor)) {
|
|
result = false;
|
|
}
|
|
}
|
|
stack['delete'](object);
|
|
stack['delete'](other);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseRest` which flattens the rest array.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to apply a rest parameter to.
|
|
* @returns {Function} Returns the new function.
|
|
*/
|
|
function flatRest(func) {
|
|
return setToString(overRest(func, undefined, flatten), func + '');
|
|
}
|
|
|
|
/**
|
|
* Creates an array of own enumerable property names and symbols of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property names and symbols.
|
|
*/
|
|
function getAllKeys(object) {
|
|
return baseGetAllKeys(object, keys, getSymbols);
|
|
}
|
|
|
|
/**
|
|
* Creates an array of own and inherited enumerable property names and
|
|
* symbols of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property names and symbols.
|
|
*/
|
|
function getAllKeysIn(object) {
|
|
return baseGetAllKeys(object, keysIn, getSymbolsIn);
|
|
}
|
|
|
|
/**
|
|
* Gets metadata for `func`.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to query.
|
|
* @returns {*} Returns the metadata for `func`.
|
|
*/
|
|
var getData = !metaMap ? noop : function(func) {
|
|
return metaMap.get(func);
|
|
};
|
|
|
|
/**
|
|
* Gets the name of `func`.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to query.
|
|
* @returns {string} Returns the function name.
|
|
*/
|
|
function getFuncName(func) {
|
|
var result = (func.name + ''),
|
|
array = realNames[result],
|
|
length = hasOwnProperty.call(realNames, result) ? array.length : 0;
|
|
|
|
while (length--) {
|
|
var data = array[length],
|
|
otherFunc = data.func;
|
|
if (otherFunc == null || otherFunc == func) {
|
|
return data.name;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Gets the argument placeholder value for `func`.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to inspect.
|
|
* @returns {*} Returns the placeholder value.
|
|
*/
|
|
function getHolder(func) {
|
|
var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
|
|
return object.placeholder;
|
|
}
|
|
|
|
/**
|
|
* Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
|
|
* this function returns the custom method, otherwise it returns `baseIteratee`.
|
|
* If arguments are provided, the chosen function is invoked with them and
|
|
* its result is returned.
|
|
*
|
|
* @private
|
|
* @param {*} [value] The value to convert to an iteratee.
|
|
* @param {number} [arity] The arity of the created iteratee.
|
|
* @returns {Function} Returns the chosen function or its result.
|
|
*/
|
|
function getIteratee() {
|
|
var result = lodash.iteratee || iteratee;
|
|
result = result === iteratee ? baseIteratee : result;
|
|
return arguments.length ? result(arguments[0], arguments[1]) : result;
|
|
}
|
|
|
|
/**
|
|
* Gets the data for `map`.
|
|
*
|
|
* @private
|
|
* @param {Object} map The map to query.
|
|
* @param {string} key The reference key.
|
|
* @returns {*} Returns the map data.
|
|
*/
|
|
function getMapData(map, key) {
|
|
var data = map.__data__;
|
|
return isKeyable(key)
|
|
? data[typeof key == 'string' ? 'string' : 'hash']
|
|
: data.map;
|
|
}
|
|
|
|
/**
|
|
* Gets the property names, values, and compare flags of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the match data of `object`.
|
|
*/
|
|
function getMatchData(object) {
|
|
var result = keys(object),
|
|
length = result.length;
|
|
|
|
while (length--) {
|
|
var key = result[length],
|
|
value = object[key];
|
|
|
|
result[length] = [key, value, isStrictComparable(value)];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Gets the native function at `key` of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {string} key The key of the method to get.
|
|
* @returns {*} Returns the function if it's native, else `undefined`.
|
|
*/
|
|
function getNative(object, key) {
|
|
var value = getValue(object, key);
|
|
return baseIsNative(value) ? value : undefined;
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to query.
|
|
* @returns {string} Returns the raw `toStringTag`.
|
|
*/
|
|
function getRawTag(value) {
|
|
var isOwn = hasOwnProperty.call(value, symToStringTag),
|
|
tag = value[symToStringTag];
|
|
|
|
try {
|
|
value[symToStringTag] = undefined;
|
|
var unmasked = true;
|
|
} catch (e) {}
|
|
|
|
var result = nativeObjectToString.call(value);
|
|
if (unmasked) {
|
|
if (isOwn) {
|
|
value[symToStringTag] = tag;
|
|
} else {
|
|
delete value[symToStringTag];
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates an array of the own enumerable symbols of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of symbols.
|
|
*/
|
|
var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
|
|
if (object == null) {
|
|
return [];
|
|
}
|
|
object = Object(object);
|
|
return arrayFilter(nativeGetSymbols(object), function(symbol) {
|
|
return propertyIsEnumerable.call(object, symbol);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Creates an array of the own and inherited enumerable symbols of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of symbols.
|
|
*/
|
|
var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
|
|
var result = [];
|
|
while (object) {
|
|
arrayPush(result, getSymbols(object));
|
|
object = getPrototype(object);
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Gets the `toStringTag` of `value`.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to query.
|
|
* @returns {string} Returns the `toStringTag`.
|
|
*/
|
|
var getTag = baseGetTag;
|
|
|
|
// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
|
|
if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
|
|
(Map && getTag(new Map) != mapTag) ||
|
|
(Promise && getTag(Promise.resolve()) != promiseTag) ||
|
|
(Set && getTag(new Set) != setTag) ||
|
|
(WeakMap && getTag(new WeakMap) != weakMapTag)) {
|
|
getTag = function(value) {
|
|
var result = baseGetTag(value),
|
|
Ctor = result == objectTag ? value.constructor : undefined,
|
|
ctorString = Ctor ? toSource(Ctor) : '';
|
|
|
|
if (ctorString) {
|
|
switch (ctorString) {
|
|
case dataViewCtorString: return dataViewTag;
|
|
case mapCtorString: return mapTag;
|
|
case promiseCtorString: return promiseTag;
|
|
case setCtorString: return setTag;
|
|
case weakMapCtorString: return weakMapTag;
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Gets the view, applying any `transforms` to the `start` and `end` positions.
|
|
*
|
|
* @private
|
|
* @param {number} start The start of the view.
|
|
* @param {number} end The end of the view.
|
|
* @param {Array} transforms The transformations to apply to the view.
|
|
* @returns {Object} Returns an object containing the `start` and `end`
|
|
* positions of the view.
|
|
*/
|
|
function getView(start, end, transforms) {
|
|
var index = -1,
|
|
length = transforms.length;
|
|
|
|
while (++index < length) {
|
|
var data = transforms[index],
|
|
size = data.size;
|
|
|
|
switch (data.type) {
|
|
case 'drop': start += size; break;
|
|
case 'dropRight': end -= size; break;
|
|
case 'take': end = nativeMin(end, start + size); break;
|
|
case 'takeRight': start = nativeMax(start, end - size); break;
|
|
}
|
|
}
|
|
return { 'start': start, 'end': end };
|
|
}
|
|
|
|
/**
|
|
* Extracts wrapper details from the `source` body comment.
|
|
*
|
|
* @private
|
|
* @param {string} source The source to inspect.
|
|
* @returns {Array} Returns the wrapper details.
|
|
*/
|
|
function getWrapDetails(source) {
|
|
var match = source.match(reWrapDetails);
|
|
return match ? match[1].split(reSplitDetails) : [];
|
|
}
|
|
|
|
/**
|
|
* Checks if `path` exists on `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path to check.
|
|
* @param {Function} hasFunc The function to check properties.
|
|
* @returns {boolean} Returns `true` if `path` exists, else `false`.
|
|
*/
|
|
function hasPath(object, path, hasFunc) {
|
|
path = castPath(path, object);
|
|
|
|
var index = -1,
|
|
length = path.length,
|
|
result = false;
|
|
|
|
while (++index < length) {
|
|
var key = toKey(path[index]);
|
|
if (!(result = object != null && hasFunc(object, key))) {
|
|
break;
|
|
}
|
|
object = object[key];
|
|
}
|
|
if (result || ++index != length) {
|
|
return result;
|
|
}
|
|
length = object == null ? 0 : object.length;
|
|
return !!length && isLength(length) && isIndex(key, length) &&
|
|
(isArray(object) || isArguments(object));
|
|
}
|
|
|
|
/**
|
|
* Initializes an array clone.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to clone.
|
|
* @returns {Array} Returns the initialized clone.
|
|
*/
|
|
function initCloneArray(array) {
|
|
var length = array.length,
|
|
result = new array.constructor(length);
|
|
|
|
// Add properties assigned by `RegExp#exec`.
|
|
if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
|
|
result.index = array.index;
|
|
result.input = array.input;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Initializes an object clone.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to clone.
|
|
* @returns {Object} Returns the initialized clone.
|
|
*/
|
|
function initCloneObject(object) {
|
|
return (typeof object.constructor == 'function' && !isPrototype(object))
|
|
? baseCreate(getPrototype(object))
|
|
: {};
|
|
}
|
|
|
|
/**
|
|
* Initializes an object clone based on its `toStringTag`.
|
|
*
|
|
* **Note:** This function only supports cloning values with tags of
|
|
* `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to clone.
|
|
* @param {string} tag The `toStringTag` of the object to clone.
|
|
* @param {boolean} [isDeep] Specify a deep clone.
|
|
* @returns {Object} Returns the initialized clone.
|
|
*/
|
|
function initCloneByTag(object, tag, isDeep) {
|
|
var Ctor = object.constructor;
|
|
switch (tag) {
|
|
case arrayBufferTag:
|
|
return cloneArrayBuffer(object);
|
|
|
|
case boolTag:
|
|
case dateTag:
|
|
return new Ctor(+object);
|
|
|
|
case dataViewTag:
|
|
return cloneDataView(object, isDeep);
|
|
|
|
case float32Tag: case float64Tag:
|
|
case int8Tag: case int16Tag: case int32Tag:
|
|
case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
|
|
return cloneTypedArray(object, isDeep);
|
|
|
|
case mapTag:
|
|
return new Ctor;
|
|
|
|
case numberTag:
|
|
case stringTag:
|
|
return new Ctor(object);
|
|
|
|
case regexpTag:
|
|
return cloneRegExp(object);
|
|
|
|
case setTag:
|
|
return new Ctor;
|
|
|
|
case symbolTag:
|
|
return cloneSymbol(object);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Inserts wrapper `details` in a comment at the top of the `source` body.
|
|
*
|
|
* @private
|
|
* @param {string} source The source to modify.
|
|
* @returns {Array} details The details to insert.
|
|
* @returns {string} Returns the modified source.
|
|
*/
|
|
function insertWrapDetails(source, details) {
|
|
var length = details.length;
|
|
if (!length) {
|
|
return source;
|
|
}
|
|
var lastIndex = length - 1;
|
|
details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
|
|
details = details.join(length > 2 ? ', ' : ' ');
|
|
return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n');
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a flattenable `arguments` object or array.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
|
|
*/
|
|
function isFlattenable(value) {
|
|
return isArray(value) || isArguments(value) ||
|
|
!!(spreadableSymbol && value && value[spreadableSymbol]);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a valid array-like index.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
|
|
* @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
|
|
*/
|
|
function isIndex(value, length) {
|
|
var type = typeof value;
|
|
length = length == null ? MAX_SAFE_INTEGER : length;
|
|
|
|
return !!length &&
|
|
(type == 'number' ||
|
|
(type != 'symbol' && reIsUint.test(value))) &&
|
|
(value > -1 && value % 1 == 0 && value < length);
|
|
}
|
|
|
|
/**
|
|
* Checks if the given arguments are from an iteratee call.
|
|
*
|
|
* @private
|
|
* @param {*} value The potential iteratee value argument.
|
|
* @param {*} index The potential iteratee index or key argument.
|
|
* @param {*} object The potential iteratee object argument.
|
|
* @returns {boolean} Returns `true` if the arguments are from an iteratee call,
|
|
* else `false`.
|
|
*/
|
|
function isIterateeCall(value, index, object) {
|
|
if (!isObject(object)) {
|
|
return false;
|
|
}
|
|
var type = typeof index;
|
|
if (type == 'number'
|
|
? (isArrayLike(object) && isIndex(index, object.length))
|
|
: (type == 'string' && index in object)
|
|
) {
|
|
return eq(object[index], value);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a property name and not a property path.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @param {Object} [object] The object to query keys on.
|
|
* @returns {boolean} Returns `true` if `value` is a property name, else `false`.
|
|
*/
|
|
function isKey(value, object) {
|
|
if (isArray(value)) {
|
|
return false;
|
|
}
|
|
var type = typeof value;
|
|
if (type == 'number' || type == 'symbol' || type == 'boolean' ||
|
|
value == null || isSymbol(value)) {
|
|
return true;
|
|
}
|
|
return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
|
|
(object != null && value in Object(object));
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is suitable for use as unique object key.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is suitable, else `false`.
|
|
*/
|
|
function isKeyable(value) {
|
|
var type = typeof value;
|
|
return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
|
|
? (value !== '__proto__')
|
|
: (value === null);
|
|
}
|
|
|
|
/**
|
|
* Checks if `func` has a lazy counterpart.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to check.
|
|
* @returns {boolean} Returns `true` if `func` has a lazy counterpart,
|
|
* else `false`.
|
|
*/
|
|
function isLaziable(func) {
|
|
var funcName = getFuncName(func),
|
|
other = lodash[funcName];
|
|
|
|
if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
|
|
return false;
|
|
}
|
|
if (func === other) {
|
|
return true;
|
|
}
|
|
var data = getData(other);
|
|
return !!data && func === data[0];
|
|
}
|
|
|
|
/**
|
|
* Checks if `func` has its source masked.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to check.
|
|
* @returns {boolean} Returns `true` if `func` is masked, else `false`.
|
|
*/
|
|
function isMasked(func) {
|
|
return !!maskSrcKey && (maskSrcKey in func);
|
|
}
|
|
|
|
/**
|
|
* Checks if `func` is capable of being masked.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `func` is maskable, else `false`.
|
|
*/
|
|
var isMaskable = coreJsData ? isFunction : stubFalse;
|
|
|
|
/**
|
|
* Checks if `value` is likely a prototype object.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
|
|
*/
|
|
function isPrototype(value) {
|
|
var Ctor = value && value.constructor,
|
|
proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
|
|
|
|
return value === proto;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` if suitable for strict
|
|
* equality comparisons, else `false`.
|
|
*/
|
|
function isStrictComparable(value) {
|
|
return value === value && !isObject(value);
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `matchesProperty` for source values suitable
|
|
* for strict equality comparisons, i.e. `===`.
|
|
*
|
|
* @private
|
|
* @param {string} key The key of the property to get.
|
|
* @param {*} srcValue The value to match.
|
|
* @returns {Function} Returns the new spec function.
|
|
*/
|
|
function matchesStrictComparable(key, srcValue) {
|
|
return function(object) {
|
|
if (object == null) {
|
|
return false;
|
|
}
|
|
return object[key] === srcValue &&
|
|
(srcValue !== undefined || (key in Object(object)));
|
|
};
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.memoize` which clears the memoized function's
|
|
* cache when it exceeds `MAX_MEMOIZE_SIZE`.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to have its output memoized.
|
|
* @returns {Function} Returns the new memoized function.
|
|
*/
|
|
function memoizeCapped(func) {
|
|
var result = memoize(func, function(key) {
|
|
if (cache.size === MAX_MEMOIZE_SIZE) {
|
|
cache.clear();
|
|
}
|
|
return key;
|
|
});
|
|
|
|
var cache = result.cache;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Merges the function metadata of `source` into `data`.
|
|
*
|
|
* Merging metadata reduces the number of wrappers used to invoke a function.
|
|
* This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
|
|
* may be applied regardless of execution order. Methods like `_.ary` and
|
|
* `_.rearg` modify function arguments, making the order in which they are
|
|
* executed important, preventing the merging of metadata. However, we make
|
|
* an exception for a safe combined case where curried functions have `_.ary`
|
|
* and or `_.rearg` applied.
|
|
*
|
|
* @private
|
|
* @param {Array} data The destination metadata.
|
|
* @param {Array} source The source metadata.
|
|
* @returns {Array} Returns `data`.
|
|
*/
|
|
function mergeData(data, source) {
|
|
var bitmask = data[1],
|
|
srcBitmask = source[1],
|
|
newBitmask = bitmask | srcBitmask,
|
|
isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);
|
|
|
|
var isCombo =
|
|
((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
|
|
((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
|
|
((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));
|
|
|
|
// Exit early if metadata can't be merged.
|
|
if (!(isCommon || isCombo)) {
|
|
return data;
|
|
}
|
|
// Use source `thisArg` if available.
|
|
if (srcBitmask & WRAP_BIND_FLAG) {
|
|
data[2] = source[2];
|
|
// Set when currying a bound function.
|
|
newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
|
|
}
|
|
// Compose partial arguments.
|
|
var value = source[3];
|
|
if (value) {
|
|
var partials = data[3];
|
|
data[3] = partials ? composeArgs(partials, value, source[4]) : value;
|
|
data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
|
|
}
|
|
// Compose partial right arguments.
|
|
value = source[5];
|
|
if (value) {
|
|
partials = data[5];
|
|
data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
|
|
data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
|
|
}
|
|
// Use source `argPos` if available.
|
|
value = source[7];
|
|
if (value) {
|
|
data[7] = value;
|
|
}
|
|
// Use source `ary` if it's smaller.
|
|
if (srcBitmask & WRAP_ARY_FLAG) {
|
|
data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
|
|
}
|
|
// Use source `arity` if one is not provided.
|
|
if (data[9] == null) {
|
|
data[9] = source[9];
|
|
}
|
|
// Use source `func` and merge bitmasks.
|
|
data[0] = source[0];
|
|
data[1] = newBitmask;
|
|
|
|
return data;
|
|
}
|
|
|
|
/**
|
|
* This function is like
|
|
* [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
|
|
* except that it includes inherited enumerable properties.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property names.
|
|
*/
|
|
function nativeKeysIn(object) {
|
|
var result = [];
|
|
if (object != null) {
|
|
for (var key in Object(object)) {
|
|
result.push(key);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to a string using `Object.prototype.toString`.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to convert.
|
|
* @returns {string} Returns the converted string.
|
|
*/
|
|
function objectToString(value) {
|
|
return nativeObjectToString.call(value);
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `baseRest` which transforms the rest array.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to apply a rest parameter to.
|
|
* @param {number} [start=func.length-1] The start position of the rest parameter.
|
|
* @param {Function} transform The rest array transform.
|
|
* @returns {Function} Returns the new function.
|
|
*/
|
|
function overRest(func, start, transform) {
|
|
start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
|
|
return function() {
|
|
var args = arguments,
|
|
index = -1,
|
|
length = nativeMax(args.length - start, 0),
|
|
array = Array(length);
|
|
|
|
while (++index < length) {
|
|
array[index] = args[start + index];
|
|
}
|
|
index = -1;
|
|
var otherArgs = Array(start + 1);
|
|
while (++index < start) {
|
|
otherArgs[index] = args[index];
|
|
}
|
|
otherArgs[start] = transform(array);
|
|
return apply(func, this, otherArgs);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Gets the parent value at `path` of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {Array} path The path to get the parent value of.
|
|
* @returns {*} Returns the parent value.
|
|
*/
|
|
function parent(object, path) {
|
|
return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));
|
|
}
|
|
|
|
/**
|
|
* Reorder `array` according to the specified indexes where the element at
|
|
* the first index is assigned as the first element, the element at
|
|
* the second index is assigned as the second element, and so on.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to reorder.
|
|
* @param {Array} indexes The arranged array indexes.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function reorder(array, indexes) {
|
|
var arrLength = array.length,
|
|
length = nativeMin(indexes.length, arrLength),
|
|
oldArray = copyArray(array);
|
|
|
|
while (length--) {
|
|
var index = indexes[length];
|
|
array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* Gets the value at `key`, unless `key` is "__proto__" or "constructor".
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {string} key The key of the property to get.
|
|
* @returns {*} Returns the property value.
|
|
*/
|
|
function safeGet(object, key) {
|
|
if (key === 'constructor' && typeof object[key] === 'function') {
|
|
return;
|
|
}
|
|
|
|
if (key == '__proto__') {
|
|
return;
|
|
}
|
|
|
|
return object[key];
|
|
}
|
|
|
|
/**
|
|
* Sets metadata for `func`.
|
|
*
|
|
* **Note:** If this function becomes hot, i.e. is invoked a lot in a short
|
|
* period of time, it will trip its breaker and transition to an identity
|
|
* function to avoid garbage collection pauses in V8. See
|
|
* [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
|
|
* for more details.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to associate metadata with.
|
|
* @param {*} data The metadata.
|
|
* @returns {Function} Returns `func`.
|
|
*/
|
|
var setData = shortOut(baseSetData);
|
|
|
|
/**
|
|
* A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to delay.
|
|
* @param {number} wait The number of milliseconds to delay invocation.
|
|
* @returns {number|Object} Returns the timer id or timeout object.
|
|
*/
|
|
var setTimeout = ctxSetTimeout || function(func, wait) {
|
|
return root.setTimeout(func, wait);
|
|
};
|
|
|
|
/**
|
|
* Sets the `toString` method of `func` to return `string`.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to modify.
|
|
* @param {Function} string The `toString` result.
|
|
* @returns {Function} Returns `func`.
|
|
*/
|
|
var setToString = shortOut(baseSetToString);
|
|
|
|
/**
|
|
* Sets the `toString` method of `wrapper` to mimic the source of `reference`
|
|
* with wrapper details in a comment at the top of the source body.
|
|
*
|
|
* @private
|
|
* @param {Function} wrapper The function to modify.
|
|
* @param {Function} reference The reference function.
|
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
|
* @returns {Function} Returns `wrapper`.
|
|
*/
|
|
function setWrapToString(wrapper, reference, bitmask) {
|
|
var source = (reference + '');
|
|
return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
|
|
}
|
|
|
|
/**
|
|
* Creates a function that'll short out and invoke `identity` instead
|
|
* of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
|
|
* milliseconds.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to restrict.
|
|
* @returns {Function} Returns the new shortable function.
|
|
*/
|
|
function shortOut(func) {
|
|
var count = 0,
|
|
lastCalled = 0;
|
|
|
|
return function() {
|
|
var stamp = nativeNow(),
|
|
remaining = HOT_SPAN - (stamp - lastCalled);
|
|
|
|
lastCalled = stamp;
|
|
if (remaining > 0) {
|
|
if (++count >= HOT_COUNT) {
|
|
return arguments[0];
|
|
}
|
|
} else {
|
|
count = 0;
|
|
}
|
|
return func.apply(undefined, arguments);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* A specialized version of `_.shuffle` which mutates and sets the size of `array`.
|
|
*
|
|
* @private
|
|
* @param {Array} array The array to shuffle.
|
|
* @param {number} [size=array.length] The size of `array`.
|
|
* @returns {Array} Returns `array`.
|
|
*/
|
|
function shuffleSelf(array, size) {
|
|
var index = -1,
|
|
length = array.length,
|
|
lastIndex = length - 1;
|
|
|
|
size = size === undefined ? length : size;
|
|
while (++index < size) {
|
|
var rand = baseRandom(index, lastIndex),
|
|
value = array[rand];
|
|
|
|
array[rand] = array[index];
|
|
array[index] = value;
|
|
}
|
|
array.length = size;
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* Converts `string` to a property path array.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to convert.
|
|
* @returns {Array} Returns the property path array.
|
|
*/
|
|
var stringToPath = memoizeCapped(function(string) {
|
|
var result = [];
|
|
if (string.charCodeAt(0) === 46 /* . */) {
|
|
result.push('');
|
|
}
|
|
string.replace(rePropName, function(match, number, quote, subString) {
|
|
result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));
|
|
});
|
|
return result;
|
|
});
|
|
|
|
/**
|
|
* Converts `value` to a string key if it's not a string or symbol.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to inspect.
|
|
* @returns {string|symbol} Returns the key.
|
|
*/
|
|
function toKey(value) {
|
|
if (typeof value == 'string' || isSymbol(value)) {
|
|
return value;
|
|
}
|
|
var result = (value + '');
|
|
return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
|
|
}
|
|
|
|
/**
|
|
* Converts `func` to its source code.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to convert.
|
|
* @returns {string} Returns the source code.
|
|
*/
|
|
function toSource(func) {
|
|
if (func != null) {
|
|
try {
|
|
return funcToString.call(func);
|
|
} catch (e) {}
|
|
try {
|
|
return (func + '');
|
|
} catch (e) {}
|
|
}
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Updates wrapper `details` based on `bitmask` flags.
|
|
*
|
|
* @private
|
|
* @returns {Array} details The details to modify.
|
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
|
* @returns {Array} Returns `details`.
|
|
*/
|
|
function updateWrapDetails(details, bitmask) {
|
|
arrayEach(wrapFlags, function(pair) {
|
|
var value = '_.' + pair[0];
|
|
if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
|
|
details.push(value);
|
|
}
|
|
});
|
|
return details.sort();
|
|
}
|
|
|
|
/**
|
|
* Creates a clone of `wrapper`.
|
|
*
|
|
* @private
|
|
* @param {Object} wrapper The wrapper to clone.
|
|
* @returns {Object} Returns the cloned wrapper.
|
|
*/
|
|
function wrapperClone(wrapper) {
|
|
if (wrapper instanceof LazyWrapper) {
|
|
return wrapper.clone();
|
|
}
|
|
var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
|
|
result.__actions__ = copyArray(wrapper.__actions__);
|
|
result.__index__ = wrapper.__index__;
|
|
result.__values__ = wrapper.__values__;
|
|
return result;
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates an array of elements split into groups the length of `size`.
|
|
* If `array` can't be split evenly, the final chunk will be the remaining
|
|
* elements.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to process.
|
|
* @param {number} [size=1] The length of each chunk
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Array} Returns the new array of chunks.
|
|
* @example
|
|
*
|
|
* _.chunk(['a', 'b', 'c', 'd'], 2);
|
|
* // => [['a', 'b'], ['c', 'd']]
|
|
*
|
|
* _.chunk(['a', 'b', 'c', 'd'], 3);
|
|
* // => [['a', 'b', 'c'], ['d']]
|
|
*/
|
|
function chunk(array, size, guard) {
|
|
if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
|
|
size = 1;
|
|
} else {
|
|
size = nativeMax(toInteger(size), 0);
|
|
}
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length || size < 1) {
|
|
return [];
|
|
}
|
|
var index = 0,
|
|
resIndex = 0,
|
|
result = Array(nativeCeil(length / size));
|
|
|
|
while (index < length) {
|
|
result[resIndex++] = baseSlice(array, index, (index += size));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates an array with all falsey values removed. The values `false`, `null`,
|
|
* `0`, `""`, `undefined`, and `NaN` are falsey.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to compact.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
* @example
|
|
*
|
|
* _.compact([0, 1, false, 2, '', 3]);
|
|
* // => [1, 2, 3]
|
|
*/
|
|
function compact(array) {
|
|
var index = -1,
|
|
length = array == null ? 0 : array.length,
|
|
resIndex = 0,
|
|
result = [];
|
|
|
|
while (++index < length) {
|
|
var value = array[index];
|
|
if (value) {
|
|
result[resIndex++] = value;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a new array concatenating `array` with any additional arrays
|
|
* and/or values.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to concatenate.
|
|
* @param {...*} [values] The values to concatenate.
|
|
* @returns {Array} Returns the new concatenated array.
|
|
* @example
|
|
*
|
|
* var array = [1];
|
|
* var other = _.concat(array, 2, [3], [[4]]);
|
|
*
|
|
* console.log(other);
|
|
* // => [1, 2, 3, [4]]
|
|
*
|
|
* console.log(array);
|
|
* // => [1]
|
|
*/
|
|
function concat() {
|
|
var length = arguments.length;
|
|
if (!length) {
|
|
return [];
|
|
}
|
|
var args = Array(length - 1),
|
|
array = arguments[0],
|
|
index = length;
|
|
|
|
while (index--) {
|
|
args[index - 1] = arguments[index];
|
|
}
|
|
return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
|
|
}
|
|
|
|
/**
|
|
* Creates an array of `array` values not included in the other given arrays
|
|
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* for equality comparisons. The order and references of result values are
|
|
* determined by the first array.
|
|
*
|
|
* **Note:** Unlike `_.pullAll`, this method returns a new array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {...Array} [values] The values to exclude.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
* @see _.without, _.xor
|
|
* @example
|
|
*
|
|
* _.difference([2, 1], [2, 3]);
|
|
* // => [1]
|
|
*/
|
|
var difference = baseRest(function(array, values) {
|
|
return isArrayLikeObject(array)
|
|
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
|
|
: [];
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.difference` except that it accepts `iteratee` which
|
|
* is invoked for each element of `array` and `values` to generate the criterion
|
|
* by which they're compared. The order and references of result values are
|
|
* determined by the first array. The iteratee is invoked with one argument:
|
|
* (value).
|
|
*
|
|
* **Note:** Unlike `_.pullAllBy`, this method returns a new array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {...Array} [values] The values to exclude.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
* @example
|
|
*
|
|
* _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
|
|
* // => [1.2]
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
|
|
* // => [{ 'x': 2 }]
|
|
*/
|
|
var differenceBy = baseRest(function(array, values) {
|
|
var iteratee = last(values);
|
|
if (isArrayLikeObject(iteratee)) {
|
|
iteratee = undefined;
|
|
}
|
|
return isArrayLikeObject(array)
|
|
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))
|
|
: [];
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.difference` except that it accepts `comparator`
|
|
* which is invoked to compare elements of `array` to `values`. The order and
|
|
* references of result values are determined by the first array. The comparator
|
|
* is invoked with two arguments: (arrVal, othVal).
|
|
*
|
|
* **Note:** Unlike `_.pullAllWith`, this method returns a new array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {...Array} [values] The values to exclude.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
|
|
*
|
|
* _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
|
|
* // => [{ 'x': 2, 'y': 1 }]
|
|
*/
|
|
var differenceWith = baseRest(function(array, values) {
|
|
var comparator = last(values);
|
|
if (isArrayLikeObject(comparator)) {
|
|
comparator = undefined;
|
|
}
|
|
return isArrayLikeObject(array)
|
|
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
|
|
: [];
|
|
});
|
|
|
|
/**
|
|
* Creates a slice of `array` with `n` elements dropped from the beginning.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.5.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {number} [n=1] The number of elements to drop.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* _.drop([1, 2, 3]);
|
|
* // => [2, 3]
|
|
*
|
|
* _.drop([1, 2, 3], 2);
|
|
* // => [3]
|
|
*
|
|
* _.drop([1, 2, 3], 5);
|
|
* // => []
|
|
*
|
|
* _.drop([1, 2, 3], 0);
|
|
* // => [1, 2, 3]
|
|
*/
|
|
function drop(array, n, guard) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return [];
|
|
}
|
|
n = (guard || n === undefined) ? 1 : toInteger(n);
|
|
return baseSlice(array, n < 0 ? 0 : n, length);
|
|
}
|
|
|
|
/**
|
|
* Creates a slice of `array` with `n` elements dropped from the end.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {number} [n=1] The number of elements to drop.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* _.dropRight([1, 2, 3]);
|
|
* // => [1, 2]
|
|
*
|
|
* _.dropRight([1, 2, 3], 2);
|
|
* // => [1]
|
|
*
|
|
* _.dropRight([1, 2, 3], 5);
|
|
* // => []
|
|
*
|
|
* _.dropRight([1, 2, 3], 0);
|
|
* // => [1, 2, 3]
|
|
*/
|
|
function dropRight(array, n, guard) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return [];
|
|
}
|
|
n = (guard || n === undefined) ? 1 : toInteger(n);
|
|
n = length - n;
|
|
return baseSlice(array, 0, n < 0 ? 0 : n);
|
|
}
|
|
|
|
/**
|
|
* Creates a slice of `array` excluding elements dropped from the end.
|
|
* Elements are dropped until `predicate` returns falsey. The predicate is
|
|
* invoked with three arguments: (value, index, array).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'active': true },
|
|
* { 'user': 'fred', 'active': false },
|
|
* { 'user': 'pebbles', 'active': false }
|
|
* ];
|
|
*
|
|
* _.dropRightWhile(users, function(o) { return !o.active; });
|
|
* // => objects for ['barney']
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
|
|
* // => objects for ['barney', 'fred']
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.dropRightWhile(users, ['active', false]);
|
|
* // => objects for ['barney']
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.dropRightWhile(users, 'active');
|
|
* // => objects for ['barney', 'fred', 'pebbles']
|
|
*/
|
|
function dropRightWhile(array, predicate) {
|
|
return (array && array.length)
|
|
? baseWhile(array, getIteratee(predicate, 3), true, true)
|
|
: [];
|
|
}
|
|
|
|
/**
|
|
* Creates a slice of `array` excluding elements dropped from the beginning.
|
|
* Elements are dropped until `predicate` returns falsey. The predicate is
|
|
* invoked with three arguments: (value, index, array).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'active': false },
|
|
* { 'user': 'fred', 'active': false },
|
|
* { 'user': 'pebbles', 'active': true }
|
|
* ];
|
|
*
|
|
* _.dropWhile(users, function(o) { return !o.active; });
|
|
* // => objects for ['pebbles']
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.dropWhile(users, { 'user': 'barney', 'active': false });
|
|
* // => objects for ['fred', 'pebbles']
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.dropWhile(users, ['active', false]);
|
|
* // => objects for ['pebbles']
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.dropWhile(users, 'active');
|
|
* // => objects for ['barney', 'fred', 'pebbles']
|
|
*/
|
|
function dropWhile(array, predicate) {
|
|
return (array && array.length)
|
|
? baseWhile(array, getIteratee(predicate, 3), true)
|
|
: [];
|
|
}
|
|
|
|
/**
|
|
* Fills elements of `array` with `value` from `start` up to, but not
|
|
* including, `end`.
|
|
*
|
|
* **Note:** This method mutates `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.2.0
|
|
* @category Array
|
|
* @param {Array} array The array to fill.
|
|
* @param {*} value The value to fill `array` with.
|
|
* @param {number} [start=0] The start position.
|
|
* @param {number} [end=array.length] The end position.
|
|
* @returns {Array} Returns `array`.
|
|
* @example
|
|
*
|
|
* var array = [1, 2, 3];
|
|
*
|
|
* _.fill(array, 'a');
|
|
* console.log(array);
|
|
* // => ['a', 'a', 'a']
|
|
*
|
|
* _.fill(Array(3), 2);
|
|
* // => [2, 2, 2]
|
|
*
|
|
* _.fill([4, 6, 8, 10], '*', 1, 3);
|
|
* // => [4, '*', '*', 10]
|
|
*/
|
|
function fill(array, value, start, end) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return [];
|
|
}
|
|
if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
|
|
start = 0;
|
|
end = length;
|
|
}
|
|
return baseFill(array, value, start, end);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.find` except that it returns the index of the first
|
|
* element `predicate` returns truthy for instead of the element itself.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @param {number} [fromIndex=0] The index to search from.
|
|
* @returns {number} Returns the index of the found element, else `-1`.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'active': false },
|
|
* { 'user': 'fred', 'active': false },
|
|
* { 'user': 'pebbles', 'active': true }
|
|
* ];
|
|
*
|
|
* _.findIndex(users, function(o) { return o.user == 'barney'; });
|
|
* // => 0
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.findIndex(users, { 'user': 'fred', 'active': false });
|
|
* // => 1
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.findIndex(users, ['active', false]);
|
|
* // => 0
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.findIndex(users, 'active');
|
|
* // => 2
|
|
*/
|
|
function findIndex(array, predicate, fromIndex) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return -1;
|
|
}
|
|
var index = fromIndex == null ? 0 : toInteger(fromIndex);
|
|
if (index < 0) {
|
|
index = nativeMax(length + index, 0);
|
|
}
|
|
return baseFindIndex(array, getIteratee(predicate, 3), index);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.findIndex` except that it iterates over elements
|
|
* of `collection` from right to left.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @param {number} [fromIndex=array.length-1] The index to search from.
|
|
* @returns {number} Returns the index of the found element, else `-1`.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'active': true },
|
|
* { 'user': 'fred', 'active': false },
|
|
* { 'user': 'pebbles', 'active': false }
|
|
* ];
|
|
*
|
|
* _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
|
|
* // => 2
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.findLastIndex(users, { 'user': 'barney', 'active': true });
|
|
* // => 0
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.findLastIndex(users, ['active', false]);
|
|
* // => 2
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.findLastIndex(users, 'active');
|
|
* // => 0
|
|
*/
|
|
function findLastIndex(array, predicate, fromIndex) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return -1;
|
|
}
|
|
var index = length - 1;
|
|
if (fromIndex !== undefined) {
|
|
index = toInteger(fromIndex);
|
|
index = fromIndex < 0
|
|
? nativeMax(length + index, 0)
|
|
: nativeMin(index, length - 1);
|
|
}
|
|
return baseFindIndex(array, getIteratee(predicate, 3), index, true);
|
|
}
|
|
|
|
/**
|
|
* Flattens `array` a single level deep.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to flatten.
|
|
* @returns {Array} Returns the new flattened array.
|
|
* @example
|
|
*
|
|
* _.flatten([1, [2, [3, [4]], 5]]);
|
|
* // => [1, 2, [3, [4]], 5]
|
|
*/
|
|
function flatten(array) {
|
|
var length = array == null ? 0 : array.length;
|
|
return length ? baseFlatten(array, 1) : [];
|
|
}
|
|
|
|
/**
|
|
* Recursively flattens `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to flatten.
|
|
* @returns {Array} Returns the new flattened array.
|
|
* @example
|
|
*
|
|
* _.flattenDeep([1, [2, [3, [4]], 5]]);
|
|
* // => [1, 2, 3, 4, 5]
|
|
*/
|
|
function flattenDeep(array) {
|
|
var length = array == null ? 0 : array.length;
|
|
return length ? baseFlatten(array, INFINITY) : [];
|
|
}
|
|
|
|
/**
|
|
* Recursively flatten `array` up to `depth` times.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.4.0
|
|
* @category Array
|
|
* @param {Array} array The array to flatten.
|
|
* @param {number} [depth=1] The maximum recursion depth.
|
|
* @returns {Array} Returns the new flattened array.
|
|
* @example
|
|
*
|
|
* var array = [1, [2, [3, [4]], 5]];
|
|
*
|
|
* _.flattenDepth(array, 1);
|
|
* // => [1, 2, [3, [4]], 5]
|
|
*
|
|
* _.flattenDepth(array, 2);
|
|
* // => [1, 2, 3, [4], 5]
|
|
*/
|
|
function flattenDepth(array, depth) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return [];
|
|
}
|
|
depth = depth === undefined ? 1 : toInteger(depth);
|
|
return baseFlatten(array, depth);
|
|
}
|
|
|
|
/**
|
|
* The inverse of `_.toPairs`; this method returns an object composed
|
|
* from key-value `pairs`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} pairs The key-value pairs.
|
|
* @returns {Object} Returns the new object.
|
|
* @example
|
|
*
|
|
* _.fromPairs([['a', 1], ['b', 2]]);
|
|
* // => { 'a': 1, 'b': 2 }
|
|
*/
|
|
function fromPairs(pairs) {
|
|
var index = -1,
|
|
length = pairs == null ? 0 : pairs.length,
|
|
result = {};
|
|
|
|
while (++index < length) {
|
|
var pair = pairs[index];
|
|
result[pair[0]] = pair[1];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Gets the first element of `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @alias first
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @returns {*} Returns the first element of `array`.
|
|
* @example
|
|
*
|
|
* _.head([1, 2, 3]);
|
|
* // => 1
|
|
*
|
|
* _.head([]);
|
|
* // => undefined
|
|
*/
|
|
function head(array) {
|
|
return (array && array.length) ? array[0] : undefined;
|
|
}
|
|
|
|
/**
|
|
* Gets the index at which the first occurrence of `value` is found in `array`
|
|
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* for equality comparisons. If `fromIndex` is negative, it's used as the
|
|
* offset from the end of `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @param {number} [fromIndex=0] The index to search from.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
* @example
|
|
*
|
|
* _.indexOf([1, 2, 1, 2], 2);
|
|
* // => 1
|
|
*
|
|
* // Search from the `fromIndex`.
|
|
* _.indexOf([1, 2, 1, 2], 2, 2);
|
|
* // => 3
|
|
*/
|
|
function indexOf(array, value, fromIndex) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return -1;
|
|
}
|
|
var index = fromIndex == null ? 0 : toInteger(fromIndex);
|
|
if (index < 0) {
|
|
index = nativeMax(length + index, 0);
|
|
}
|
|
return baseIndexOf(array, value, index);
|
|
}
|
|
|
|
/**
|
|
* Gets all but the last element of `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* _.initial([1, 2, 3]);
|
|
* // => [1, 2]
|
|
*/
|
|
function initial(array) {
|
|
var length = array == null ? 0 : array.length;
|
|
return length ? baseSlice(array, 0, -1) : [];
|
|
}
|
|
|
|
/**
|
|
* Creates an array of unique values that are included in all given arrays
|
|
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* for equality comparisons. The order and references of result values are
|
|
* determined by the first array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @returns {Array} Returns the new array of intersecting values.
|
|
* @example
|
|
*
|
|
* _.intersection([2, 1], [2, 3]);
|
|
* // => [2]
|
|
*/
|
|
var intersection = baseRest(function(arrays) {
|
|
var mapped = arrayMap(arrays, castArrayLikeObject);
|
|
return (mapped.length && mapped[0] === arrays[0])
|
|
? baseIntersection(mapped)
|
|
: [];
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.intersection` except that it accepts `iteratee`
|
|
* which is invoked for each element of each `arrays` to generate the criterion
|
|
* by which they're compared. The order and references of result values are
|
|
* determined by the first array. The iteratee is invoked with one argument:
|
|
* (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {Array} Returns the new array of intersecting values.
|
|
* @example
|
|
*
|
|
* _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
|
|
* // => [2.1]
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
|
|
* // => [{ 'x': 1 }]
|
|
*/
|
|
var intersectionBy = baseRest(function(arrays) {
|
|
var iteratee = last(arrays),
|
|
mapped = arrayMap(arrays, castArrayLikeObject);
|
|
|
|
if (iteratee === last(mapped)) {
|
|
iteratee = undefined;
|
|
} else {
|
|
mapped.pop();
|
|
}
|
|
return (mapped.length && mapped[0] === arrays[0])
|
|
? baseIntersection(mapped, getIteratee(iteratee, 2))
|
|
: [];
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.intersection` except that it accepts `comparator`
|
|
* which is invoked to compare elements of `arrays`. The order and references
|
|
* of result values are determined by the first array. The comparator is
|
|
* invoked with two arguments: (arrVal, othVal).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new array of intersecting values.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
|
|
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
|
|
*
|
|
* _.intersectionWith(objects, others, _.isEqual);
|
|
* // => [{ 'x': 1, 'y': 2 }]
|
|
*/
|
|
var intersectionWith = baseRest(function(arrays) {
|
|
var comparator = last(arrays),
|
|
mapped = arrayMap(arrays, castArrayLikeObject);
|
|
|
|
comparator = typeof comparator == 'function' ? comparator : undefined;
|
|
if (comparator) {
|
|
mapped.pop();
|
|
}
|
|
return (mapped.length && mapped[0] === arrays[0])
|
|
? baseIntersection(mapped, undefined, comparator)
|
|
: [];
|
|
});
|
|
|
|
/**
|
|
* Converts all elements in `array` into a string separated by `separator`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to convert.
|
|
* @param {string} [separator=','] The element separator.
|
|
* @returns {string} Returns the joined string.
|
|
* @example
|
|
*
|
|
* _.join(['a', 'b', 'c'], '~');
|
|
* // => 'a~b~c'
|
|
*/
|
|
function join(array, separator) {
|
|
return array == null ? '' : nativeJoin.call(array, separator);
|
|
}
|
|
|
|
/**
|
|
* Gets the last element of `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @returns {*} Returns the last element of `array`.
|
|
* @example
|
|
*
|
|
* _.last([1, 2, 3]);
|
|
* // => 3
|
|
*/
|
|
function last(array) {
|
|
var length = array == null ? 0 : array.length;
|
|
return length ? array[length - 1] : undefined;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.indexOf` except that it iterates over elements of
|
|
* `array` from right to left.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @param {number} [fromIndex=array.length-1] The index to search from.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
* @example
|
|
*
|
|
* _.lastIndexOf([1, 2, 1, 2], 2);
|
|
* // => 3
|
|
*
|
|
* // Search from the `fromIndex`.
|
|
* _.lastIndexOf([1, 2, 1, 2], 2, 2);
|
|
* // => 1
|
|
*/
|
|
function lastIndexOf(array, value, fromIndex) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return -1;
|
|
}
|
|
var index = length;
|
|
if (fromIndex !== undefined) {
|
|
index = toInteger(fromIndex);
|
|
index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
|
|
}
|
|
return value === value
|
|
? strictLastIndexOf(array, value, index)
|
|
: baseFindIndex(array, baseIsNaN, index, true);
|
|
}
|
|
|
|
/**
|
|
* Gets the element at index `n` of `array`. If `n` is negative, the nth
|
|
* element from the end is returned.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.11.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {number} [n=0] The index of the element to return.
|
|
* @returns {*} Returns the nth element of `array`.
|
|
* @example
|
|
*
|
|
* var array = ['a', 'b', 'c', 'd'];
|
|
*
|
|
* _.nth(array, 1);
|
|
* // => 'b'
|
|
*
|
|
* _.nth(array, -2);
|
|
* // => 'c';
|
|
*/
|
|
function nth(array, n) {
|
|
return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
|
|
}
|
|
|
|
/**
|
|
* Removes all given values from `array` using
|
|
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* for equality comparisons.
|
|
*
|
|
* **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
|
|
* to remove elements from an array by predicate.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to modify.
|
|
* @param {...*} [values] The values to remove.
|
|
* @returns {Array} Returns `array`.
|
|
* @example
|
|
*
|
|
* var array = ['a', 'b', 'c', 'a', 'b', 'c'];
|
|
*
|
|
* _.pull(array, 'a', 'c');
|
|
* console.log(array);
|
|
* // => ['b', 'b']
|
|
*/
|
|
var pull = baseRest(pullAll);
|
|
|
|
/**
|
|
* This method is like `_.pull` except that it accepts an array of values to remove.
|
|
*
|
|
* **Note:** Unlike `_.difference`, this method mutates `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to modify.
|
|
* @param {Array} values The values to remove.
|
|
* @returns {Array} Returns `array`.
|
|
* @example
|
|
*
|
|
* var array = ['a', 'b', 'c', 'a', 'b', 'c'];
|
|
*
|
|
* _.pullAll(array, ['a', 'c']);
|
|
* console.log(array);
|
|
* // => ['b', 'b']
|
|
*/
|
|
function pullAll(array, values) {
|
|
return (array && array.length && values && values.length)
|
|
? basePullAll(array, values)
|
|
: array;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.pullAll` except that it accepts `iteratee` which is
|
|
* invoked for each element of `array` and `values` to generate the criterion
|
|
* by which they're compared. The iteratee is invoked with one argument: (value).
|
|
*
|
|
* **Note:** Unlike `_.differenceBy`, this method mutates `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to modify.
|
|
* @param {Array} values The values to remove.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {Array} Returns `array`.
|
|
* @example
|
|
*
|
|
* var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
|
|
*
|
|
* _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
|
|
* console.log(array);
|
|
* // => [{ 'x': 2 }]
|
|
*/
|
|
function pullAllBy(array, values, iteratee) {
|
|
return (array && array.length && values && values.length)
|
|
? basePullAll(array, values, getIteratee(iteratee, 2))
|
|
: array;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.pullAll` except that it accepts `comparator` which
|
|
* is invoked to compare elements of `array` to `values`. The comparator is
|
|
* invoked with two arguments: (arrVal, othVal).
|
|
*
|
|
* **Note:** Unlike `_.differenceWith`, this method mutates `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.6.0
|
|
* @category Array
|
|
* @param {Array} array The array to modify.
|
|
* @param {Array} values The values to remove.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns `array`.
|
|
* @example
|
|
*
|
|
* var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
|
|
*
|
|
* _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
|
|
* console.log(array);
|
|
* // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
|
|
*/
|
|
function pullAllWith(array, values, comparator) {
|
|
return (array && array.length && values && values.length)
|
|
? basePullAll(array, values, undefined, comparator)
|
|
: array;
|
|
}
|
|
|
|
/**
|
|
* Removes elements from `array` corresponding to `indexes` and returns an
|
|
* array of removed elements.
|
|
*
|
|
* **Note:** Unlike `_.at`, this method mutates `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to modify.
|
|
* @param {...(number|number[])} [indexes] The indexes of elements to remove.
|
|
* @returns {Array} Returns the new array of removed elements.
|
|
* @example
|
|
*
|
|
* var array = ['a', 'b', 'c', 'd'];
|
|
* var pulled = _.pullAt(array, [1, 3]);
|
|
*
|
|
* console.log(array);
|
|
* // => ['a', 'c']
|
|
*
|
|
* console.log(pulled);
|
|
* // => ['b', 'd']
|
|
*/
|
|
var pullAt = flatRest(function(array, indexes) {
|
|
var length = array == null ? 0 : array.length,
|
|
result = baseAt(array, indexes);
|
|
|
|
basePullAt(array, arrayMap(indexes, function(index) {
|
|
return isIndex(index, length) ? +index : index;
|
|
}).sort(compareAscending));
|
|
|
|
return result;
|
|
});
|
|
|
|
/**
|
|
* Removes all elements from `array` that `predicate` returns truthy for
|
|
* and returns an array of the removed elements. The predicate is invoked
|
|
* with three arguments: (value, index, array).
|
|
*
|
|
* **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
|
|
* to pull elements from an array by value.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to modify.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the new array of removed elements.
|
|
* @example
|
|
*
|
|
* var array = [1, 2, 3, 4];
|
|
* var evens = _.remove(array, function(n) {
|
|
* return n % 2 == 0;
|
|
* });
|
|
*
|
|
* console.log(array);
|
|
* // => [1, 3]
|
|
*
|
|
* console.log(evens);
|
|
* // => [2, 4]
|
|
*/
|
|
function remove(array, predicate) {
|
|
var result = [];
|
|
if (!(array && array.length)) {
|
|
return result;
|
|
}
|
|
var index = -1,
|
|
indexes = [],
|
|
length = array.length;
|
|
|
|
predicate = getIteratee(predicate, 3);
|
|
while (++index < length) {
|
|
var value = array[index];
|
|
if (predicate(value, index, array)) {
|
|
result.push(value);
|
|
indexes.push(index);
|
|
}
|
|
}
|
|
basePullAt(array, indexes);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Reverses `array` so that the first element becomes the last, the second
|
|
* element becomes the second to last, and so on.
|
|
*
|
|
* **Note:** This method mutates `array` and is based on
|
|
* [`Array#reverse`](https://mdn.io/Array/reverse).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to modify.
|
|
* @returns {Array} Returns `array`.
|
|
* @example
|
|
*
|
|
* var array = [1, 2, 3];
|
|
*
|
|
* _.reverse(array);
|
|
* // => [3, 2, 1]
|
|
*
|
|
* console.log(array);
|
|
* // => [3, 2, 1]
|
|
*/
|
|
function reverse(array) {
|
|
return array == null ? array : nativeReverse.call(array);
|
|
}
|
|
|
|
/**
|
|
* Creates a slice of `array` from `start` up to, but not including, `end`.
|
|
*
|
|
* **Note:** This method is used instead of
|
|
* [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
|
|
* returned.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to slice.
|
|
* @param {number} [start=0] The start position.
|
|
* @param {number} [end=array.length] The end position.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
*/
|
|
function slice(array, start, end) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return [];
|
|
}
|
|
if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
|
|
start = 0;
|
|
end = length;
|
|
}
|
|
else {
|
|
start = start == null ? 0 : toInteger(start);
|
|
end = end === undefined ? length : toInteger(end);
|
|
}
|
|
return baseSlice(array, start, end);
|
|
}
|
|
|
|
/**
|
|
* Uses a binary search to determine the lowest index at which `value`
|
|
* should be inserted into `array` in order to maintain its sort order.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The sorted array to inspect.
|
|
* @param {*} value The value to evaluate.
|
|
* @returns {number} Returns the index at which `value` should be inserted
|
|
* into `array`.
|
|
* @example
|
|
*
|
|
* _.sortedIndex([30, 50], 40);
|
|
* // => 1
|
|
*/
|
|
function sortedIndex(array, value) {
|
|
return baseSortedIndex(array, value);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.sortedIndex` except that it accepts `iteratee`
|
|
* which is invoked for `value` and each element of `array` to compute their
|
|
* sort ranking. The iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The sorted array to inspect.
|
|
* @param {*} value The value to evaluate.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {number} Returns the index at which `value` should be inserted
|
|
* into `array`.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'x': 4 }, { 'x': 5 }];
|
|
*
|
|
* _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
|
|
* // => 0
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.sortedIndexBy(objects, { 'x': 4 }, 'x');
|
|
* // => 0
|
|
*/
|
|
function sortedIndexBy(array, value, iteratee) {
|
|
return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.indexOf` except that it performs a binary
|
|
* search on a sorted `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
* @example
|
|
*
|
|
* _.sortedIndexOf([4, 5, 5, 5, 6], 5);
|
|
* // => 1
|
|
*/
|
|
function sortedIndexOf(array, value) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (length) {
|
|
var index = baseSortedIndex(array, value);
|
|
if (index < length && eq(array[index], value)) {
|
|
return index;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.sortedIndex` except that it returns the highest
|
|
* index at which `value` should be inserted into `array` in order to
|
|
* maintain its sort order.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The sorted array to inspect.
|
|
* @param {*} value The value to evaluate.
|
|
* @returns {number} Returns the index at which `value` should be inserted
|
|
* into `array`.
|
|
* @example
|
|
*
|
|
* _.sortedLastIndex([4, 5, 5, 5, 6], 5);
|
|
* // => 4
|
|
*/
|
|
function sortedLastIndex(array, value) {
|
|
return baseSortedIndex(array, value, true);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.sortedLastIndex` except that it accepts `iteratee`
|
|
* which is invoked for `value` and each element of `array` to compute their
|
|
* sort ranking. The iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The sorted array to inspect.
|
|
* @param {*} value The value to evaluate.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {number} Returns the index at which `value` should be inserted
|
|
* into `array`.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'x': 4 }, { 'x': 5 }];
|
|
*
|
|
* _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
|
|
* // => 1
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
|
|
* // => 1
|
|
*/
|
|
function sortedLastIndexBy(array, value, iteratee) {
|
|
return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.lastIndexOf` except that it performs a binary
|
|
* search on a sorted `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
* @example
|
|
*
|
|
* _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
|
|
* // => 3
|
|
*/
|
|
function sortedLastIndexOf(array, value) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (length) {
|
|
var index = baseSortedIndex(array, value, true) - 1;
|
|
if (eq(array[index], value)) {
|
|
return index;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.uniq` except that it's designed and optimized
|
|
* for sorted arrays.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @returns {Array} Returns the new duplicate free array.
|
|
* @example
|
|
*
|
|
* _.sortedUniq([1, 1, 2]);
|
|
* // => [1, 2]
|
|
*/
|
|
function sortedUniq(array) {
|
|
return (array && array.length)
|
|
? baseSortedUniq(array)
|
|
: [];
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.uniqBy` except that it's designed and optimized
|
|
* for sorted arrays.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Function} [iteratee] The iteratee invoked per element.
|
|
* @returns {Array} Returns the new duplicate free array.
|
|
* @example
|
|
*
|
|
* _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
|
|
* // => [1.1, 2.3]
|
|
*/
|
|
function sortedUniqBy(array, iteratee) {
|
|
return (array && array.length)
|
|
? baseSortedUniq(array, getIteratee(iteratee, 2))
|
|
: [];
|
|
}
|
|
|
|
/**
|
|
* Gets all but the first element of `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* _.tail([1, 2, 3]);
|
|
* // => [2, 3]
|
|
*/
|
|
function tail(array) {
|
|
var length = array == null ? 0 : array.length;
|
|
return length ? baseSlice(array, 1, length) : [];
|
|
}
|
|
|
|
/**
|
|
* Creates a slice of `array` with `n` elements taken from the beginning.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {number} [n=1] The number of elements to take.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* _.take([1, 2, 3]);
|
|
* // => [1]
|
|
*
|
|
* _.take([1, 2, 3], 2);
|
|
* // => [1, 2]
|
|
*
|
|
* _.take([1, 2, 3], 5);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* _.take([1, 2, 3], 0);
|
|
* // => []
|
|
*/
|
|
function take(array, n, guard) {
|
|
if (!(array && array.length)) {
|
|
return [];
|
|
}
|
|
n = (guard || n === undefined) ? 1 : toInteger(n);
|
|
return baseSlice(array, 0, n < 0 ? 0 : n);
|
|
}
|
|
|
|
/**
|
|
* Creates a slice of `array` with `n` elements taken from the end.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {number} [n=1] The number of elements to take.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* _.takeRight([1, 2, 3]);
|
|
* // => [3]
|
|
*
|
|
* _.takeRight([1, 2, 3], 2);
|
|
* // => [2, 3]
|
|
*
|
|
* _.takeRight([1, 2, 3], 5);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* _.takeRight([1, 2, 3], 0);
|
|
* // => []
|
|
*/
|
|
function takeRight(array, n, guard) {
|
|
var length = array == null ? 0 : array.length;
|
|
if (!length) {
|
|
return [];
|
|
}
|
|
n = (guard || n === undefined) ? 1 : toInteger(n);
|
|
n = length - n;
|
|
return baseSlice(array, n < 0 ? 0 : n, length);
|
|
}
|
|
|
|
/**
|
|
* Creates a slice of `array` with elements taken from the end. Elements are
|
|
* taken until `predicate` returns falsey. The predicate is invoked with
|
|
* three arguments: (value, index, array).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'active': true },
|
|
* { 'user': 'fred', 'active': false },
|
|
* { 'user': 'pebbles', 'active': false }
|
|
* ];
|
|
*
|
|
* _.takeRightWhile(users, function(o) { return !o.active; });
|
|
* // => objects for ['fred', 'pebbles']
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
|
|
* // => objects for ['pebbles']
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.takeRightWhile(users, ['active', false]);
|
|
* // => objects for ['fred', 'pebbles']
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.takeRightWhile(users, 'active');
|
|
* // => []
|
|
*/
|
|
function takeRightWhile(array, predicate) {
|
|
return (array && array.length)
|
|
? baseWhile(array, getIteratee(predicate, 3), false, true)
|
|
: [];
|
|
}
|
|
|
|
/**
|
|
* Creates a slice of `array` with elements taken from the beginning. Elements
|
|
* are taken until `predicate` returns falsey. The predicate is invoked with
|
|
* three arguments: (value, index, array).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the slice of `array`.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'active': false },
|
|
* { 'user': 'fred', 'active': false },
|
|
* { 'user': 'pebbles', 'active': true }
|
|
* ];
|
|
*
|
|
* _.takeWhile(users, function(o) { return !o.active; });
|
|
* // => objects for ['barney', 'fred']
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.takeWhile(users, { 'user': 'barney', 'active': false });
|
|
* // => objects for ['barney']
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.takeWhile(users, ['active', false]);
|
|
* // => objects for ['barney', 'fred']
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.takeWhile(users, 'active');
|
|
* // => []
|
|
*/
|
|
function takeWhile(array, predicate) {
|
|
return (array && array.length)
|
|
? baseWhile(array, getIteratee(predicate, 3))
|
|
: [];
|
|
}
|
|
|
|
/**
|
|
* Creates an array of unique values, in order, from all given arrays using
|
|
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* for equality comparisons.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @returns {Array} Returns the new array of combined values.
|
|
* @example
|
|
*
|
|
* _.union([2], [1, 2]);
|
|
* // => [2, 1]
|
|
*/
|
|
var union = baseRest(function(arrays) {
|
|
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.union` except that it accepts `iteratee` which is
|
|
* invoked for each element of each `arrays` to generate the criterion by
|
|
* which uniqueness is computed. Result values are chosen from the first
|
|
* array in which the value occurs. The iteratee is invoked with one argument:
|
|
* (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {Array} Returns the new array of combined values.
|
|
* @example
|
|
*
|
|
* _.unionBy([2.1], [1.2, 2.3], Math.floor);
|
|
* // => [2.1, 1.2]
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
|
|
* // => [{ 'x': 1 }, { 'x': 2 }]
|
|
*/
|
|
var unionBy = baseRest(function(arrays) {
|
|
var iteratee = last(arrays);
|
|
if (isArrayLikeObject(iteratee)) {
|
|
iteratee = undefined;
|
|
}
|
|
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.union` except that it accepts `comparator` which
|
|
* is invoked to compare elements of `arrays`. Result values are chosen from
|
|
* the first array in which the value occurs. The comparator is invoked
|
|
* with two arguments: (arrVal, othVal).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new array of combined values.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
|
|
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
|
|
*
|
|
* _.unionWith(objects, others, _.isEqual);
|
|
* // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
|
|
*/
|
|
var unionWith = baseRest(function(arrays) {
|
|
var comparator = last(arrays);
|
|
comparator = typeof comparator == 'function' ? comparator : undefined;
|
|
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
|
|
});
|
|
|
|
/**
|
|
* Creates a duplicate-free version of an array, using
|
|
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* for equality comparisons, in which only the first occurrence of each element
|
|
* is kept. The order of result values is determined by the order they occur
|
|
* in the array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @returns {Array} Returns the new duplicate free array.
|
|
* @example
|
|
*
|
|
* _.uniq([2, 1, 2]);
|
|
* // => [2, 1]
|
|
*/
|
|
function uniq(array) {
|
|
return (array && array.length) ? baseUniq(array) : [];
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.uniq` except that it accepts `iteratee` which is
|
|
* invoked for each element in `array` to generate the criterion by which
|
|
* uniqueness is computed. The order of result values is determined by the
|
|
* order they occur in the array. The iteratee is invoked with one argument:
|
|
* (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {Array} Returns the new duplicate free array.
|
|
* @example
|
|
*
|
|
* _.uniqBy([2.1, 1.2, 2.3], Math.floor);
|
|
* // => [2.1, 1.2]
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
|
|
* // => [{ 'x': 1 }, { 'x': 2 }]
|
|
*/
|
|
function uniqBy(array, iteratee) {
|
|
return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.uniq` except that it accepts `comparator` which
|
|
* is invoked to compare elements of `array`. The order of result values is
|
|
* determined by the order they occur in the array.The comparator is invoked
|
|
* with two arguments: (arrVal, othVal).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new duplicate free array.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
|
|
*
|
|
* _.uniqWith(objects, _.isEqual);
|
|
* // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
|
|
*/
|
|
function uniqWith(array, comparator) {
|
|
comparator = typeof comparator == 'function' ? comparator : undefined;
|
|
return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.zip` except that it accepts an array of grouped
|
|
* elements and creates an array regrouping the elements to their pre-zip
|
|
* configuration.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.2.0
|
|
* @category Array
|
|
* @param {Array} array The array of grouped elements to process.
|
|
* @returns {Array} Returns the new array of regrouped elements.
|
|
* @example
|
|
*
|
|
* var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
|
|
* // => [['a', 1, true], ['b', 2, false]]
|
|
*
|
|
* _.unzip(zipped);
|
|
* // => [['a', 'b'], [1, 2], [true, false]]
|
|
*/
|
|
function unzip(array) {
|
|
if (!(array && array.length)) {
|
|
return [];
|
|
}
|
|
var length = 0;
|
|
array = arrayFilter(array, function(group) {
|
|
if (isArrayLikeObject(group)) {
|
|
length = nativeMax(group.length, length);
|
|
return true;
|
|
}
|
|
});
|
|
return baseTimes(length, function(index) {
|
|
return arrayMap(array, baseProperty(index));
|
|
});
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.unzip` except that it accepts `iteratee` to specify
|
|
* how regrouped values should be combined. The iteratee is invoked with the
|
|
* elements of each group: (...group).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.8.0
|
|
* @category Array
|
|
* @param {Array} array The array of grouped elements to process.
|
|
* @param {Function} [iteratee=_.identity] The function to combine
|
|
* regrouped values.
|
|
* @returns {Array} Returns the new array of regrouped elements.
|
|
* @example
|
|
*
|
|
* var zipped = _.zip([1, 2], [10, 20], [100, 200]);
|
|
* // => [[1, 10, 100], [2, 20, 200]]
|
|
*
|
|
* _.unzipWith(zipped, _.add);
|
|
* // => [3, 30, 300]
|
|
*/
|
|
function unzipWith(array, iteratee) {
|
|
if (!(array && array.length)) {
|
|
return [];
|
|
}
|
|
var result = unzip(array);
|
|
if (iteratee == null) {
|
|
return result;
|
|
}
|
|
return arrayMap(result, function(group) {
|
|
return apply(iteratee, undefined, group);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates an array excluding all given values using
|
|
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* for equality comparisons.
|
|
*
|
|
* **Note:** Unlike `_.pull`, this method returns a new array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {Array} array The array to inspect.
|
|
* @param {...*} [values] The values to exclude.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
* @see _.difference, _.xor
|
|
* @example
|
|
*
|
|
* _.without([2, 1, 2, 3], 1, 2);
|
|
* // => [3]
|
|
*/
|
|
var without = baseRest(function(array, values) {
|
|
return isArrayLikeObject(array)
|
|
? baseDifference(array, values)
|
|
: [];
|
|
});
|
|
|
|
/**
|
|
* Creates an array of unique values that is the
|
|
* [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
|
|
* of the given arrays. The order of result values is determined by the order
|
|
* they occur in the arrays.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.4.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
* @see _.difference, _.without
|
|
* @example
|
|
*
|
|
* _.xor([2, 1], [2, 3]);
|
|
* // => [1, 3]
|
|
*/
|
|
var xor = baseRest(function(arrays) {
|
|
return baseXor(arrayFilter(arrays, isArrayLikeObject));
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.xor` except that it accepts `iteratee` which is
|
|
* invoked for each element of each `arrays` to generate the criterion by
|
|
* which by which they're compared. The order of result values is determined
|
|
* by the order they occur in the arrays. The iteratee is invoked with one
|
|
* argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
* @example
|
|
*
|
|
* _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
|
|
* // => [1.2, 3.4]
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
|
|
* // => [{ 'x': 2 }]
|
|
*/
|
|
var xorBy = baseRest(function(arrays) {
|
|
var iteratee = last(arrays);
|
|
if (isArrayLikeObject(iteratee)) {
|
|
iteratee = undefined;
|
|
}
|
|
return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.xor` except that it accepts `comparator` which is
|
|
* invoked to compare elements of `arrays`. The order of result values is
|
|
* determined by the order they occur in the arrays. The comparator is invoked
|
|
* with two arguments: (arrVal, othVal).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
|
* @param {Function} [comparator] The comparator invoked per element.
|
|
* @returns {Array} Returns the new array of filtered values.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
|
|
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
|
|
*
|
|
* _.xorWith(objects, others, _.isEqual);
|
|
* // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
|
|
*/
|
|
var xorWith = baseRest(function(arrays) {
|
|
var comparator = last(arrays);
|
|
comparator = typeof comparator == 'function' ? comparator : undefined;
|
|
return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
|
|
});
|
|
|
|
/**
|
|
* Creates an array of grouped elements, the first of which contains the
|
|
* first elements of the given arrays, the second of which contains the
|
|
* second elements of the given arrays, and so on.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to process.
|
|
* @returns {Array} Returns the new array of grouped elements.
|
|
* @example
|
|
*
|
|
* _.zip(['a', 'b'], [1, 2], [true, false]);
|
|
* // => [['a', 1, true], ['b', 2, false]]
|
|
*/
|
|
var zip = baseRest(unzip);
|
|
|
|
/**
|
|
* This method is like `_.fromPairs` except that it accepts two arrays,
|
|
* one of property identifiers and one of corresponding values.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.4.0
|
|
* @category Array
|
|
* @param {Array} [props=[]] The property identifiers.
|
|
* @param {Array} [values=[]] The property values.
|
|
* @returns {Object} Returns the new object.
|
|
* @example
|
|
*
|
|
* _.zipObject(['a', 'b'], [1, 2]);
|
|
* // => { 'a': 1, 'b': 2 }
|
|
*/
|
|
function zipObject(props, values) {
|
|
return baseZipObject(props || [], values || [], assignValue);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.zipObject` except that it supports property paths.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.1.0
|
|
* @category Array
|
|
* @param {Array} [props=[]] The property identifiers.
|
|
* @param {Array} [values=[]] The property values.
|
|
* @returns {Object} Returns the new object.
|
|
* @example
|
|
*
|
|
* _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
|
|
* // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
|
|
*/
|
|
function zipObjectDeep(props, values) {
|
|
return baseZipObject(props || [], values || [], baseSet);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.zip` except that it accepts `iteratee` to specify
|
|
* how grouped values should be combined. The iteratee is invoked with the
|
|
* elements of each group: (...group).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.8.0
|
|
* @category Array
|
|
* @param {...Array} [arrays] The arrays to process.
|
|
* @param {Function} [iteratee=_.identity] The function to combine
|
|
* grouped values.
|
|
* @returns {Array} Returns the new array of grouped elements.
|
|
* @example
|
|
*
|
|
* _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
|
|
* return a + b + c;
|
|
* });
|
|
* // => [111, 222]
|
|
*/
|
|
var zipWith = baseRest(function(arrays) {
|
|
var length = arrays.length,
|
|
iteratee = length > 1 ? arrays[length - 1] : undefined;
|
|
|
|
iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
|
|
return unzipWith(arrays, iteratee);
|
|
});
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates a `lodash` wrapper instance that wraps `value` with explicit method
|
|
* chain sequences enabled. The result of such sequences must be unwrapped
|
|
* with `_#value`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.3.0
|
|
* @category Seq
|
|
* @param {*} value The value to wrap.
|
|
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'age': 36 },
|
|
* { 'user': 'fred', 'age': 40 },
|
|
* { 'user': 'pebbles', 'age': 1 }
|
|
* ];
|
|
*
|
|
* var youngest = _
|
|
* .chain(users)
|
|
* .sortBy('age')
|
|
* .map(function(o) {
|
|
* return o.user + ' is ' + o.age;
|
|
* })
|
|
* .head()
|
|
* .value();
|
|
* // => 'pebbles is 1'
|
|
*/
|
|
function chain(value) {
|
|
var result = lodash(value);
|
|
result.__chain__ = true;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method invokes `interceptor` and returns `value`. The interceptor
|
|
* is invoked with one argument; (value). The purpose of this method is to
|
|
* "tap into" a method chain sequence in order to modify intermediate results.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Seq
|
|
* @param {*} value The value to provide to `interceptor`.
|
|
* @param {Function} interceptor The function to invoke.
|
|
* @returns {*} Returns `value`.
|
|
* @example
|
|
*
|
|
* _([1, 2, 3])
|
|
* .tap(function(array) {
|
|
* // Mutate input array.
|
|
* array.pop();
|
|
* })
|
|
* .reverse()
|
|
* .value();
|
|
* // => [2, 1]
|
|
*/
|
|
function tap(value, interceptor) {
|
|
interceptor(value);
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.tap` except that it returns the result of `interceptor`.
|
|
* The purpose of this method is to "pass thru" values replacing intermediate
|
|
* results in a method chain sequence.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Seq
|
|
* @param {*} value The value to provide to `interceptor`.
|
|
* @param {Function} interceptor The function to invoke.
|
|
* @returns {*} Returns the result of `interceptor`.
|
|
* @example
|
|
*
|
|
* _(' abc ')
|
|
* .chain()
|
|
* .trim()
|
|
* .thru(function(value) {
|
|
* return [value];
|
|
* })
|
|
* .value();
|
|
* // => ['abc']
|
|
*/
|
|
function thru(value, interceptor) {
|
|
return interceptor(value);
|
|
}
|
|
|
|
/**
|
|
* This method is the wrapper version of `_.at`.
|
|
*
|
|
* @name at
|
|
* @memberOf _
|
|
* @since 1.0.0
|
|
* @category Seq
|
|
* @param {...(string|string[])} [paths] The property paths to pick.
|
|
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
|
|
*
|
|
* _(object).at(['a[0].b.c', 'a[1]']).value();
|
|
* // => [3, 4]
|
|
*/
|
|
var wrapperAt = flatRest(function(paths) {
|
|
var length = paths.length,
|
|
start = length ? paths[0] : 0,
|
|
value = this.__wrapped__,
|
|
interceptor = function(object) { return baseAt(object, paths); };
|
|
|
|
if (length > 1 || this.__actions__.length ||
|
|
!(value instanceof LazyWrapper) || !isIndex(start)) {
|
|
return this.thru(interceptor);
|
|
}
|
|
value = value.slice(start, +start + (length ? 1 : 0));
|
|
value.__actions__.push({
|
|
'func': thru,
|
|
'args': [interceptor],
|
|
'thisArg': undefined
|
|
});
|
|
return new LodashWrapper(value, this.__chain__).thru(function(array) {
|
|
if (length && !array.length) {
|
|
array.push(undefined);
|
|
}
|
|
return array;
|
|
});
|
|
});
|
|
|
|
/**
|
|
* Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
|
|
*
|
|
* @name chain
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Seq
|
|
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'age': 36 },
|
|
* { 'user': 'fred', 'age': 40 }
|
|
* ];
|
|
*
|
|
* // A sequence without explicit chaining.
|
|
* _(users).head();
|
|
* // => { 'user': 'barney', 'age': 36 }
|
|
*
|
|
* // A sequence with explicit chaining.
|
|
* _(users)
|
|
* .chain()
|
|
* .head()
|
|
* .pick('user')
|
|
* .value();
|
|
* // => { 'user': 'barney' }
|
|
*/
|
|
function wrapperChain() {
|
|
return chain(this);
|
|
}
|
|
|
|
/**
|
|
* Executes the chain sequence and returns the wrapped result.
|
|
*
|
|
* @name commit
|
|
* @memberOf _
|
|
* @since 3.2.0
|
|
* @category Seq
|
|
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
* @example
|
|
*
|
|
* var array = [1, 2];
|
|
* var wrapped = _(array).push(3);
|
|
*
|
|
* console.log(array);
|
|
* // => [1, 2]
|
|
*
|
|
* wrapped = wrapped.commit();
|
|
* console.log(array);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* wrapped.last();
|
|
* // => 3
|
|
*
|
|
* console.log(array);
|
|
* // => [1, 2, 3]
|
|
*/
|
|
function wrapperCommit() {
|
|
return new LodashWrapper(this.value(), this.__chain__);
|
|
}
|
|
|
|
/**
|
|
* Gets the next value on a wrapped object following the
|
|
* [iterator protocol](https://mdn.io/iteration_protocols#iterator).
|
|
*
|
|
* @name next
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Seq
|
|
* @returns {Object} Returns the next iterator value.
|
|
* @example
|
|
*
|
|
* var wrapped = _([1, 2]);
|
|
*
|
|
* wrapped.next();
|
|
* // => { 'done': false, 'value': 1 }
|
|
*
|
|
* wrapped.next();
|
|
* // => { 'done': false, 'value': 2 }
|
|
*
|
|
* wrapped.next();
|
|
* // => { 'done': true, 'value': undefined }
|
|
*/
|
|
function wrapperNext() {
|
|
if (this.__values__ === undefined) {
|
|
this.__values__ = toArray(this.value());
|
|
}
|
|
var done = this.__index__ >= this.__values__.length,
|
|
value = done ? undefined : this.__values__[this.__index__++];
|
|
|
|
return { 'done': done, 'value': value };
|
|
}
|
|
|
|
/**
|
|
* Enables the wrapper to be iterable.
|
|
*
|
|
* @name Symbol.iterator
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Seq
|
|
* @returns {Object} Returns the wrapper object.
|
|
* @example
|
|
*
|
|
* var wrapped = _([1, 2]);
|
|
*
|
|
* wrapped[Symbol.iterator]() === wrapped;
|
|
* // => true
|
|
*
|
|
* Array.from(wrapped);
|
|
* // => [1, 2]
|
|
*/
|
|
function wrapperToIterator() {
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* Creates a clone of the chain sequence planting `value` as the wrapped value.
|
|
*
|
|
* @name plant
|
|
* @memberOf _
|
|
* @since 3.2.0
|
|
* @category Seq
|
|
* @param {*} value The value to plant.
|
|
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
* @example
|
|
*
|
|
* function square(n) {
|
|
* return n * n;
|
|
* }
|
|
*
|
|
* var wrapped = _([1, 2]).map(square);
|
|
* var other = wrapped.plant([3, 4]);
|
|
*
|
|
* other.value();
|
|
* // => [9, 16]
|
|
*
|
|
* wrapped.value();
|
|
* // => [1, 4]
|
|
*/
|
|
function wrapperPlant(value) {
|
|
var result,
|
|
parent = this;
|
|
|
|
while (parent instanceof baseLodash) {
|
|
var clone = wrapperClone(parent);
|
|
clone.__index__ = 0;
|
|
clone.__values__ = undefined;
|
|
if (result) {
|
|
previous.__wrapped__ = clone;
|
|
} else {
|
|
result = clone;
|
|
}
|
|
var previous = clone;
|
|
parent = parent.__wrapped__;
|
|
}
|
|
previous.__wrapped__ = value;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method is the wrapper version of `_.reverse`.
|
|
*
|
|
* **Note:** This method mutates the wrapped array.
|
|
*
|
|
* @name reverse
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Seq
|
|
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
* @example
|
|
*
|
|
* var array = [1, 2, 3];
|
|
*
|
|
* _(array).reverse().value()
|
|
* // => [3, 2, 1]
|
|
*
|
|
* console.log(array);
|
|
* // => [3, 2, 1]
|
|
*/
|
|
function wrapperReverse() {
|
|
var value = this.__wrapped__;
|
|
if (value instanceof LazyWrapper) {
|
|
var wrapped = value;
|
|
if (this.__actions__.length) {
|
|
wrapped = new LazyWrapper(this);
|
|
}
|
|
wrapped = wrapped.reverse();
|
|
wrapped.__actions__.push({
|
|
'func': thru,
|
|
'args': [reverse],
|
|
'thisArg': undefined
|
|
});
|
|
return new LodashWrapper(wrapped, this.__chain__);
|
|
}
|
|
return this.thru(reverse);
|
|
}
|
|
|
|
/**
|
|
* Executes the chain sequence to resolve the unwrapped value.
|
|
*
|
|
* @name value
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @alias toJSON, valueOf
|
|
* @category Seq
|
|
* @returns {*} Returns the resolved unwrapped value.
|
|
* @example
|
|
*
|
|
* _([1, 2, 3]).value();
|
|
* // => [1, 2, 3]
|
|
*/
|
|
function wrapperValue() {
|
|
return baseWrapperValue(this.__wrapped__, this.__actions__);
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates an object composed of keys generated from the results of running
|
|
* each element of `collection` thru `iteratee`. The corresponding value of
|
|
* each key is the number of times the key was returned by `iteratee`. The
|
|
* iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.5.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The iteratee to transform keys.
|
|
* @returns {Object} Returns the composed aggregate object.
|
|
* @example
|
|
*
|
|
* _.countBy([6.1, 4.2, 6.3], Math.floor);
|
|
* // => { '4': 1, '6': 2 }
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.countBy(['one', 'two', 'three'], 'length');
|
|
* // => { '3': 2, '5': 1 }
|
|
*/
|
|
var countBy = createAggregator(function(result, value, key) {
|
|
if (hasOwnProperty.call(result, key)) {
|
|
++result[key];
|
|
} else {
|
|
baseAssignValue(result, key, 1);
|
|
}
|
|
});
|
|
|
|
/**
|
|
* Checks if `predicate` returns truthy for **all** elements of `collection`.
|
|
* Iteration is stopped once `predicate` returns falsey. The predicate is
|
|
* invoked with three arguments: (value, index|key, collection).
|
|
*
|
|
* **Note:** This method returns `true` for
|
|
* [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
|
|
* [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
|
|
* elements of empty collections.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {boolean} Returns `true` if all elements pass the predicate check,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.every([true, 1, null, 'yes'], Boolean);
|
|
* // => false
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'age': 36, 'active': false },
|
|
* { 'user': 'fred', 'age': 40, 'active': false }
|
|
* ];
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.every(users, { 'user': 'barney', 'active': false });
|
|
* // => false
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.every(users, ['active', false]);
|
|
* // => true
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.every(users, 'active');
|
|
* // => false
|
|
*/
|
|
function every(collection, predicate, guard) {
|
|
var func = isArray(collection) ? arrayEvery : baseEvery;
|
|
if (guard && isIterateeCall(collection, predicate, guard)) {
|
|
predicate = undefined;
|
|
}
|
|
return func(collection, getIteratee(predicate, 3));
|
|
}
|
|
|
|
/**
|
|
* Iterates over elements of `collection`, returning an array of all elements
|
|
* `predicate` returns truthy for. The predicate is invoked with three
|
|
* arguments: (value, index|key, collection).
|
|
*
|
|
* **Note:** Unlike `_.remove`, this method returns a new array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the new filtered array.
|
|
* @see _.reject
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'age': 36, 'active': true },
|
|
* { 'user': 'fred', 'age': 40, 'active': false }
|
|
* ];
|
|
*
|
|
* _.filter(users, function(o) { return !o.active; });
|
|
* // => objects for ['fred']
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.filter(users, { 'age': 36, 'active': true });
|
|
* // => objects for ['barney']
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.filter(users, ['active', false]);
|
|
* // => objects for ['fred']
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.filter(users, 'active');
|
|
* // => objects for ['barney']
|
|
*
|
|
* // Combining several predicates using `_.overEvery` or `_.overSome`.
|
|
* _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));
|
|
* // => objects for ['fred', 'barney']
|
|
*/
|
|
function filter(collection, predicate) {
|
|
var func = isArray(collection) ? arrayFilter : baseFilter;
|
|
return func(collection, getIteratee(predicate, 3));
|
|
}
|
|
|
|
/**
|
|
* Iterates over elements of `collection`, returning the first element
|
|
* `predicate` returns truthy for. The predicate is invoked with three
|
|
* arguments: (value, index|key, collection).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to inspect.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @param {number} [fromIndex=0] The index to search from.
|
|
* @returns {*} Returns the matched element, else `undefined`.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'age': 36, 'active': true },
|
|
* { 'user': 'fred', 'age': 40, 'active': false },
|
|
* { 'user': 'pebbles', 'age': 1, 'active': true }
|
|
* ];
|
|
*
|
|
* _.find(users, function(o) { return o.age < 40; });
|
|
* // => object for 'barney'
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.find(users, { 'age': 1, 'active': true });
|
|
* // => object for 'pebbles'
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.find(users, ['active', false]);
|
|
* // => object for 'fred'
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.find(users, 'active');
|
|
* // => object for 'barney'
|
|
*/
|
|
var find = createFind(findIndex);
|
|
|
|
/**
|
|
* This method is like `_.find` except that it iterates over elements of
|
|
* `collection` from right to left.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to inspect.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @param {number} [fromIndex=collection.length-1] The index to search from.
|
|
* @returns {*} Returns the matched element, else `undefined`.
|
|
* @example
|
|
*
|
|
* _.findLast([1, 2, 3, 4], function(n) {
|
|
* return n % 2 == 1;
|
|
* });
|
|
* // => 3
|
|
*/
|
|
var findLast = createFind(findLastIndex);
|
|
|
|
/**
|
|
* Creates a flattened array of values by running each element in `collection`
|
|
* thru `iteratee` and flattening the mapped results. The iteratee is invoked
|
|
* with three arguments: (value, index|key, collection).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the new flattened array.
|
|
* @example
|
|
*
|
|
* function duplicate(n) {
|
|
* return [n, n];
|
|
* }
|
|
*
|
|
* _.flatMap([1, 2], duplicate);
|
|
* // => [1, 1, 2, 2]
|
|
*/
|
|
function flatMap(collection, iteratee) {
|
|
return baseFlatten(map(collection, iteratee), 1);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.flatMap` except that it recursively flattens the
|
|
* mapped results.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.7.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the new flattened array.
|
|
* @example
|
|
*
|
|
* function duplicate(n) {
|
|
* return [[[n, n]]];
|
|
* }
|
|
*
|
|
* _.flatMapDeep([1, 2], duplicate);
|
|
* // => [1, 1, 2, 2]
|
|
*/
|
|
function flatMapDeep(collection, iteratee) {
|
|
return baseFlatten(map(collection, iteratee), INFINITY);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.flatMap` except that it recursively flattens the
|
|
* mapped results up to `depth` times.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.7.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @param {number} [depth=1] The maximum recursion depth.
|
|
* @returns {Array} Returns the new flattened array.
|
|
* @example
|
|
*
|
|
* function duplicate(n) {
|
|
* return [[[n, n]]];
|
|
* }
|
|
*
|
|
* _.flatMapDepth([1, 2], duplicate, 2);
|
|
* // => [[1, 1], [2, 2]]
|
|
*/
|
|
function flatMapDepth(collection, iteratee, depth) {
|
|
depth = depth === undefined ? 1 : toInteger(depth);
|
|
return baseFlatten(map(collection, iteratee), depth);
|
|
}
|
|
|
|
/**
|
|
* Iterates over elements of `collection` and invokes `iteratee` for each element.
|
|
* The iteratee is invoked with three arguments: (value, index|key, collection).
|
|
* Iteratee functions may exit iteration early by explicitly returning `false`.
|
|
*
|
|
* **Note:** As with other "Collections" methods, objects with a "length"
|
|
* property are iterated like arrays. To avoid this behavior use `_.forIn`
|
|
* or `_.forOwn` for object iteration.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @alias each
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Array|Object} Returns `collection`.
|
|
* @see _.forEachRight
|
|
* @example
|
|
*
|
|
* _.forEach([1, 2], function(value) {
|
|
* console.log(value);
|
|
* });
|
|
* // => Logs `1` then `2`.
|
|
*
|
|
* _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
|
|
* console.log(key);
|
|
* });
|
|
* // => Logs 'a' then 'b' (iteration order is not guaranteed).
|
|
*/
|
|
function forEach(collection, iteratee) {
|
|
var func = isArray(collection) ? arrayEach : baseEach;
|
|
return func(collection, getIteratee(iteratee, 3));
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.forEach` except that it iterates over elements of
|
|
* `collection` from right to left.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @alias eachRight
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Array|Object} Returns `collection`.
|
|
* @see _.forEach
|
|
* @example
|
|
*
|
|
* _.forEachRight([1, 2], function(value) {
|
|
* console.log(value);
|
|
* });
|
|
* // => Logs `2` then `1`.
|
|
*/
|
|
function forEachRight(collection, iteratee) {
|
|
var func = isArray(collection) ? arrayEachRight : baseEachRight;
|
|
return func(collection, getIteratee(iteratee, 3));
|
|
}
|
|
|
|
/**
|
|
* Creates an object composed of keys generated from the results of running
|
|
* each element of `collection` thru `iteratee`. The order of grouped values
|
|
* is determined by the order they occur in `collection`. The corresponding
|
|
* value of each key is an array of elements responsible for generating the
|
|
* key. The iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The iteratee to transform keys.
|
|
* @returns {Object} Returns the composed aggregate object.
|
|
* @example
|
|
*
|
|
* _.groupBy([6.1, 4.2, 6.3], Math.floor);
|
|
* // => { '4': [4.2], '6': [6.1, 6.3] }
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.groupBy(['one', 'two', 'three'], 'length');
|
|
* // => { '3': ['one', 'two'], '5': ['three'] }
|
|
*/
|
|
var groupBy = createAggregator(function(result, value, key) {
|
|
if (hasOwnProperty.call(result, key)) {
|
|
result[key].push(value);
|
|
} else {
|
|
baseAssignValue(result, key, [value]);
|
|
}
|
|
});
|
|
|
|
/**
|
|
* Checks if `value` is in `collection`. If `collection` is a string, it's
|
|
* checked for a substring of `value`, otherwise
|
|
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* is used for equality comparisons. If `fromIndex` is negative, it's used as
|
|
* the offset from the end of `collection`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object|string} collection The collection to inspect.
|
|
* @param {*} value The value to search for.
|
|
* @param {number} [fromIndex=0] The index to search from.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
|
|
* @returns {boolean} Returns `true` if `value` is found, else `false`.
|
|
* @example
|
|
*
|
|
* _.includes([1, 2, 3], 1);
|
|
* // => true
|
|
*
|
|
* _.includes([1, 2, 3], 1, 2);
|
|
* // => false
|
|
*
|
|
* _.includes({ 'a': 1, 'b': 2 }, 1);
|
|
* // => true
|
|
*
|
|
* _.includes('abcd', 'bc');
|
|
* // => true
|
|
*/
|
|
function includes(collection, value, fromIndex, guard) {
|
|
collection = isArrayLike(collection) ? collection : values(collection);
|
|
fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;
|
|
|
|
var length = collection.length;
|
|
if (fromIndex < 0) {
|
|
fromIndex = nativeMax(length + fromIndex, 0);
|
|
}
|
|
return isString(collection)
|
|
? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
|
|
: (!!length && baseIndexOf(collection, value, fromIndex) > -1);
|
|
}
|
|
|
|
/**
|
|
* Invokes the method at `path` of each element in `collection`, returning
|
|
* an array of the results of each invoked method. Any additional arguments
|
|
* are provided to each invoked method. If `path` is a function, it's invoked
|
|
* for, and `this` bound to, each element in `collection`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Array|Function|string} path The path of the method to invoke or
|
|
* the function invoked per iteration.
|
|
* @param {...*} [args] The arguments to invoke each method with.
|
|
* @returns {Array} Returns the array of results.
|
|
* @example
|
|
*
|
|
* _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
|
|
* // => [[1, 5, 7], [1, 2, 3]]
|
|
*
|
|
* _.invokeMap([123, 456], String.prototype.split, '');
|
|
* // => [['1', '2', '3'], ['4', '5', '6']]
|
|
*/
|
|
var invokeMap = baseRest(function(collection, path, args) {
|
|
var index = -1,
|
|
isFunc = typeof path == 'function',
|
|
result = isArrayLike(collection) ? Array(collection.length) : [];
|
|
|
|
baseEach(collection, function(value) {
|
|
result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
|
|
});
|
|
return result;
|
|
});
|
|
|
|
/**
|
|
* Creates an object composed of keys generated from the results of running
|
|
* each element of `collection` thru `iteratee`. The corresponding value of
|
|
* each key is the last element responsible for generating the key. The
|
|
* iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The iteratee to transform keys.
|
|
* @returns {Object} Returns the composed aggregate object.
|
|
* @example
|
|
*
|
|
* var array = [
|
|
* { 'dir': 'left', 'code': 97 },
|
|
* { 'dir': 'right', 'code': 100 }
|
|
* ];
|
|
*
|
|
* _.keyBy(array, function(o) {
|
|
* return String.fromCharCode(o.code);
|
|
* });
|
|
* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
|
|
*
|
|
* _.keyBy(array, 'dir');
|
|
* // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
|
|
*/
|
|
var keyBy = createAggregator(function(result, value, key) {
|
|
baseAssignValue(result, key, value);
|
|
});
|
|
|
|
/**
|
|
* Creates an array of values by running each element in `collection` thru
|
|
* `iteratee`. The iteratee is invoked with three arguments:
|
|
* (value, index|key, collection).
|
|
*
|
|
* Many lodash methods are guarded to work as iteratees for methods like
|
|
* `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
|
|
*
|
|
* The guarded methods are:
|
|
* `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
|
|
* `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
|
|
* `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
|
|
* `template`, `trim`, `trimEnd`, `trimStart`, and `words`
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the new mapped array.
|
|
* @example
|
|
*
|
|
* function square(n) {
|
|
* return n * n;
|
|
* }
|
|
*
|
|
* _.map([4, 8], square);
|
|
* // => [16, 64]
|
|
*
|
|
* _.map({ 'a': 4, 'b': 8 }, square);
|
|
* // => [16, 64] (iteration order is not guaranteed)
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney' },
|
|
* { 'user': 'fred' }
|
|
* ];
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.map(users, 'user');
|
|
* // => ['barney', 'fred']
|
|
*/
|
|
function map(collection, iteratee) {
|
|
var func = isArray(collection) ? arrayMap : baseMap;
|
|
return func(collection, getIteratee(iteratee, 3));
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.sortBy` except that it allows specifying the sort
|
|
* orders of the iteratees to sort by. If `orders` is unspecified, all values
|
|
* are sorted in ascending order. Otherwise, specify an order of "desc" for
|
|
* descending or "asc" for ascending sort order of corresponding values.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
|
|
* The iteratees to sort by.
|
|
* @param {string[]} [orders] The sort orders of `iteratees`.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
|
|
* @returns {Array} Returns the new sorted array.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'fred', 'age': 48 },
|
|
* { 'user': 'barney', 'age': 34 },
|
|
* { 'user': 'fred', 'age': 40 },
|
|
* { 'user': 'barney', 'age': 36 }
|
|
* ];
|
|
*
|
|
* // Sort by `user` in ascending order and by `age` in descending order.
|
|
* _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
|
|
* // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
|
|
*/
|
|
function orderBy(collection, iteratees, orders, guard) {
|
|
if (collection == null) {
|
|
return [];
|
|
}
|
|
if (!isArray(iteratees)) {
|
|
iteratees = iteratees == null ? [] : [iteratees];
|
|
}
|
|
orders = guard ? undefined : orders;
|
|
if (!isArray(orders)) {
|
|
orders = orders == null ? [] : [orders];
|
|
}
|
|
return baseOrderBy(collection, iteratees, orders);
|
|
}
|
|
|
|
/**
|
|
* Creates an array of elements split into two groups, the first of which
|
|
* contains elements `predicate` returns truthy for, the second of which
|
|
* contains elements `predicate` returns falsey for. The predicate is
|
|
* invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the array of grouped elements.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'age': 36, 'active': false },
|
|
* { 'user': 'fred', 'age': 40, 'active': true },
|
|
* { 'user': 'pebbles', 'age': 1, 'active': false }
|
|
* ];
|
|
*
|
|
* _.partition(users, function(o) { return o.active; });
|
|
* // => objects for [['fred'], ['barney', 'pebbles']]
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.partition(users, { 'age': 1, 'active': false });
|
|
* // => objects for [['pebbles'], ['barney', 'fred']]
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.partition(users, ['active', false]);
|
|
* // => objects for [['barney', 'pebbles'], ['fred']]
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.partition(users, 'active');
|
|
* // => objects for [['fred'], ['barney', 'pebbles']]
|
|
*/
|
|
var partition = createAggregator(function(result, value, key) {
|
|
result[key ? 0 : 1].push(value);
|
|
}, function() { return [[], []]; });
|
|
|
|
/**
|
|
* Reduces `collection` to a value which is the accumulated result of running
|
|
* each element in `collection` thru `iteratee`, where each successive
|
|
* invocation is supplied the return value of the previous. If `accumulator`
|
|
* is not given, the first element of `collection` is used as the initial
|
|
* value. The iteratee is invoked with four arguments:
|
|
* (accumulator, value, index|key, collection).
|
|
*
|
|
* Many lodash methods are guarded to work as iteratees for methods like
|
|
* `_.reduce`, `_.reduceRight`, and `_.transform`.
|
|
*
|
|
* The guarded methods are:
|
|
* `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
|
|
* and `sortBy`
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @param {*} [accumulator] The initial value.
|
|
* @returns {*} Returns the accumulated value.
|
|
* @see _.reduceRight
|
|
* @example
|
|
*
|
|
* _.reduce([1, 2], function(sum, n) {
|
|
* return sum + n;
|
|
* }, 0);
|
|
* // => 3
|
|
*
|
|
* _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
|
|
* (result[value] || (result[value] = [])).push(key);
|
|
* return result;
|
|
* }, {});
|
|
* // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
|
|
*/
|
|
function reduce(collection, iteratee, accumulator) {
|
|
var func = isArray(collection) ? arrayReduce : baseReduce,
|
|
initAccum = arguments.length < 3;
|
|
|
|
return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.reduce` except that it iterates over elements of
|
|
* `collection` from right to left.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @param {*} [accumulator] The initial value.
|
|
* @returns {*} Returns the accumulated value.
|
|
* @see _.reduce
|
|
* @example
|
|
*
|
|
* var array = [[0, 1], [2, 3], [4, 5]];
|
|
*
|
|
* _.reduceRight(array, function(flattened, other) {
|
|
* return flattened.concat(other);
|
|
* }, []);
|
|
* // => [4, 5, 2, 3, 0, 1]
|
|
*/
|
|
function reduceRight(collection, iteratee, accumulator) {
|
|
var func = isArray(collection) ? arrayReduceRight : baseReduce,
|
|
initAccum = arguments.length < 3;
|
|
|
|
return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
|
|
}
|
|
|
|
/**
|
|
* The opposite of `_.filter`; this method returns the elements of `collection`
|
|
* that `predicate` does **not** return truthy for.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the new filtered array.
|
|
* @see _.filter
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'age': 36, 'active': false },
|
|
* { 'user': 'fred', 'age': 40, 'active': true }
|
|
* ];
|
|
*
|
|
* _.reject(users, function(o) { return !o.active; });
|
|
* // => objects for ['fred']
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.reject(users, { 'age': 40, 'active': true });
|
|
* // => objects for ['barney']
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.reject(users, ['active', false]);
|
|
* // => objects for ['fred']
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.reject(users, 'active');
|
|
* // => objects for ['barney']
|
|
*/
|
|
function reject(collection, predicate) {
|
|
var func = isArray(collection) ? arrayFilter : baseFilter;
|
|
return func(collection, negate(getIteratee(predicate, 3)));
|
|
}
|
|
|
|
/**
|
|
* Gets a random element from `collection`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to sample.
|
|
* @returns {*} Returns the random element.
|
|
* @example
|
|
*
|
|
* _.sample([1, 2, 3, 4]);
|
|
* // => 2
|
|
*/
|
|
function sample(collection) {
|
|
var func = isArray(collection) ? arraySample : baseSample;
|
|
return func(collection);
|
|
}
|
|
|
|
/**
|
|
* Gets `n` random elements at unique keys from `collection` up to the
|
|
* size of `collection`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to sample.
|
|
* @param {number} [n=1] The number of elements to sample.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Array} Returns the random elements.
|
|
* @example
|
|
*
|
|
* _.sampleSize([1, 2, 3], 2);
|
|
* // => [3, 1]
|
|
*
|
|
* _.sampleSize([1, 2, 3], 4);
|
|
* // => [2, 3, 1]
|
|
*/
|
|
function sampleSize(collection, n, guard) {
|
|
if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
|
|
n = 1;
|
|
} else {
|
|
n = toInteger(n);
|
|
}
|
|
var func = isArray(collection) ? arraySampleSize : baseSampleSize;
|
|
return func(collection, n);
|
|
}
|
|
|
|
/**
|
|
* Creates an array of shuffled values, using a version of the
|
|
* [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to shuffle.
|
|
* @returns {Array} Returns the new shuffled array.
|
|
* @example
|
|
*
|
|
* _.shuffle([1, 2, 3, 4]);
|
|
* // => [4, 1, 3, 2]
|
|
*/
|
|
function shuffle(collection) {
|
|
var func = isArray(collection) ? arrayShuffle : baseShuffle;
|
|
return func(collection);
|
|
}
|
|
|
|
/**
|
|
* Gets the size of `collection` by returning its length for array-like
|
|
* values or the number of own enumerable string keyed properties for objects.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object|string} collection The collection to inspect.
|
|
* @returns {number} Returns the collection size.
|
|
* @example
|
|
*
|
|
* _.size([1, 2, 3]);
|
|
* // => 3
|
|
*
|
|
* _.size({ 'a': 1, 'b': 2 });
|
|
* // => 2
|
|
*
|
|
* _.size('pebbles');
|
|
* // => 7
|
|
*/
|
|
function size(collection) {
|
|
if (collection == null) {
|
|
return 0;
|
|
}
|
|
if (isArrayLike(collection)) {
|
|
return isString(collection) ? stringSize(collection) : collection.length;
|
|
}
|
|
var tag = getTag(collection);
|
|
if (tag == mapTag || tag == setTag) {
|
|
return collection.size;
|
|
}
|
|
return baseKeys(collection).length;
|
|
}
|
|
|
|
/**
|
|
* Checks if `predicate` returns truthy for **any** element of `collection`.
|
|
* Iteration is stopped once `predicate` returns truthy. The predicate is
|
|
* invoked with three arguments: (value, index|key, collection).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {boolean} Returns `true` if any element passes the predicate check,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.some([null, 0, 'yes', false], Boolean);
|
|
* // => true
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'active': true },
|
|
* { 'user': 'fred', 'active': false }
|
|
* ];
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.some(users, { 'user': 'barney', 'active': false });
|
|
* // => false
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.some(users, ['active', false]);
|
|
* // => true
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.some(users, 'active');
|
|
* // => true
|
|
*/
|
|
function some(collection, predicate, guard) {
|
|
var func = isArray(collection) ? arraySome : baseSome;
|
|
if (guard && isIterateeCall(collection, predicate, guard)) {
|
|
predicate = undefined;
|
|
}
|
|
return func(collection, getIteratee(predicate, 3));
|
|
}
|
|
|
|
/**
|
|
* Creates an array of elements, sorted in ascending order by the results of
|
|
* running each element in a collection thru each iteratee. This method
|
|
* performs a stable sort, that is, it preserves the original sort order of
|
|
* equal elements. The iteratees are invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {...(Function|Function[])} [iteratees=[_.identity]]
|
|
* The iteratees to sort by.
|
|
* @returns {Array} Returns the new sorted array.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'fred', 'age': 48 },
|
|
* { 'user': 'barney', 'age': 36 },
|
|
* { 'user': 'fred', 'age': 30 },
|
|
* { 'user': 'barney', 'age': 34 }
|
|
* ];
|
|
*
|
|
* _.sortBy(users, [function(o) { return o.user; }]);
|
|
* // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]
|
|
*
|
|
* _.sortBy(users, ['user', 'age']);
|
|
* // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]
|
|
*/
|
|
var sortBy = baseRest(function(collection, iteratees) {
|
|
if (collection == null) {
|
|
return [];
|
|
}
|
|
var length = iteratees.length;
|
|
if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
|
|
iteratees = [];
|
|
} else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
|
|
iteratees = [iteratees[0]];
|
|
}
|
|
return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
|
|
});
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Gets the timestamp of the number of milliseconds that have elapsed since
|
|
* the Unix epoch (1 January 1970 00:00:00 UTC).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.4.0
|
|
* @category Date
|
|
* @returns {number} Returns the timestamp.
|
|
* @example
|
|
*
|
|
* _.defer(function(stamp) {
|
|
* console.log(_.now() - stamp);
|
|
* }, _.now());
|
|
* // => Logs the number of milliseconds it took for the deferred invocation.
|
|
*/
|
|
var now = ctxNow || function() {
|
|
return root.Date.now();
|
|
};
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* The opposite of `_.before`; this method creates a function that invokes
|
|
* `func` once it's called `n` or more times.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {number} n The number of calls before `func` is invoked.
|
|
* @param {Function} func The function to restrict.
|
|
* @returns {Function} Returns the new restricted function.
|
|
* @example
|
|
*
|
|
* var saves = ['profile', 'settings'];
|
|
*
|
|
* var done = _.after(saves.length, function() {
|
|
* console.log('done saving!');
|
|
* });
|
|
*
|
|
* _.forEach(saves, function(type) {
|
|
* asyncSave({ 'type': type, 'complete': done });
|
|
* });
|
|
* // => Logs 'done saving!' after the two async saves have completed.
|
|
*/
|
|
function after(n, func) {
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
n = toInteger(n);
|
|
return function() {
|
|
if (--n < 1) {
|
|
return func.apply(this, arguments);
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes `func`, with up to `n` arguments,
|
|
* ignoring any additional arguments.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to cap arguments for.
|
|
* @param {number} [n=func.length] The arity cap.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Function} Returns the new capped function.
|
|
* @example
|
|
*
|
|
* _.map(['6', '8', '10'], _.ary(parseInt, 1));
|
|
* // => [6, 8, 10]
|
|
*/
|
|
function ary(func, n, guard) {
|
|
n = guard ? undefined : n;
|
|
n = (func && n == null) ? func.length : n;
|
|
return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes `func`, with the `this` binding and arguments
|
|
* of the created function, while it's called less than `n` times. Subsequent
|
|
* calls to the created function return the result of the last `func` invocation.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Function
|
|
* @param {number} n The number of calls at which `func` is no longer invoked.
|
|
* @param {Function} func The function to restrict.
|
|
* @returns {Function} Returns the new restricted function.
|
|
* @example
|
|
*
|
|
* jQuery(element).on('click', _.before(5, addContactToList));
|
|
* // => Allows adding up to 4 contacts to the list.
|
|
*/
|
|
function before(n, func) {
|
|
var result;
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
n = toInteger(n);
|
|
return function() {
|
|
if (--n > 0) {
|
|
result = func.apply(this, arguments);
|
|
}
|
|
if (n <= 1) {
|
|
func = undefined;
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with the `this` binding of `thisArg`
|
|
* and `partials` prepended to the arguments it receives.
|
|
*
|
|
* The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
|
|
* may be used as a placeholder for partially applied arguments.
|
|
*
|
|
* **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
|
|
* property of bound functions.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {Function} func The function to bind.
|
|
* @param {*} thisArg The `this` binding of `func`.
|
|
* @param {...*} [partials] The arguments to be partially applied.
|
|
* @returns {Function} Returns the new bound function.
|
|
* @example
|
|
*
|
|
* function greet(greeting, punctuation) {
|
|
* return greeting + ' ' + this.user + punctuation;
|
|
* }
|
|
*
|
|
* var object = { 'user': 'fred' };
|
|
*
|
|
* var bound = _.bind(greet, object, 'hi');
|
|
* bound('!');
|
|
* // => 'hi fred!'
|
|
*
|
|
* // Bound with placeholders.
|
|
* var bound = _.bind(greet, object, _, '!');
|
|
* bound('hi');
|
|
* // => 'hi fred!'
|
|
*/
|
|
var bind = baseRest(function(func, thisArg, partials) {
|
|
var bitmask = WRAP_BIND_FLAG;
|
|
if (partials.length) {
|
|
var holders = replaceHolders(partials, getHolder(bind));
|
|
bitmask |= WRAP_PARTIAL_FLAG;
|
|
}
|
|
return createWrap(func, bitmask, thisArg, partials, holders);
|
|
});
|
|
|
|
/**
|
|
* Creates a function that invokes the method at `object[key]` with `partials`
|
|
* prepended to the arguments it receives.
|
|
*
|
|
* This method differs from `_.bind` by allowing bound functions to reference
|
|
* methods that may be redefined or don't yet exist. See
|
|
* [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
|
|
* for more details.
|
|
*
|
|
* The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
|
|
* builds, may be used as a placeholder for partially applied arguments.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.10.0
|
|
* @category Function
|
|
* @param {Object} object The object to invoke the method on.
|
|
* @param {string} key The key of the method.
|
|
* @param {...*} [partials] The arguments to be partially applied.
|
|
* @returns {Function} Returns the new bound function.
|
|
* @example
|
|
*
|
|
* var object = {
|
|
* 'user': 'fred',
|
|
* 'greet': function(greeting, punctuation) {
|
|
* return greeting + ' ' + this.user + punctuation;
|
|
* }
|
|
* };
|
|
*
|
|
* var bound = _.bindKey(object, 'greet', 'hi');
|
|
* bound('!');
|
|
* // => 'hi fred!'
|
|
*
|
|
* object.greet = function(greeting, punctuation) {
|
|
* return greeting + 'ya ' + this.user + punctuation;
|
|
* };
|
|
*
|
|
* bound('!');
|
|
* // => 'hiya fred!'
|
|
*
|
|
* // Bound with placeholders.
|
|
* var bound = _.bindKey(object, 'greet', _, '!');
|
|
* bound('hi');
|
|
* // => 'hiya fred!'
|
|
*/
|
|
var bindKey = baseRest(function(object, key, partials) {
|
|
var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
|
|
if (partials.length) {
|
|
var holders = replaceHolders(partials, getHolder(bindKey));
|
|
bitmask |= WRAP_PARTIAL_FLAG;
|
|
}
|
|
return createWrap(key, bitmask, object, partials, holders);
|
|
});
|
|
|
|
/**
|
|
* Creates a function that accepts arguments of `func` and either invokes
|
|
* `func` returning its result, if at least `arity` number of arguments have
|
|
* been provided, or returns a function that accepts the remaining `func`
|
|
* arguments, and so on. The arity of `func` may be specified if `func.length`
|
|
* is not sufficient.
|
|
*
|
|
* The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
|
|
* may be used as a placeholder for provided arguments.
|
|
*
|
|
* **Note:** This method doesn't set the "length" property of curried functions.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to curry.
|
|
* @param {number} [arity=func.length] The arity of `func`.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Function} Returns the new curried function.
|
|
* @example
|
|
*
|
|
* var abc = function(a, b, c) {
|
|
* return [a, b, c];
|
|
* };
|
|
*
|
|
* var curried = _.curry(abc);
|
|
*
|
|
* curried(1)(2)(3);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* curried(1, 2)(3);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* curried(1, 2, 3);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* // Curried with placeholders.
|
|
* curried(1)(_, 3)(2);
|
|
* // => [1, 2, 3]
|
|
*/
|
|
function curry(func, arity, guard) {
|
|
arity = guard ? undefined : arity;
|
|
var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
|
|
result.placeholder = curry.placeholder;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.curry` except that arguments are applied to `func`
|
|
* in the manner of `_.partialRight` instead of `_.partial`.
|
|
*
|
|
* The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
|
|
* builds, may be used as a placeholder for provided arguments.
|
|
*
|
|
* **Note:** This method doesn't set the "length" property of curried functions.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to curry.
|
|
* @param {number} [arity=func.length] The arity of `func`.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Function} Returns the new curried function.
|
|
* @example
|
|
*
|
|
* var abc = function(a, b, c) {
|
|
* return [a, b, c];
|
|
* };
|
|
*
|
|
* var curried = _.curryRight(abc);
|
|
*
|
|
* curried(3)(2)(1);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* curried(2, 3)(1);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* curried(1, 2, 3);
|
|
* // => [1, 2, 3]
|
|
*
|
|
* // Curried with placeholders.
|
|
* curried(3)(1, _)(2);
|
|
* // => [1, 2, 3]
|
|
*/
|
|
function curryRight(func, arity, guard) {
|
|
arity = guard ? undefined : arity;
|
|
var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
|
|
result.placeholder = curryRight.placeholder;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a debounced function that delays invoking `func` until after `wait`
|
|
* milliseconds have elapsed since the last time the debounced function was
|
|
* invoked. The debounced function comes with a `cancel` method to cancel
|
|
* delayed `func` invocations and a `flush` method to immediately invoke them.
|
|
* Provide `options` to indicate whether `func` should be invoked on the
|
|
* leading and/or trailing edge of the `wait` timeout. The `func` is invoked
|
|
* with the last arguments provided to the debounced function. Subsequent
|
|
* calls to the debounced function return the result of the last `func`
|
|
* invocation.
|
|
*
|
|
* **Note:** If `leading` and `trailing` options are `true`, `func` is
|
|
* invoked on the trailing edge of the timeout only if the debounced function
|
|
* is invoked more than once during the `wait` timeout.
|
|
*
|
|
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
|
|
* until to the next tick, similar to `setTimeout` with a timeout of `0`.
|
|
*
|
|
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
|
|
* for details over the differences between `_.debounce` and `_.throttle`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {Function} func The function to debounce.
|
|
* @param {number} [wait=0] The number of milliseconds to delay.
|
|
* @param {Object} [options={}] The options object.
|
|
* @param {boolean} [options.leading=false]
|
|
* Specify invoking on the leading edge of the timeout.
|
|
* @param {number} [options.maxWait]
|
|
* The maximum time `func` is allowed to be delayed before it's invoked.
|
|
* @param {boolean} [options.trailing=true]
|
|
* Specify invoking on the trailing edge of the timeout.
|
|
* @returns {Function} Returns the new debounced function.
|
|
* @example
|
|
*
|
|
* // Avoid costly calculations while the window size is in flux.
|
|
* jQuery(window).on('resize', _.debounce(calculateLayout, 150));
|
|
*
|
|
* // Invoke `sendMail` when clicked, debouncing subsequent calls.
|
|
* jQuery(element).on('click', _.debounce(sendMail, 300, {
|
|
* 'leading': true,
|
|
* 'trailing': false
|
|
* }));
|
|
*
|
|
* // Ensure `batchLog` is invoked once after 1 second of debounced calls.
|
|
* var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
|
|
* var source = new EventSource('/stream');
|
|
* jQuery(source).on('message', debounced);
|
|
*
|
|
* // Cancel the trailing debounced invocation.
|
|
* jQuery(window).on('popstate', debounced.cancel);
|
|
*/
|
|
function debounce(func, wait, options) {
|
|
var lastArgs,
|
|
lastThis,
|
|
maxWait,
|
|
result,
|
|
timerId,
|
|
lastCallTime,
|
|
lastInvokeTime = 0,
|
|
leading = false,
|
|
maxing = false,
|
|
trailing = true;
|
|
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
wait = toNumber(wait) || 0;
|
|
if (isObject(options)) {
|
|
leading = !!options.leading;
|
|
maxing = 'maxWait' in options;
|
|
maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
|
|
trailing = 'trailing' in options ? !!options.trailing : trailing;
|
|
}
|
|
|
|
function invokeFunc(time) {
|
|
var args = lastArgs,
|
|
thisArg = lastThis;
|
|
|
|
lastArgs = lastThis = undefined;
|
|
lastInvokeTime = time;
|
|
result = func.apply(thisArg, args);
|
|
return result;
|
|
}
|
|
|
|
function leadingEdge(time) {
|
|
// Reset any `maxWait` timer.
|
|
lastInvokeTime = time;
|
|
// Start the timer for the trailing edge.
|
|
timerId = setTimeout(timerExpired, wait);
|
|
// Invoke the leading edge.
|
|
return leading ? invokeFunc(time) : result;
|
|
}
|
|
|
|
function remainingWait(time) {
|
|
var timeSinceLastCall = time - lastCallTime,
|
|
timeSinceLastInvoke = time - lastInvokeTime,
|
|
timeWaiting = wait - timeSinceLastCall;
|
|
|
|
return maxing
|
|
? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
|
|
: timeWaiting;
|
|
}
|
|
|
|
function shouldInvoke(time) {
|
|
var timeSinceLastCall = time - lastCallTime,
|
|
timeSinceLastInvoke = time - lastInvokeTime;
|
|
|
|
// Either this is the first call, activity has stopped and we're at the
|
|
// trailing edge, the system time has gone backwards and we're treating
|
|
// it as the trailing edge, or we've hit the `maxWait` limit.
|
|
return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
|
|
(timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
|
|
}
|
|
|
|
function timerExpired() {
|
|
var time = now();
|
|
if (shouldInvoke(time)) {
|
|
return trailingEdge(time);
|
|
}
|
|
// Restart the timer.
|
|
timerId = setTimeout(timerExpired, remainingWait(time));
|
|
}
|
|
|
|
function trailingEdge(time) {
|
|
timerId = undefined;
|
|
|
|
// Only invoke if we have `lastArgs` which means `func` has been
|
|
// debounced at least once.
|
|
if (trailing && lastArgs) {
|
|
return invokeFunc(time);
|
|
}
|
|
lastArgs = lastThis = undefined;
|
|
return result;
|
|
}
|
|
|
|
function cancel() {
|
|
if (timerId !== undefined) {
|
|
clearTimeout(timerId);
|
|
}
|
|
lastInvokeTime = 0;
|
|
lastArgs = lastCallTime = lastThis = timerId = undefined;
|
|
}
|
|
|
|
function flush() {
|
|
return timerId === undefined ? result : trailingEdge(now());
|
|
}
|
|
|
|
function debounced() {
|
|
var time = now(),
|
|
isInvoking = shouldInvoke(time);
|
|
|
|
lastArgs = arguments;
|
|
lastThis = this;
|
|
lastCallTime = time;
|
|
|
|
if (isInvoking) {
|
|
if (timerId === undefined) {
|
|
return leadingEdge(lastCallTime);
|
|
}
|
|
if (maxing) {
|
|
// Handle invocations in a tight loop.
|
|
clearTimeout(timerId);
|
|
timerId = setTimeout(timerExpired, wait);
|
|
return invokeFunc(lastCallTime);
|
|
}
|
|
}
|
|
if (timerId === undefined) {
|
|
timerId = setTimeout(timerExpired, wait);
|
|
}
|
|
return result;
|
|
}
|
|
debounced.cancel = cancel;
|
|
debounced.flush = flush;
|
|
return debounced;
|
|
}
|
|
|
|
/**
|
|
* Defers invoking the `func` until the current call stack has cleared. Any
|
|
* additional arguments are provided to `func` when it's invoked.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {Function} func The function to defer.
|
|
* @param {...*} [args] The arguments to invoke `func` with.
|
|
* @returns {number} Returns the timer id.
|
|
* @example
|
|
*
|
|
* _.defer(function(text) {
|
|
* console.log(text);
|
|
* }, 'deferred');
|
|
* // => Logs 'deferred' after one millisecond.
|
|
*/
|
|
var defer = baseRest(function(func, args) {
|
|
return baseDelay(func, 1, args);
|
|
});
|
|
|
|
/**
|
|
* Invokes `func` after `wait` milliseconds. Any additional arguments are
|
|
* provided to `func` when it's invoked.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {Function} func The function to delay.
|
|
* @param {number} wait The number of milliseconds to delay invocation.
|
|
* @param {...*} [args] The arguments to invoke `func` with.
|
|
* @returns {number} Returns the timer id.
|
|
* @example
|
|
*
|
|
* _.delay(function(text) {
|
|
* console.log(text);
|
|
* }, 1000, 'later');
|
|
* // => Logs 'later' after one second.
|
|
*/
|
|
var delay = baseRest(function(func, wait, args) {
|
|
return baseDelay(func, toNumber(wait) || 0, args);
|
|
});
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with arguments reversed.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to flip arguments for.
|
|
* @returns {Function} Returns the new flipped function.
|
|
* @example
|
|
*
|
|
* var flipped = _.flip(function() {
|
|
* return _.toArray(arguments);
|
|
* });
|
|
*
|
|
* flipped('a', 'b', 'c', 'd');
|
|
* // => ['d', 'c', 'b', 'a']
|
|
*/
|
|
function flip(func) {
|
|
return createWrap(func, WRAP_FLIP_FLAG);
|
|
}
|
|
|
|
/**
|
|
* Creates a function that memoizes the result of `func`. If `resolver` is
|
|
* provided, it determines the cache key for storing the result based on the
|
|
* arguments provided to the memoized function. By default, the first argument
|
|
* provided to the memoized function is used as the map cache key. The `func`
|
|
* is invoked with the `this` binding of the memoized function.
|
|
*
|
|
* **Note:** The cache is exposed as the `cache` property on the memoized
|
|
* function. Its creation may be customized by replacing the `_.memoize.Cache`
|
|
* constructor with one whose instances implement the
|
|
* [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
|
|
* method interface of `clear`, `delete`, `get`, `has`, and `set`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {Function} func The function to have its output memoized.
|
|
* @param {Function} [resolver] The function to resolve the cache key.
|
|
* @returns {Function} Returns the new memoized function.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': 2 };
|
|
* var other = { 'c': 3, 'd': 4 };
|
|
*
|
|
* var values = _.memoize(_.values);
|
|
* values(object);
|
|
* // => [1, 2]
|
|
*
|
|
* values(other);
|
|
* // => [3, 4]
|
|
*
|
|
* object.a = 2;
|
|
* values(object);
|
|
* // => [1, 2]
|
|
*
|
|
* // Modify the result cache.
|
|
* values.cache.set(object, ['a', 'b']);
|
|
* values(object);
|
|
* // => ['a', 'b']
|
|
*
|
|
* // Replace `_.memoize.Cache`.
|
|
* _.memoize.Cache = WeakMap;
|
|
*/
|
|
function memoize(func, resolver) {
|
|
if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
var memoized = function() {
|
|
var args = arguments,
|
|
key = resolver ? resolver.apply(this, args) : args[0],
|
|
cache = memoized.cache;
|
|
|
|
if (cache.has(key)) {
|
|
return cache.get(key);
|
|
}
|
|
var result = func.apply(this, args);
|
|
memoized.cache = cache.set(key, result) || cache;
|
|
return result;
|
|
};
|
|
memoized.cache = new (memoize.Cache || MapCache);
|
|
return memoized;
|
|
}
|
|
|
|
// Expose `MapCache`.
|
|
memoize.Cache = MapCache;
|
|
|
|
/**
|
|
* Creates a function that negates the result of the predicate `func`. The
|
|
* `func` predicate is invoked with the `this` binding and arguments of the
|
|
* created function.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Function
|
|
* @param {Function} predicate The predicate to negate.
|
|
* @returns {Function} Returns the new negated function.
|
|
* @example
|
|
*
|
|
* function isEven(n) {
|
|
* return n % 2 == 0;
|
|
* }
|
|
*
|
|
* _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
|
|
* // => [1, 3, 5]
|
|
*/
|
|
function negate(predicate) {
|
|
if (typeof predicate != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
return function() {
|
|
var args = arguments;
|
|
switch (args.length) {
|
|
case 0: return !predicate.call(this);
|
|
case 1: return !predicate.call(this, args[0]);
|
|
case 2: return !predicate.call(this, args[0], args[1]);
|
|
case 3: return !predicate.call(this, args[0], args[1], args[2]);
|
|
}
|
|
return !predicate.apply(this, args);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates a function that is restricted to invoking `func` once. Repeat calls
|
|
* to the function return the value of the first invocation. The `func` is
|
|
* invoked with the `this` binding and arguments of the created function.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {Function} func The function to restrict.
|
|
* @returns {Function} Returns the new restricted function.
|
|
* @example
|
|
*
|
|
* var initialize = _.once(createApplication);
|
|
* initialize();
|
|
* initialize();
|
|
* // => `createApplication` is invoked once
|
|
*/
|
|
function once(func) {
|
|
return before(2, func);
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with its arguments transformed.
|
|
*
|
|
* @static
|
|
* @since 4.0.0
|
|
* @memberOf _
|
|
* @category Function
|
|
* @param {Function} func The function to wrap.
|
|
* @param {...(Function|Function[])} [transforms=[_.identity]]
|
|
* The argument transforms.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* function doubled(n) {
|
|
* return n * 2;
|
|
* }
|
|
*
|
|
* function square(n) {
|
|
* return n * n;
|
|
* }
|
|
*
|
|
* var func = _.overArgs(function(x, y) {
|
|
* return [x, y];
|
|
* }, [square, doubled]);
|
|
*
|
|
* func(9, 3);
|
|
* // => [81, 6]
|
|
*
|
|
* func(10, 5);
|
|
* // => [100, 10]
|
|
*/
|
|
var overArgs = castRest(function(func, transforms) {
|
|
transforms = (transforms.length == 1 && isArray(transforms[0]))
|
|
? arrayMap(transforms[0], baseUnary(getIteratee()))
|
|
: arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));
|
|
|
|
var funcsLength = transforms.length;
|
|
return baseRest(function(args) {
|
|
var index = -1,
|
|
length = nativeMin(args.length, funcsLength);
|
|
|
|
while (++index < length) {
|
|
args[index] = transforms[index].call(this, args[index]);
|
|
}
|
|
return apply(func, this, args);
|
|
});
|
|
});
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with `partials` prepended to the
|
|
* arguments it receives. This method is like `_.bind` except it does **not**
|
|
* alter the `this` binding.
|
|
*
|
|
* The `_.partial.placeholder` value, which defaults to `_` in monolithic
|
|
* builds, may be used as a placeholder for partially applied arguments.
|
|
*
|
|
* **Note:** This method doesn't set the "length" property of partially
|
|
* applied functions.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.2.0
|
|
* @category Function
|
|
* @param {Function} func The function to partially apply arguments to.
|
|
* @param {...*} [partials] The arguments to be partially applied.
|
|
* @returns {Function} Returns the new partially applied function.
|
|
* @example
|
|
*
|
|
* function greet(greeting, name) {
|
|
* return greeting + ' ' + name;
|
|
* }
|
|
*
|
|
* var sayHelloTo = _.partial(greet, 'hello');
|
|
* sayHelloTo('fred');
|
|
* // => 'hello fred'
|
|
*
|
|
* // Partially applied with placeholders.
|
|
* var greetFred = _.partial(greet, _, 'fred');
|
|
* greetFred('hi');
|
|
* // => 'hi fred'
|
|
*/
|
|
var partial = baseRest(function(func, partials) {
|
|
var holders = replaceHolders(partials, getHolder(partial));
|
|
return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.partial` except that partially applied arguments
|
|
* are appended to the arguments it receives.
|
|
*
|
|
* The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
|
|
* builds, may be used as a placeholder for partially applied arguments.
|
|
*
|
|
* **Note:** This method doesn't set the "length" property of partially
|
|
* applied functions.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to partially apply arguments to.
|
|
* @param {...*} [partials] The arguments to be partially applied.
|
|
* @returns {Function} Returns the new partially applied function.
|
|
* @example
|
|
*
|
|
* function greet(greeting, name) {
|
|
* return greeting + ' ' + name;
|
|
* }
|
|
*
|
|
* var greetFred = _.partialRight(greet, 'fred');
|
|
* greetFred('hi');
|
|
* // => 'hi fred'
|
|
*
|
|
* // Partially applied with placeholders.
|
|
* var sayHelloTo = _.partialRight(greet, 'hello', _);
|
|
* sayHelloTo('fred');
|
|
* // => 'hello fred'
|
|
*/
|
|
var partialRight = baseRest(function(func, partials) {
|
|
var holders = replaceHolders(partials, getHolder(partialRight));
|
|
return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);
|
|
});
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with arguments arranged according
|
|
* to the specified `indexes` where the argument value at the first index is
|
|
* provided as the first argument, the argument value at the second index is
|
|
* provided as the second argument, and so on.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to rearrange arguments for.
|
|
* @param {...(number|number[])} indexes The arranged argument indexes.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* var rearged = _.rearg(function(a, b, c) {
|
|
* return [a, b, c];
|
|
* }, [2, 0, 1]);
|
|
*
|
|
* rearged('b', 'c', 'a')
|
|
* // => ['a', 'b', 'c']
|
|
*/
|
|
var rearg = flatRest(function(func, indexes) {
|
|
return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
|
|
});
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with the `this` binding of the
|
|
* created function and arguments from `start` and beyond provided as
|
|
* an array.
|
|
*
|
|
* **Note:** This method is based on the
|
|
* [rest parameter](https://mdn.io/rest_parameters).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to apply a rest parameter to.
|
|
* @param {number} [start=func.length-1] The start position of the rest parameter.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* var say = _.rest(function(what, names) {
|
|
* return what + ' ' + _.initial(names).join(', ') +
|
|
* (_.size(names) > 1 ? ', & ' : '') + _.last(names);
|
|
* });
|
|
*
|
|
* say('hello', 'fred', 'barney', 'pebbles');
|
|
* // => 'hello fred, barney, & pebbles'
|
|
*/
|
|
function rest(func, start) {
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
start = start === undefined ? start : toInteger(start);
|
|
return baseRest(func, start);
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with the `this` binding of the
|
|
* create function and an array of arguments much like
|
|
* [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
|
|
*
|
|
* **Note:** This method is based on the
|
|
* [spread operator](https://mdn.io/spread_operator).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.2.0
|
|
* @category Function
|
|
* @param {Function} func The function to spread arguments over.
|
|
* @param {number} [start=0] The start position of the spread.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* var say = _.spread(function(who, what) {
|
|
* return who + ' says ' + what;
|
|
* });
|
|
*
|
|
* say(['fred', 'hello']);
|
|
* // => 'fred says hello'
|
|
*
|
|
* var numbers = Promise.all([
|
|
* Promise.resolve(40),
|
|
* Promise.resolve(36)
|
|
* ]);
|
|
*
|
|
* numbers.then(_.spread(function(x, y) {
|
|
* return x + y;
|
|
* }));
|
|
* // => a Promise of 76
|
|
*/
|
|
function spread(func, start) {
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
start = start == null ? 0 : nativeMax(toInteger(start), 0);
|
|
return baseRest(function(args) {
|
|
var array = args[start],
|
|
otherArgs = castSlice(args, 0, start);
|
|
|
|
if (array) {
|
|
arrayPush(otherArgs, array);
|
|
}
|
|
return apply(func, this, otherArgs);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates a throttled function that only invokes `func` at most once per
|
|
* every `wait` milliseconds. The throttled function comes with a `cancel`
|
|
* method to cancel delayed `func` invocations and a `flush` method to
|
|
* immediately invoke them. Provide `options` to indicate whether `func`
|
|
* should be invoked on the leading and/or trailing edge of the `wait`
|
|
* timeout. The `func` is invoked with the last arguments provided to the
|
|
* throttled function. Subsequent calls to the throttled function return the
|
|
* result of the last `func` invocation.
|
|
*
|
|
* **Note:** If `leading` and `trailing` options are `true`, `func` is
|
|
* invoked on the trailing edge of the timeout only if the throttled function
|
|
* is invoked more than once during the `wait` timeout.
|
|
*
|
|
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
|
|
* until to the next tick, similar to `setTimeout` with a timeout of `0`.
|
|
*
|
|
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
|
|
* for details over the differences between `_.throttle` and `_.debounce`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {Function} func The function to throttle.
|
|
* @param {number} [wait=0] The number of milliseconds to throttle invocations to.
|
|
* @param {Object} [options={}] The options object.
|
|
* @param {boolean} [options.leading=true]
|
|
* Specify invoking on the leading edge of the timeout.
|
|
* @param {boolean} [options.trailing=true]
|
|
* Specify invoking on the trailing edge of the timeout.
|
|
* @returns {Function} Returns the new throttled function.
|
|
* @example
|
|
*
|
|
* // Avoid excessively updating the position while scrolling.
|
|
* jQuery(window).on('scroll', _.throttle(updatePosition, 100));
|
|
*
|
|
* // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
|
|
* var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
|
|
* jQuery(element).on('click', throttled);
|
|
*
|
|
* // Cancel the trailing throttled invocation.
|
|
* jQuery(window).on('popstate', throttled.cancel);
|
|
*/
|
|
function throttle(func, wait, options) {
|
|
var leading = true,
|
|
trailing = true;
|
|
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
if (isObject(options)) {
|
|
leading = 'leading' in options ? !!options.leading : leading;
|
|
trailing = 'trailing' in options ? !!options.trailing : trailing;
|
|
}
|
|
return debounce(func, wait, {
|
|
'leading': leading,
|
|
'maxWait': wait,
|
|
'trailing': trailing
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates a function that accepts up to one argument, ignoring any
|
|
* additional arguments.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to cap arguments for.
|
|
* @returns {Function} Returns the new capped function.
|
|
* @example
|
|
*
|
|
* _.map(['6', '8', '10'], _.unary(parseInt));
|
|
* // => [6, 8, 10]
|
|
*/
|
|
function unary(func) {
|
|
return ary(func, 1);
|
|
}
|
|
|
|
/**
|
|
* Creates a function that provides `value` to `wrapper` as its first
|
|
* argument. Any additional arguments provided to the function are appended
|
|
* to those provided to the `wrapper`. The wrapper is invoked with the `this`
|
|
* binding of the created function.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Function
|
|
* @param {*} value The value to wrap.
|
|
* @param {Function} [wrapper=identity] The wrapper function.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* var p = _.wrap(_.escape, function(func, text) {
|
|
* return '<p>' + func(text) + '</p>';
|
|
* });
|
|
*
|
|
* p('fred, barney, & pebbles');
|
|
* // => '<p>fred, barney, & pebbles</p>'
|
|
*/
|
|
function wrap(value, wrapper) {
|
|
return partial(castFunction(wrapper), value);
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Casts `value` as an array if it's not one.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.4.0
|
|
* @category Lang
|
|
* @param {*} value The value to inspect.
|
|
* @returns {Array} Returns the cast array.
|
|
* @example
|
|
*
|
|
* _.castArray(1);
|
|
* // => [1]
|
|
*
|
|
* _.castArray({ 'a': 1 });
|
|
* // => [{ 'a': 1 }]
|
|
*
|
|
* _.castArray('abc');
|
|
* // => ['abc']
|
|
*
|
|
* _.castArray(null);
|
|
* // => [null]
|
|
*
|
|
* _.castArray(undefined);
|
|
* // => [undefined]
|
|
*
|
|
* _.castArray();
|
|
* // => []
|
|
*
|
|
* var array = [1, 2, 3];
|
|
* console.log(_.castArray(array) === array);
|
|
* // => true
|
|
*/
|
|
function castArray() {
|
|
if (!arguments.length) {
|
|
return [];
|
|
}
|
|
var value = arguments[0];
|
|
return isArray(value) ? value : [value];
|
|
}
|
|
|
|
/**
|
|
* Creates a shallow clone of `value`.
|
|
*
|
|
* **Note:** This method is loosely based on the
|
|
* [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
|
|
* and supports cloning arrays, array buffers, booleans, date objects, maps,
|
|
* numbers, `Object` objects, regexes, sets, strings, symbols, and typed
|
|
* arrays. The own enumerable properties of `arguments` objects are cloned
|
|
* as plain objects. An empty object is returned for uncloneable values such
|
|
* as error objects, functions, DOM nodes, and WeakMaps.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to clone.
|
|
* @returns {*} Returns the cloned value.
|
|
* @see _.cloneDeep
|
|
* @example
|
|
*
|
|
* var objects = [{ 'a': 1 }, { 'b': 2 }];
|
|
*
|
|
* var shallow = _.clone(objects);
|
|
* console.log(shallow[0] === objects[0]);
|
|
* // => true
|
|
*/
|
|
function clone(value) {
|
|
return baseClone(value, CLONE_SYMBOLS_FLAG);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.clone` except that it accepts `customizer` which
|
|
* is invoked to produce the cloned value. If `customizer` returns `undefined`,
|
|
* cloning is handled by the method instead. The `customizer` is invoked with
|
|
* up to four arguments; (value [, index|key, object, stack]).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to clone.
|
|
* @param {Function} [customizer] The function to customize cloning.
|
|
* @returns {*} Returns the cloned value.
|
|
* @see _.cloneDeepWith
|
|
* @example
|
|
*
|
|
* function customizer(value) {
|
|
* if (_.isElement(value)) {
|
|
* return value.cloneNode(false);
|
|
* }
|
|
* }
|
|
*
|
|
* var el = _.cloneWith(document.body, customizer);
|
|
*
|
|
* console.log(el === document.body);
|
|
* // => false
|
|
* console.log(el.nodeName);
|
|
* // => 'BODY'
|
|
* console.log(el.childNodes.length);
|
|
* // => 0
|
|
*/
|
|
function cloneWith(value, customizer) {
|
|
customizer = typeof customizer == 'function' ? customizer : undefined;
|
|
return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.clone` except that it recursively clones `value`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to recursively clone.
|
|
* @returns {*} Returns the deep cloned value.
|
|
* @see _.clone
|
|
* @example
|
|
*
|
|
* var objects = [{ 'a': 1 }, { 'b': 2 }];
|
|
*
|
|
* var deep = _.cloneDeep(objects);
|
|
* console.log(deep[0] === objects[0]);
|
|
* // => false
|
|
*/
|
|
function cloneDeep(value) {
|
|
return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.cloneWith` except that it recursively clones `value`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to recursively clone.
|
|
* @param {Function} [customizer] The function to customize cloning.
|
|
* @returns {*} Returns the deep cloned value.
|
|
* @see _.cloneWith
|
|
* @example
|
|
*
|
|
* function customizer(value) {
|
|
* if (_.isElement(value)) {
|
|
* return value.cloneNode(true);
|
|
* }
|
|
* }
|
|
*
|
|
* var el = _.cloneDeepWith(document.body, customizer);
|
|
*
|
|
* console.log(el === document.body);
|
|
* // => false
|
|
* console.log(el.nodeName);
|
|
* // => 'BODY'
|
|
* console.log(el.childNodes.length);
|
|
* // => 20
|
|
*/
|
|
function cloneDeepWith(value, customizer) {
|
|
customizer = typeof customizer == 'function' ? customizer : undefined;
|
|
return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
|
|
}
|
|
|
|
/**
|
|
* Checks if `object` conforms to `source` by invoking the predicate
|
|
* properties of `source` with the corresponding property values of `object`.
|
|
*
|
|
* **Note:** This method is equivalent to `_.conforms` when `source` is
|
|
* partially applied.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.14.0
|
|
* @category Lang
|
|
* @param {Object} object The object to inspect.
|
|
* @param {Object} source The object of property predicates to conform to.
|
|
* @returns {boolean} Returns `true` if `object` conforms, else `false`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': 2 };
|
|
*
|
|
* _.conformsTo(object, { 'b': function(n) { return n > 1; } });
|
|
* // => true
|
|
*
|
|
* _.conformsTo(object, { 'b': function(n) { return n > 2; } });
|
|
* // => false
|
|
*/
|
|
function conformsTo(object, source) {
|
|
return source == null || baseConformsTo(object, source, keys(source));
|
|
}
|
|
|
|
/**
|
|
* Performs a
|
|
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
|
* comparison between two values to determine if they are equivalent.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1 };
|
|
* var other = { 'a': 1 };
|
|
*
|
|
* _.eq(object, object);
|
|
* // => true
|
|
*
|
|
* _.eq(object, other);
|
|
* // => false
|
|
*
|
|
* _.eq('a', 'a');
|
|
* // => true
|
|
*
|
|
* _.eq('a', Object('a'));
|
|
* // => false
|
|
*
|
|
* _.eq(NaN, NaN);
|
|
* // => true
|
|
*/
|
|
function eq(value, other) {
|
|
return value === other || (value !== value && other !== other);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is greater than `other`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.9.0
|
|
* @category Lang
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if `value` is greater than `other`,
|
|
* else `false`.
|
|
* @see _.lt
|
|
* @example
|
|
*
|
|
* _.gt(3, 1);
|
|
* // => true
|
|
*
|
|
* _.gt(3, 3);
|
|
* // => false
|
|
*
|
|
* _.gt(1, 3);
|
|
* // => false
|
|
*/
|
|
var gt = createRelationalOperation(baseGt);
|
|
|
|
/**
|
|
* Checks if `value` is greater than or equal to `other`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.9.0
|
|
* @category Lang
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if `value` is greater than or equal to
|
|
* `other`, else `false`.
|
|
* @see _.lte
|
|
* @example
|
|
*
|
|
* _.gte(3, 1);
|
|
* // => true
|
|
*
|
|
* _.gte(3, 3);
|
|
* // => true
|
|
*
|
|
* _.gte(1, 3);
|
|
* // => false
|
|
*/
|
|
var gte = createRelationalOperation(function(value, other) {
|
|
return value >= other;
|
|
});
|
|
|
|
/**
|
|
* Checks if `value` is likely an `arguments` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an `arguments` object,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.isArguments(function() { return arguments; }());
|
|
* // => true
|
|
*
|
|
* _.isArguments([1, 2, 3]);
|
|
* // => false
|
|
*/
|
|
var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
|
|
return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
|
|
!propertyIsEnumerable.call(value, 'callee');
|
|
};
|
|
|
|
/**
|
|
* Checks if `value` is classified as an `Array` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an array, else `false`.
|
|
* @example
|
|
*
|
|
* _.isArray([1, 2, 3]);
|
|
* // => true
|
|
*
|
|
* _.isArray(document.body.children);
|
|
* // => false
|
|
*
|
|
* _.isArray('abc');
|
|
* // => false
|
|
*
|
|
* _.isArray(_.noop);
|
|
* // => false
|
|
*/
|
|
var isArray = Array.isArray;
|
|
|
|
/**
|
|
* Checks if `value` is classified as an `ArrayBuffer` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.3.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
|
|
* @example
|
|
*
|
|
* _.isArrayBuffer(new ArrayBuffer(2));
|
|
* // => true
|
|
*
|
|
* _.isArrayBuffer(new Array(2));
|
|
* // => false
|
|
*/
|
|
var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;
|
|
|
|
/**
|
|
* Checks if `value` is array-like. A value is considered array-like if it's
|
|
* not a function and has a `value.length` that's an integer greater than or
|
|
* equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is array-like, else `false`.
|
|
* @example
|
|
*
|
|
* _.isArrayLike([1, 2, 3]);
|
|
* // => true
|
|
*
|
|
* _.isArrayLike(document.body.children);
|
|
* // => true
|
|
*
|
|
* _.isArrayLike('abc');
|
|
* // => true
|
|
*
|
|
* _.isArrayLike(_.noop);
|
|
* // => false
|
|
*/
|
|
function isArrayLike(value) {
|
|
return value != null && isLength(value.length) && !isFunction(value);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.isArrayLike` except that it also checks if `value`
|
|
* is an object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an array-like object,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.isArrayLikeObject([1, 2, 3]);
|
|
* // => true
|
|
*
|
|
* _.isArrayLikeObject(document.body.children);
|
|
* // => true
|
|
*
|
|
* _.isArrayLikeObject('abc');
|
|
* // => false
|
|
*
|
|
* _.isArrayLikeObject(_.noop);
|
|
* // => false
|
|
*/
|
|
function isArrayLikeObject(value) {
|
|
return isObjectLike(value) && isArrayLike(value);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a boolean primitive or object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
|
|
* @example
|
|
*
|
|
* _.isBoolean(false);
|
|
* // => true
|
|
*
|
|
* _.isBoolean(null);
|
|
* // => false
|
|
*/
|
|
function isBoolean(value) {
|
|
return value === true || value === false ||
|
|
(isObjectLike(value) && baseGetTag(value) == boolTag);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a buffer.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.3.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
|
|
* @example
|
|
*
|
|
* _.isBuffer(new Buffer(2));
|
|
* // => true
|
|
*
|
|
* _.isBuffer(new Uint8Array(2));
|
|
* // => false
|
|
*/
|
|
var isBuffer = nativeIsBuffer || stubFalse;
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `Date` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a date object, else `false`.
|
|
* @example
|
|
*
|
|
* _.isDate(new Date);
|
|
* // => true
|
|
*
|
|
* _.isDate('Mon April 23 2012');
|
|
* // => false
|
|
*/
|
|
var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;
|
|
|
|
/**
|
|
* Checks if `value` is likely a DOM element.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
|
|
* @example
|
|
*
|
|
* _.isElement(document.body);
|
|
* // => true
|
|
*
|
|
* _.isElement('<body>');
|
|
* // => false
|
|
*/
|
|
function isElement(value) {
|
|
return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is an empty object, collection, map, or set.
|
|
*
|
|
* Objects are considered empty if they have no own enumerable string keyed
|
|
* properties.
|
|
*
|
|
* Array-like values such as `arguments` objects, arrays, buffers, strings, or
|
|
* jQuery-like collections are considered empty if they have a `length` of `0`.
|
|
* Similarly, maps and sets are considered empty if they have a `size` of `0`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is empty, else `false`.
|
|
* @example
|
|
*
|
|
* _.isEmpty(null);
|
|
* // => true
|
|
*
|
|
* _.isEmpty(true);
|
|
* // => true
|
|
*
|
|
* _.isEmpty(1);
|
|
* // => true
|
|
*
|
|
* _.isEmpty([1, 2, 3]);
|
|
* // => false
|
|
*
|
|
* _.isEmpty({ 'a': 1 });
|
|
* // => false
|
|
*/
|
|
function isEmpty(value) {
|
|
if (value == null) {
|
|
return true;
|
|
}
|
|
if (isArrayLike(value) &&
|
|
(isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
|
|
isBuffer(value) || isTypedArray(value) || isArguments(value))) {
|
|
return !value.length;
|
|
}
|
|
var tag = getTag(value);
|
|
if (tag == mapTag || tag == setTag) {
|
|
return !value.size;
|
|
}
|
|
if (isPrototype(value)) {
|
|
return !baseKeys(value).length;
|
|
}
|
|
for (var key in value) {
|
|
if (hasOwnProperty.call(value, key)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Performs a deep comparison between two values to determine if they are
|
|
* equivalent.
|
|
*
|
|
* **Note:** This method supports comparing arrays, array buffers, booleans,
|
|
* date objects, error objects, maps, numbers, `Object` objects, regexes,
|
|
* sets, strings, symbols, and typed arrays. `Object` objects are compared
|
|
* by their own, not inherited, enumerable properties. Functions and DOM
|
|
* nodes are compared by strict equality, i.e. `===`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1 };
|
|
* var other = { 'a': 1 };
|
|
*
|
|
* _.isEqual(object, other);
|
|
* // => true
|
|
*
|
|
* object === other;
|
|
* // => false
|
|
*/
|
|
function isEqual(value, other) {
|
|
return baseIsEqual(value, other);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.isEqual` except that it accepts `customizer` which
|
|
* is invoked to compare values. If `customizer` returns `undefined`, comparisons
|
|
* are handled by the method instead. The `customizer` is invoked with up to
|
|
* six arguments: (objValue, othValue [, index|key, object, other, stack]).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @param {Function} [customizer] The function to customize comparisons.
|
|
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
|
|
* @example
|
|
*
|
|
* function isGreeting(value) {
|
|
* return /^h(?:i|ello)$/.test(value);
|
|
* }
|
|
*
|
|
* function customizer(objValue, othValue) {
|
|
* if (isGreeting(objValue) && isGreeting(othValue)) {
|
|
* return true;
|
|
* }
|
|
* }
|
|
*
|
|
* var array = ['hello', 'goodbye'];
|
|
* var other = ['hi', 'goodbye'];
|
|
*
|
|
* _.isEqualWith(array, other, customizer);
|
|
* // => true
|
|
*/
|
|
function isEqualWith(value, other, customizer) {
|
|
customizer = typeof customizer == 'function' ? customizer : undefined;
|
|
var result = customizer ? customizer(value, other) : undefined;
|
|
return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
|
|
* `SyntaxError`, `TypeError`, or `URIError` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an error object, else `false`.
|
|
* @example
|
|
*
|
|
* _.isError(new Error);
|
|
* // => true
|
|
*
|
|
* _.isError(Error);
|
|
* // => false
|
|
*/
|
|
function isError(value) {
|
|
if (!isObjectLike(value)) {
|
|
return false;
|
|
}
|
|
var tag = baseGetTag(value);
|
|
return tag == errorTag || tag == domExcTag ||
|
|
(typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a finite primitive number.
|
|
*
|
|
* **Note:** This method is based on
|
|
* [`Number.isFinite`](https://mdn.io/Number/isFinite).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
|
|
* @example
|
|
*
|
|
* _.isFinite(3);
|
|
* // => true
|
|
*
|
|
* _.isFinite(Number.MIN_VALUE);
|
|
* // => true
|
|
*
|
|
* _.isFinite(Infinity);
|
|
* // => false
|
|
*
|
|
* _.isFinite('3');
|
|
* // => false
|
|
*/
|
|
function isFinite(value) {
|
|
return typeof value == 'number' && nativeIsFinite(value);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `Function` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a function, else `false`.
|
|
* @example
|
|
*
|
|
* _.isFunction(_);
|
|
* // => true
|
|
*
|
|
* _.isFunction(/abc/);
|
|
* // => false
|
|
*/
|
|
function isFunction(value) {
|
|
if (!isObject(value)) {
|
|
return false;
|
|
}
|
|
// The use of `Object#toString` avoids issues with the `typeof` operator
|
|
// in Safari 9 which returns 'object' for typed arrays and other constructors.
|
|
var tag = baseGetTag(value);
|
|
return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is an integer.
|
|
*
|
|
* **Note:** This method is based on
|
|
* [`Number.isInteger`](https://mdn.io/Number/isInteger).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an integer, else `false`.
|
|
* @example
|
|
*
|
|
* _.isInteger(3);
|
|
* // => true
|
|
*
|
|
* _.isInteger(Number.MIN_VALUE);
|
|
* // => false
|
|
*
|
|
* _.isInteger(Infinity);
|
|
* // => false
|
|
*
|
|
* _.isInteger('3');
|
|
* // => false
|
|
*/
|
|
function isInteger(value) {
|
|
return typeof value == 'number' && value == toInteger(value);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a valid array-like length.
|
|
*
|
|
* **Note:** This method is loosely based on
|
|
* [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
|
|
* @example
|
|
*
|
|
* _.isLength(3);
|
|
* // => true
|
|
*
|
|
* _.isLength(Number.MIN_VALUE);
|
|
* // => false
|
|
*
|
|
* _.isLength(Infinity);
|
|
* // => false
|
|
*
|
|
* _.isLength('3');
|
|
* // => false
|
|
*/
|
|
function isLength(value) {
|
|
return typeof value == 'number' &&
|
|
value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is the
|
|
* [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
|
|
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
|
|
* @example
|
|
*
|
|
* _.isObject({});
|
|
* // => true
|
|
*
|
|
* _.isObject([1, 2, 3]);
|
|
* // => true
|
|
*
|
|
* _.isObject(_.noop);
|
|
* // => true
|
|
*
|
|
* _.isObject(null);
|
|
* // => false
|
|
*/
|
|
function isObject(value) {
|
|
var type = typeof value;
|
|
return value != null && (type == 'object' || type == 'function');
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is object-like. A value is object-like if it's not `null`
|
|
* and has a `typeof` result of "object".
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
|
|
* @example
|
|
*
|
|
* _.isObjectLike({});
|
|
* // => true
|
|
*
|
|
* _.isObjectLike([1, 2, 3]);
|
|
* // => true
|
|
*
|
|
* _.isObjectLike(_.noop);
|
|
* // => false
|
|
*
|
|
* _.isObjectLike(null);
|
|
* // => false
|
|
*/
|
|
function isObjectLike(value) {
|
|
return value != null && typeof value == 'object';
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `Map` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.3.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a map, else `false`.
|
|
* @example
|
|
*
|
|
* _.isMap(new Map);
|
|
* // => true
|
|
*
|
|
* _.isMap(new WeakMap);
|
|
* // => false
|
|
*/
|
|
var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;
|
|
|
|
/**
|
|
* Performs a partial deep comparison between `object` and `source` to
|
|
* determine if `object` contains equivalent property values.
|
|
*
|
|
* **Note:** This method is equivalent to `_.matches` when `source` is
|
|
* partially applied.
|
|
*
|
|
* Partial comparisons will match empty array and empty object `source`
|
|
* values against any array or object value, respectively. See `_.isEqual`
|
|
* for a list of supported value comparisons.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Lang
|
|
* @param {Object} object The object to inspect.
|
|
* @param {Object} source The object of property values to match.
|
|
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': 2 };
|
|
*
|
|
* _.isMatch(object, { 'b': 2 });
|
|
* // => true
|
|
*
|
|
* _.isMatch(object, { 'b': 1 });
|
|
* // => false
|
|
*/
|
|
function isMatch(object, source) {
|
|
return object === source || baseIsMatch(object, source, getMatchData(source));
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.isMatch` except that it accepts `customizer` which
|
|
* is invoked to compare values. If `customizer` returns `undefined`, comparisons
|
|
* are handled by the method instead. The `customizer` is invoked with five
|
|
* arguments: (objValue, srcValue, index|key, object, source).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {Object} object The object to inspect.
|
|
* @param {Object} source The object of property values to match.
|
|
* @param {Function} [customizer] The function to customize comparisons.
|
|
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
|
|
* @example
|
|
*
|
|
* function isGreeting(value) {
|
|
* return /^h(?:i|ello)$/.test(value);
|
|
* }
|
|
*
|
|
* function customizer(objValue, srcValue) {
|
|
* if (isGreeting(objValue) && isGreeting(srcValue)) {
|
|
* return true;
|
|
* }
|
|
* }
|
|
*
|
|
* var object = { 'greeting': 'hello' };
|
|
* var source = { 'greeting': 'hi' };
|
|
*
|
|
* _.isMatchWith(object, source, customizer);
|
|
* // => true
|
|
*/
|
|
function isMatchWith(object, source, customizer) {
|
|
customizer = typeof customizer == 'function' ? customizer : undefined;
|
|
return baseIsMatch(object, source, getMatchData(source), customizer);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is `NaN`.
|
|
*
|
|
* **Note:** This method is based on
|
|
* [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
|
|
* global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
|
|
* `undefined` and other non-number values.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
|
|
* @example
|
|
*
|
|
* _.isNaN(NaN);
|
|
* // => true
|
|
*
|
|
* _.isNaN(new Number(NaN));
|
|
* // => true
|
|
*
|
|
* isNaN(undefined);
|
|
* // => true
|
|
*
|
|
* _.isNaN(undefined);
|
|
* // => false
|
|
*/
|
|
function isNaN(value) {
|
|
// An `NaN` primitive is the only value that is not equal to itself.
|
|
// Perform the `toStringTag` check first to avoid errors with some
|
|
// ActiveX objects in IE.
|
|
return isNumber(value) && value != +value;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a pristine native function.
|
|
*
|
|
* **Note:** This method can't reliably detect native functions in the presence
|
|
* of the core-js package because core-js circumvents this kind of detection.
|
|
* Despite multiple requests, the core-js maintainer has made it clear: any
|
|
* attempt to fix the detection will be obstructed. As a result, we're left
|
|
* with little choice but to throw an error. Unfortunately, this also affects
|
|
* packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
|
|
* which rely on core-js.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a native function,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.isNative(Array.prototype.push);
|
|
* // => true
|
|
*
|
|
* _.isNative(_);
|
|
* // => false
|
|
*/
|
|
function isNative(value) {
|
|
if (isMaskable(value)) {
|
|
throw new Error(CORE_ERROR_TEXT);
|
|
}
|
|
return baseIsNative(value);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is `null`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is `null`, else `false`.
|
|
* @example
|
|
*
|
|
* _.isNull(null);
|
|
* // => true
|
|
*
|
|
* _.isNull(void 0);
|
|
* // => false
|
|
*/
|
|
function isNull(value) {
|
|
return value === null;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is `null` or `undefined`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is nullish, else `false`.
|
|
* @example
|
|
*
|
|
* _.isNil(null);
|
|
* // => true
|
|
*
|
|
* _.isNil(void 0);
|
|
* // => true
|
|
*
|
|
* _.isNil(NaN);
|
|
* // => false
|
|
*/
|
|
function isNil(value) {
|
|
return value == null;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `Number` primitive or object.
|
|
*
|
|
* **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
|
|
* classified as numbers, use the `_.isFinite` method.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a number, else `false`.
|
|
* @example
|
|
*
|
|
* _.isNumber(3);
|
|
* // => true
|
|
*
|
|
* _.isNumber(Number.MIN_VALUE);
|
|
* // => true
|
|
*
|
|
* _.isNumber(Infinity);
|
|
* // => true
|
|
*
|
|
* _.isNumber('3');
|
|
* // => false
|
|
*/
|
|
function isNumber(value) {
|
|
return typeof value == 'number' ||
|
|
(isObjectLike(value) && baseGetTag(value) == numberTag);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a plain object, that is, an object created by the
|
|
* `Object` constructor or one with a `[[Prototype]]` of `null`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.8.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* }
|
|
*
|
|
* _.isPlainObject(new Foo);
|
|
* // => false
|
|
*
|
|
* _.isPlainObject([1, 2, 3]);
|
|
* // => false
|
|
*
|
|
* _.isPlainObject({ 'x': 0, 'y': 0 });
|
|
* // => true
|
|
*
|
|
* _.isPlainObject(Object.create(null));
|
|
* // => true
|
|
*/
|
|
function isPlainObject(value) {
|
|
if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
|
|
return false;
|
|
}
|
|
var proto = getPrototype(value);
|
|
if (proto === null) {
|
|
return true;
|
|
}
|
|
var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
|
|
return typeof Ctor == 'function' && Ctor instanceof Ctor &&
|
|
funcToString.call(Ctor) == objectCtorString;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `RegExp` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
|
|
* @example
|
|
*
|
|
* _.isRegExp(/abc/);
|
|
* // => true
|
|
*
|
|
* _.isRegExp('/abc/');
|
|
* // => false
|
|
*/
|
|
var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;
|
|
|
|
/**
|
|
* Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
|
|
* double precision number which isn't the result of a rounded unsafe integer.
|
|
*
|
|
* **Note:** This method is based on
|
|
* [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
|
|
* @example
|
|
*
|
|
* _.isSafeInteger(3);
|
|
* // => true
|
|
*
|
|
* _.isSafeInteger(Number.MIN_VALUE);
|
|
* // => false
|
|
*
|
|
* _.isSafeInteger(Infinity);
|
|
* // => false
|
|
*
|
|
* _.isSafeInteger('3');
|
|
* // => false
|
|
*/
|
|
function isSafeInteger(value) {
|
|
return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `Set` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.3.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a set, else `false`.
|
|
* @example
|
|
*
|
|
* _.isSet(new Set);
|
|
* // => true
|
|
*
|
|
* _.isSet(new WeakSet);
|
|
* // => false
|
|
*/
|
|
var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `String` primitive or object.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a string, else `false`.
|
|
* @example
|
|
*
|
|
* _.isString('abc');
|
|
* // => true
|
|
*
|
|
* _.isString(1);
|
|
* // => false
|
|
*/
|
|
function isString(value) {
|
|
return typeof value == 'string' ||
|
|
(!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `Symbol` primitive or object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
|
|
* @example
|
|
*
|
|
* _.isSymbol(Symbol.iterator);
|
|
* // => true
|
|
*
|
|
* _.isSymbol('abc');
|
|
* // => false
|
|
*/
|
|
function isSymbol(value) {
|
|
return typeof value == 'symbol' ||
|
|
(isObjectLike(value) && baseGetTag(value) == symbolTag);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a typed array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
|
|
* @example
|
|
*
|
|
* _.isTypedArray(new Uint8Array);
|
|
* // => true
|
|
*
|
|
* _.isTypedArray([]);
|
|
* // => false
|
|
*/
|
|
var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;
|
|
|
|
/**
|
|
* Checks if `value` is `undefined`.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
|
|
* @example
|
|
*
|
|
* _.isUndefined(void 0);
|
|
* // => true
|
|
*
|
|
* _.isUndefined(null);
|
|
* // => false
|
|
*/
|
|
function isUndefined(value) {
|
|
return value === undefined;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `WeakMap` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.3.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
|
|
* @example
|
|
*
|
|
* _.isWeakMap(new WeakMap);
|
|
* // => true
|
|
*
|
|
* _.isWeakMap(new Map);
|
|
* // => false
|
|
*/
|
|
function isWeakMap(value) {
|
|
return isObjectLike(value) && getTag(value) == weakMapTag;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `WeakSet` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.3.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
|
|
* @example
|
|
*
|
|
* _.isWeakSet(new WeakSet);
|
|
* // => true
|
|
*
|
|
* _.isWeakSet(new Set);
|
|
* // => false
|
|
*/
|
|
function isWeakSet(value) {
|
|
return isObjectLike(value) && baseGetTag(value) == weakSetTag;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is less than `other`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.9.0
|
|
* @category Lang
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if `value` is less than `other`,
|
|
* else `false`.
|
|
* @see _.gt
|
|
* @example
|
|
*
|
|
* _.lt(1, 3);
|
|
* // => true
|
|
*
|
|
* _.lt(3, 3);
|
|
* // => false
|
|
*
|
|
* _.lt(3, 1);
|
|
* // => false
|
|
*/
|
|
var lt = createRelationalOperation(baseLt);
|
|
|
|
/**
|
|
* Checks if `value` is less than or equal to `other`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.9.0
|
|
* @category Lang
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if `value` is less than or equal to
|
|
* `other`, else `false`.
|
|
* @see _.gte
|
|
* @example
|
|
*
|
|
* _.lte(1, 3);
|
|
* // => true
|
|
*
|
|
* _.lte(3, 3);
|
|
* // => true
|
|
*
|
|
* _.lte(3, 1);
|
|
* // => false
|
|
*/
|
|
var lte = createRelationalOperation(function(value, other) {
|
|
return value <= other;
|
|
});
|
|
|
|
/**
|
|
* Converts `value` to an array.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Lang
|
|
* @param {*} value The value to convert.
|
|
* @returns {Array} Returns the converted array.
|
|
* @example
|
|
*
|
|
* _.toArray({ 'a': 1, 'b': 2 });
|
|
* // => [1, 2]
|
|
*
|
|
* _.toArray('abc');
|
|
* // => ['a', 'b', 'c']
|
|
*
|
|
* _.toArray(1);
|
|
* // => []
|
|
*
|
|
* _.toArray(null);
|
|
* // => []
|
|
*/
|
|
function toArray(value) {
|
|
if (!value) {
|
|
return [];
|
|
}
|
|
if (isArrayLike(value)) {
|
|
return isString(value) ? stringToArray(value) : copyArray(value);
|
|
}
|
|
if (symIterator && value[symIterator]) {
|
|
return iteratorToArray(value[symIterator]());
|
|
}
|
|
var tag = getTag(value),
|
|
func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);
|
|
|
|
return func(value);
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to a finite number.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.12.0
|
|
* @category Lang
|
|
* @param {*} value The value to convert.
|
|
* @returns {number} Returns the converted number.
|
|
* @example
|
|
*
|
|
* _.toFinite(3.2);
|
|
* // => 3.2
|
|
*
|
|
* _.toFinite(Number.MIN_VALUE);
|
|
* // => 5e-324
|
|
*
|
|
* _.toFinite(Infinity);
|
|
* // => 1.7976931348623157e+308
|
|
*
|
|
* _.toFinite('3.2');
|
|
* // => 3.2
|
|
*/
|
|
function toFinite(value) {
|
|
if (!value) {
|
|
return value === 0 ? value : 0;
|
|
}
|
|
value = toNumber(value);
|
|
if (value === INFINITY || value === -INFINITY) {
|
|
var sign = (value < 0 ? -1 : 1);
|
|
return sign * MAX_INTEGER;
|
|
}
|
|
return value === value ? value : 0;
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to an integer.
|
|
*
|
|
* **Note:** This method is loosely based on
|
|
* [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to convert.
|
|
* @returns {number} Returns the converted integer.
|
|
* @example
|
|
*
|
|
* _.toInteger(3.2);
|
|
* // => 3
|
|
*
|
|
* _.toInteger(Number.MIN_VALUE);
|
|
* // => 0
|
|
*
|
|
* _.toInteger(Infinity);
|
|
* // => 1.7976931348623157e+308
|
|
*
|
|
* _.toInteger('3.2');
|
|
* // => 3
|
|
*/
|
|
function toInteger(value) {
|
|
var result = toFinite(value),
|
|
remainder = result % 1;
|
|
|
|
return result === result ? (remainder ? result - remainder : result) : 0;
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to an integer suitable for use as the length of an
|
|
* array-like object.
|
|
*
|
|
* **Note:** This method is based on
|
|
* [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to convert.
|
|
* @returns {number} Returns the converted integer.
|
|
* @example
|
|
*
|
|
* _.toLength(3.2);
|
|
* // => 3
|
|
*
|
|
* _.toLength(Number.MIN_VALUE);
|
|
* // => 0
|
|
*
|
|
* _.toLength(Infinity);
|
|
* // => 4294967295
|
|
*
|
|
* _.toLength('3.2');
|
|
* // => 3
|
|
*/
|
|
function toLength(value) {
|
|
return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to a number.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to process.
|
|
* @returns {number} Returns the number.
|
|
* @example
|
|
*
|
|
* _.toNumber(3.2);
|
|
* // => 3.2
|
|
*
|
|
* _.toNumber(Number.MIN_VALUE);
|
|
* // => 5e-324
|
|
*
|
|
* _.toNumber(Infinity);
|
|
* // => Infinity
|
|
*
|
|
* _.toNumber('3.2');
|
|
* // => 3.2
|
|
*/
|
|
function toNumber(value) {
|
|
if (typeof value == 'number') {
|
|
return value;
|
|
}
|
|
if (isSymbol(value)) {
|
|
return NAN;
|
|
}
|
|
if (isObject(value)) {
|
|
var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
|
|
value = isObject(other) ? (other + '') : other;
|
|
}
|
|
if (typeof value != 'string') {
|
|
return value === 0 ? value : +value;
|
|
}
|
|
value = value.replace(reTrim, '');
|
|
var isBinary = reIsBinary.test(value);
|
|
return (isBinary || reIsOctal.test(value))
|
|
? freeParseInt(value.slice(2), isBinary ? 2 : 8)
|
|
: (reIsBadHex.test(value) ? NAN : +value);
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to a plain object flattening inherited enumerable string
|
|
* keyed properties of `value` to own properties of the plain object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to convert.
|
|
* @returns {Object} Returns the converted plain object.
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.assign({ 'a': 1 }, new Foo);
|
|
* // => { 'a': 1, 'b': 2 }
|
|
*
|
|
* _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
|
|
* // => { 'a': 1, 'b': 2, 'c': 3 }
|
|
*/
|
|
function toPlainObject(value) {
|
|
return copyObject(value, keysIn(value));
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to a safe integer. A safe integer can be compared and
|
|
* represented correctly.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to convert.
|
|
* @returns {number} Returns the converted integer.
|
|
* @example
|
|
*
|
|
* _.toSafeInteger(3.2);
|
|
* // => 3
|
|
*
|
|
* _.toSafeInteger(Number.MIN_VALUE);
|
|
* // => 0
|
|
*
|
|
* _.toSafeInteger(Infinity);
|
|
* // => 9007199254740991
|
|
*
|
|
* _.toSafeInteger('3.2');
|
|
* // => 3
|
|
*/
|
|
function toSafeInteger(value) {
|
|
return value
|
|
? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
|
|
: (value === 0 ? value : 0);
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to a string. An empty string is returned for `null`
|
|
* and `undefined` values. The sign of `-0` is preserved.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to convert.
|
|
* @returns {string} Returns the converted string.
|
|
* @example
|
|
*
|
|
* _.toString(null);
|
|
* // => ''
|
|
*
|
|
* _.toString(-0);
|
|
* // => '-0'
|
|
*
|
|
* _.toString([1, 2, 3]);
|
|
* // => '1,2,3'
|
|
*/
|
|
function toString(value) {
|
|
return value == null ? '' : baseToString(value);
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Assigns own enumerable string keyed properties of source objects to the
|
|
* destination object. Source objects are applied from left to right.
|
|
* Subsequent sources overwrite property assignments of previous sources.
|
|
*
|
|
* **Note:** This method mutates `object` and is loosely based on
|
|
* [`Object.assign`](https://mdn.io/Object/assign).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.10.0
|
|
* @category Object
|
|
* @param {Object} object The destination object.
|
|
* @param {...Object} [sources] The source objects.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.assignIn
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* }
|
|
*
|
|
* function Bar() {
|
|
* this.c = 3;
|
|
* }
|
|
*
|
|
* Foo.prototype.b = 2;
|
|
* Bar.prototype.d = 4;
|
|
*
|
|
* _.assign({ 'a': 0 }, new Foo, new Bar);
|
|
* // => { 'a': 1, 'c': 3 }
|
|
*/
|
|
var assign = createAssigner(function(object, source) {
|
|
if (isPrototype(source) || isArrayLike(source)) {
|
|
copyObject(source, keys(source), object);
|
|
return;
|
|
}
|
|
for (var key in source) {
|
|
if (hasOwnProperty.call(source, key)) {
|
|
assignValue(object, key, source[key]);
|
|
}
|
|
}
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.assign` except that it iterates over own and
|
|
* inherited source properties.
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @alias extend
|
|
* @category Object
|
|
* @param {Object} object The destination object.
|
|
* @param {...Object} [sources] The source objects.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.assign
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* }
|
|
*
|
|
* function Bar() {
|
|
* this.c = 3;
|
|
* }
|
|
*
|
|
* Foo.prototype.b = 2;
|
|
* Bar.prototype.d = 4;
|
|
*
|
|
* _.assignIn({ 'a': 0 }, new Foo, new Bar);
|
|
* // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
|
|
*/
|
|
var assignIn = createAssigner(function(object, source) {
|
|
copyObject(source, keysIn(source), object);
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.assignIn` except that it accepts `customizer`
|
|
* which is invoked to produce the assigned values. If `customizer` returns
|
|
* `undefined`, assignment is handled by the method instead. The `customizer`
|
|
* is invoked with five arguments: (objValue, srcValue, key, object, source).
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @alias extendWith
|
|
* @category Object
|
|
* @param {Object} object The destination object.
|
|
* @param {...Object} sources The source objects.
|
|
* @param {Function} [customizer] The function to customize assigned values.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.assignWith
|
|
* @example
|
|
*
|
|
* function customizer(objValue, srcValue) {
|
|
* return _.isUndefined(objValue) ? srcValue : objValue;
|
|
* }
|
|
*
|
|
* var defaults = _.partialRight(_.assignInWith, customizer);
|
|
*
|
|
* defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
|
|
* // => { 'a': 1, 'b': 2 }
|
|
*/
|
|
var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
|
|
copyObject(source, keysIn(source), object, customizer);
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.assign` except that it accepts `customizer`
|
|
* which is invoked to produce the assigned values. If `customizer` returns
|
|
* `undefined`, assignment is handled by the method instead. The `customizer`
|
|
* is invoked with five arguments: (objValue, srcValue, key, object, source).
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The destination object.
|
|
* @param {...Object} sources The source objects.
|
|
* @param {Function} [customizer] The function to customize assigned values.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.assignInWith
|
|
* @example
|
|
*
|
|
* function customizer(objValue, srcValue) {
|
|
* return _.isUndefined(objValue) ? srcValue : objValue;
|
|
* }
|
|
*
|
|
* var defaults = _.partialRight(_.assignWith, customizer);
|
|
*
|
|
* defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
|
|
* // => { 'a': 1, 'b': 2 }
|
|
*/
|
|
var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
|
|
copyObject(source, keys(source), object, customizer);
|
|
});
|
|
|
|
/**
|
|
* Creates an array of values corresponding to `paths` of `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {...(string|string[])} [paths] The property paths to pick.
|
|
* @returns {Array} Returns the picked values.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
|
|
*
|
|
* _.at(object, ['a[0].b.c', 'a[1]']);
|
|
* // => [3, 4]
|
|
*/
|
|
var at = flatRest(baseAt);
|
|
|
|
/**
|
|
* Creates an object that inherits from the `prototype` object. If a
|
|
* `properties` object is given, its own enumerable string keyed properties
|
|
* are assigned to the created object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.3.0
|
|
* @category Object
|
|
* @param {Object} prototype The object to inherit from.
|
|
* @param {Object} [properties] The properties to assign to the object.
|
|
* @returns {Object} Returns the new object.
|
|
* @example
|
|
*
|
|
* function Shape() {
|
|
* this.x = 0;
|
|
* this.y = 0;
|
|
* }
|
|
*
|
|
* function Circle() {
|
|
* Shape.call(this);
|
|
* }
|
|
*
|
|
* Circle.prototype = _.create(Shape.prototype, {
|
|
* 'constructor': Circle
|
|
* });
|
|
*
|
|
* var circle = new Circle;
|
|
* circle instanceof Circle;
|
|
* // => true
|
|
*
|
|
* circle instanceof Shape;
|
|
* // => true
|
|
*/
|
|
function create(prototype, properties) {
|
|
var result = baseCreate(prototype);
|
|
return properties == null ? result : baseAssign(result, properties);
|
|
}
|
|
|
|
/**
|
|
* Assigns own and inherited enumerable string keyed properties of source
|
|
* objects to the destination object for all destination properties that
|
|
* resolve to `undefined`. Source objects are applied from left to right.
|
|
* Once a property is set, additional values of the same property are ignored.
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The destination object.
|
|
* @param {...Object} [sources] The source objects.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.defaultsDeep
|
|
* @example
|
|
*
|
|
* _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
|
|
* // => { 'a': 1, 'b': 2 }
|
|
*/
|
|
var defaults = baseRest(function(object, sources) {
|
|
object = Object(object);
|
|
|
|
var index = -1;
|
|
var length = sources.length;
|
|
var guard = length > 2 ? sources[2] : undefined;
|
|
|
|
if (guard && isIterateeCall(sources[0], sources[1], guard)) {
|
|
length = 1;
|
|
}
|
|
|
|
while (++index < length) {
|
|
var source = sources[index];
|
|
var props = keysIn(source);
|
|
var propsIndex = -1;
|
|
var propsLength = props.length;
|
|
|
|
while (++propsIndex < propsLength) {
|
|
var key = props[propsIndex];
|
|
var value = object[key];
|
|
|
|
if (value === undefined ||
|
|
(eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {
|
|
object[key] = source[key];
|
|
}
|
|
}
|
|
}
|
|
|
|
return object;
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.defaults` except that it recursively assigns
|
|
* default properties.
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.10.0
|
|
* @category Object
|
|
* @param {Object} object The destination object.
|
|
* @param {...Object} [sources] The source objects.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.defaults
|
|
* @example
|
|
*
|
|
* _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
|
|
* // => { 'a': { 'b': 2, 'c': 3 } }
|
|
*/
|
|
var defaultsDeep = baseRest(function(args) {
|
|
args.push(undefined, customDefaultsMerge);
|
|
return apply(mergeWith, undefined, args);
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.find` except that it returns the key of the first
|
|
* element `predicate` returns truthy for instead of the element itself.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.1.0
|
|
* @category Object
|
|
* @param {Object} object The object to inspect.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {string|undefined} Returns the key of the matched element,
|
|
* else `undefined`.
|
|
* @example
|
|
*
|
|
* var users = {
|
|
* 'barney': { 'age': 36, 'active': true },
|
|
* 'fred': { 'age': 40, 'active': false },
|
|
* 'pebbles': { 'age': 1, 'active': true }
|
|
* };
|
|
*
|
|
* _.findKey(users, function(o) { return o.age < 40; });
|
|
* // => 'barney' (iteration order is not guaranteed)
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.findKey(users, { 'age': 1, 'active': true });
|
|
* // => 'pebbles'
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.findKey(users, ['active', false]);
|
|
* // => 'fred'
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.findKey(users, 'active');
|
|
* // => 'barney'
|
|
*/
|
|
function findKey(object, predicate) {
|
|
return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.findKey` except that it iterates over elements of
|
|
* a collection in the opposite order.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to inspect.
|
|
* @param {Function} [predicate=_.identity] The function invoked per iteration.
|
|
* @returns {string|undefined} Returns the key of the matched element,
|
|
* else `undefined`.
|
|
* @example
|
|
*
|
|
* var users = {
|
|
* 'barney': { 'age': 36, 'active': true },
|
|
* 'fred': { 'age': 40, 'active': false },
|
|
* 'pebbles': { 'age': 1, 'active': true }
|
|
* };
|
|
*
|
|
* _.findLastKey(users, function(o) { return o.age < 40; });
|
|
* // => returns 'pebbles' assuming `_.findKey` returns 'barney'
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.findLastKey(users, { 'age': 36, 'active': true });
|
|
* // => 'barney'
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.findLastKey(users, ['active', false]);
|
|
* // => 'fred'
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.findLastKey(users, 'active');
|
|
* // => 'pebbles'
|
|
*/
|
|
function findLastKey(object, predicate) {
|
|
return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
|
|
}
|
|
|
|
/**
|
|
* Iterates over own and inherited enumerable string keyed properties of an
|
|
* object and invokes `iteratee` for each property. The iteratee is invoked
|
|
* with three arguments: (value, key, object). Iteratee functions may exit
|
|
* iteration early by explicitly returning `false`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.3.0
|
|
* @category Object
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.forInRight
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.forIn(new Foo, function(value, key) {
|
|
* console.log(key);
|
|
* });
|
|
* // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
|
|
*/
|
|
function forIn(object, iteratee) {
|
|
return object == null
|
|
? object
|
|
: baseFor(object, getIteratee(iteratee, 3), keysIn);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.forIn` except that it iterates over properties of
|
|
* `object` in the opposite order.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.forIn
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.forInRight(new Foo, function(value, key) {
|
|
* console.log(key);
|
|
* });
|
|
* // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
|
|
*/
|
|
function forInRight(object, iteratee) {
|
|
return object == null
|
|
? object
|
|
: baseForRight(object, getIteratee(iteratee, 3), keysIn);
|
|
}
|
|
|
|
/**
|
|
* Iterates over own enumerable string keyed properties of an object and
|
|
* invokes `iteratee` for each property. The iteratee is invoked with three
|
|
* arguments: (value, key, object). Iteratee functions may exit iteration
|
|
* early by explicitly returning `false`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.3.0
|
|
* @category Object
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.forOwnRight
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.forOwn(new Foo, function(value, key) {
|
|
* console.log(key);
|
|
* });
|
|
* // => Logs 'a' then 'b' (iteration order is not guaranteed).
|
|
*/
|
|
function forOwn(object, iteratee) {
|
|
return object && baseForOwn(object, getIteratee(iteratee, 3));
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.forOwn` except that it iterates over properties of
|
|
* `object` in the opposite order.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Object} Returns `object`.
|
|
* @see _.forOwn
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.forOwnRight(new Foo, function(value, key) {
|
|
* console.log(key);
|
|
* });
|
|
* // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
|
|
*/
|
|
function forOwnRight(object, iteratee) {
|
|
return object && baseForOwnRight(object, getIteratee(iteratee, 3));
|
|
}
|
|
|
|
/**
|
|
* Creates an array of function property names from own enumerable properties
|
|
* of `object`.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The object to inspect.
|
|
* @returns {Array} Returns the function names.
|
|
* @see _.functionsIn
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = _.constant('a');
|
|
* this.b = _.constant('b');
|
|
* }
|
|
*
|
|
* Foo.prototype.c = _.constant('c');
|
|
*
|
|
* _.functions(new Foo);
|
|
* // => ['a', 'b']
|
|
*/
|
|
function functions(object) {
|
|
return object == null ? [] : baseFunctions(object, keys(object));
|
|
}
|
|
|
|
/**
|
|
* Creates an array of function property names from own and inherited
|
|
* enumerable properties of `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to inspect.
|
|
* @returns {Array} Returns the function names.
|
|
* @see _.functions
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = _.constant('a');
|
|
* this.b = _.constant('b');
|
|
* }
|
|
*
|
|
* Foo.prototype.c = _.constant('c');
|
|
*
|
|
* _.functionsIn(new Foo);
|
|
* // => ['a', 'b', 'c']
|
|
*/
|
|
function functionsIn(object) {
|
|
return object == null ? [] : baseFunctions(object, keysIn(object));
|
|
}
|
|
|
|
/**
|
|
* Gets the value at `path` of `object`. If the resolved value is
|
|
* `undefined`, the `defaultValue` is returned in its place.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.7.0
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path of the property to get.
|
|
* @param {*} [defaultValue] The value returned for `undefined` resolved values.
|
|
* @returns {*} Returns the resolved value.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
|
|
*
|
|
* _.get(object, 'a[0].b.c');
|
|
* // => 3
|
|
*
|
|
* _.get(object, ['a', '0', 'b', 'c']);
|
|
* // => 3
|
|
*
|
|
* _.get(object, 'a.b.c', 'default');
|
|
* // => 'default'
|
|
*/
|
|
function get(object, path, defaultValue) {
|
|
var result = object == null ? undefined : baseGet(object, path);
|
|
return result === undefined ? defaultValue : result;
|
|
}
|
|
|
|
/**
|
|
* Checks if `path` is a direct property of `object`.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path to check.
|
|
* @returns {boolean} Returns `true` if `path` exists, else `false`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': { 'b': 2 } };
|
|
* var other = _.create({ 'a': _.create({ 'b': 2 }) });
|
|
*
|
|
* _.has(object, 'a');
|
|
* // => true
|
|
*
|
|
* _.has(object, 'a.b');
|
|
* // => true
|
|
*
|
|
* _.has(object, ['a', 'b']);
|
|
* // => true
|
|
*
|
|
* _.has(other, 'a');
|
|
* // => false
|
|
*/
|
|
function has(object, path) {
|
|
return object != null && hasPath(object, path, baseHas);
|
|
}
|
|
|
|
/**
|
|
* Checks if `path` is a direct or inherited property of `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path to check.
|
|
* @returns {boolean} Returns `true` if `path` exists, else `false`.
|
|
* @example
|
|
*
|
|
* var object = _.create({ 'a': _.create({ 'b': 2 }) });
|
|
*
|
|
* _.hasIn(object, 'a');
|
|
* // => true
|
|
*
|
|
* _.hasIn(object, 'a.b');
|
|
* // => true
|
|
*
|
|
* _.hasIn(object, ['a', 'b']);
|
|
* // => true
|
|
*
|
|
* _.hasIn(object, 'b');
|
|
* // => false
|
|
*/
|
|
function hasIn(object, path) {
|
|
return object != null && hasPath(object, path, baseHasIn);
|
|
}
|
|
|
|
/**
|
|
* Creates an object composed of the inverted keys and values of `object`.
|
|
* If `object` contains duplicate values, subsequent values overwrite
|
|
* property assignments of previous values.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.7.0
|
|
* @category Object
|
|
* @param {Object} object The object to invert.
|
|
* @returns {Object} Returns the new inverted object.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': 2, 'c': 1 };
|
|
*
|
|
* _.invert(object);
|
|
* // => { '1': 'c', '2': 'b' }
|
|
*/
|
|
var invert = createInverter(function(result, value, key) {
|
|
if (value != null &&
|
|
typeof value.toString != 'function') {
|
|
value = nativeObjectToString.call(value);
|
|
}
|
|
|
|
result[value] = key;
|
|
}, constant(identity));
|
|
|
|
/**
|
|
* This method is like `_.invert` except that the inverted object is generated
|
|
* from the results of running each element of `object` thru `iteratee`. The
|
|
* corresponding inverted value of each inverted key is an array of keys
|
|
* responsible for generating the inverted value. The iteratee is invoked
|
|
* with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.1.0
|
|
* @category Object
|
|
* @param {Object} object The object to invert.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {Object} Returns the new inverted object.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': 2, 'c': 1 };
|
|
*
|
|
* _.invertBy(object);
|
|
* // => { '1': ['a', 'c'], '2': ['b'] }
|
|
*
|
|
* _.invertBy(object, function(value) {
|
|
* return 'group' + value;
|
|
* });
|
|
* // => { 'group1': ['a', 'c'], 'group2': ['b'] }
|
|
*/
|
|
var invertBy = createInverter(function(result, value, key) {
|
|
if (value != null &&
|
|
typeof value.toString != 'function') {
|
|
value = nativeObjectToString.call(value);
|
|
}
|
|
|
|
if (hasOwnProperty.call(result, value)) {
|
|
result[value].push(key);
|
|
} else {
|
|
result[value] = [key];
|
|
}
|
|
}, getIteratee);
|
|
|
|
/**
|
|
* Invokes the method at `path` of `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path of the method to invoke.
|
|
* @param {...*} [args] The arguments to invoke the method with.
|
|
* @returns {*} Returns the result of the invoked method.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
|
|
*
|
|
* _.invoke(object, 'a[0].b.c.slice', 1, 3);
|
|
* // => [2, 3]
|
|
*/
|
|
var invoke = baseRest(baseInvoke);
|
|
|
|
/**
|
|
* Creates an array of the own enumerable property names of `object`.
|
|
*
|
|
* **Note:** Non-object values are coerced to objects. See the
|
|
* [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
|
|
* for more details.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property names.
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.keys(new Foo);
|
|
* // => ['a', 'b'] (iteration order is not guaranteed)
|
|
*
|
|
* _.keys('hi');
|
|
* // => ['0', '1']
|
|
*/
|
|
function keys(object) {
|
|
return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
|
|
}
|
|
|
|
/**
|
|
* Creates an array of the own and inherited enumerable property names of `object`.
|
|
*
|
|
* **Note:** Non-object values are coerced to objects.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property names.
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.keysIn(new Foo);
|
|
* // => ['a', 'b', 'c'] (iteration order is not guaranteed)
|
|
*/
|
|
function keysIn(object) {
|
|
return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
|
|
}
|
|
|
|
/**
|
|
* The opposite of `_.mapValues`; this method creates an object with the
|
|
* same values as `object` and keys generated by running each own enumerable
|
|
* string keyed property of `object` thru `iteratee`. The iteratee is invoked
|
|
* with three arguments: (value, key, object).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.8.0
|
|
* @category Object
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Object} Returns the new mapped object.
|
|
* @see _.mapValues
|
|
* @example
|
|
*
|
|
* _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
|
|
* return key + value;
|
|
* });
|
|
* // => { 'a1': 1, 'b2': 2 }
|
|
*/
|
|
function mapKeys(object, iteratee) {
|
|
var result = {};
|
|
iteratee = getIteratee(iteratee, 3);
|
|
|
|
baseForOwn(object, function(value, key, object) {
|
|
baseAssignValue(result, iteratee(value, key, object), value);
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates an object with the same keys as `object` and values generated
|
|
* by running each own enumerable string keyed property of `object` thru
|
|
* `iteratee`. The iteratee is invoked with three arguments:
|
|
* (value, key, object).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.4.0
|
|
* @category Object
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Object} Returns the new mapped object.
|
|
* @see _.mapKeys
|
|
* @example
|
|
*
|
|
* var users = {
|
|
* 'fred': { 'user': 'fred', 'age': 40 },
|
|
* 'pebbles': { 'user': 'pebbles', 'age': 1 }
|
|
* };
|
|
*
|
|
* _.mapValues(users, function(o) { return o.age; });
|
|
* // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.mapValues(users, 'age');
|
|
* // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
|
|
*/
|
|
function mapValues(object, iteratee) {
|
|
var result = {};
|
|
iteratee = getIteratee(iteratee, 3);
|
|
|
|
baseForOwn(object, function(value, key, object) {
|
|
baseAssignValue(result, key, iteratee(value, key, object));
|
|
});
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.assign` except that it recursively merges own and
|
|
* inherited enumerable string keyed properties of source objects into the
|
|
* destination object. Source properties that resolve to `undefined` are
|
|
* skipped if a destination value exists. Array and plain object properties
|
|
* are merged recursively. Other objects and value types are overridden by
|
|
* assignment. Source objects are applied from left to right. Subsequent
|
|
* sources overwrite property assignments of previous sources.
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.5.0
|
|
* @category Object
|
|
* @param {Object} object The destination object.
|
|
* @param {...Object} [sources] The source objects.
|
|
* @returns {Object} Returns `object`.
|
|
* @example
|
|
*
|
|
* var object = {
|
|
* 'a': [{ 'b': 2 }, { 'd': 4 }]
|
|
* };
|
|
*
|
|
* var other = {
|
|
* 'a': [{ 'c': 3 }, { 'e': 5 }]
|
|
* };
|
|
*
|
|
* _.merge(object, other);
|
|
* // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
|
|
*/
|
|
var merge = createAssigner(function(object, source, srcIndex) {
|
|
baseMerge(object, source, srcIndex);
|
|
});
|
|
|
|
/**
|
|
* This method is like `_.merge` except that it accepts `customizer` which
|
|
* is invoked to produce the merged values of the destination and source
|
|
* properties. If `customizer` returns `undefined`, merging is handled by the
|
|
* method instead. The `customizer` is invoked with six arguments:
|
|
* (objValue, srcValue, key, object, source, stack).
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The destination object.
|
|
* @param {...Object} sources The source objects.
|
|
* @param {Function} customizer The function to customize assigned values.
|
|
* @returns {Object} Returns `object`.
|
|
* @example
|
|
*
|
|
* function customizer(objValue, srcValue) {
|
|
* if (_.isArray(objValue)) {
|
|
* return objValue.concat(srcValue);
|
|
* }
|
|
* }
|
|
*
|
|
* var object = { 'a': [1], 'b': [2] };
|
|
* var other = { 'a': [3], 'b': [4] };
|
|
*
|
|
* _.mergeWith(object, other, customizer);
|
|
* // => { 'a': [1, 3], 'b': [2, 4] }
|
|
*/
|
|
var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
|
|
baseMerge(object, source, srcIndex, customizer);
|
|
});
|
|
|
|
/**
|
|
* The opposite of `_.pick`; this method creates an object composed of the
|
|
* own and inherited enumerable property paths of `object` that are not omitted.
|
|
*
|
|
* **Note:** This method is considerably slower than `_.pick`.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The source object.
|
|
* @param {...(string|string[])} [paths] The property paths to omit.
|
|
* @returns {Object} Returns the new object.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': '2', 'c': 3 };
|
|
*
|
|
* _.omit(object, ['a', 'c']);
|
|
* // => { 'b': '2' }
|
|
*/
|
|
var omit = flatRest(function(object, paths) {
|
|
var result = {};
|
|
if (object == null) {
|
|
return result;
|
|
}
|
|
var isDeep = false;
|
|
paths = arrayMap(paths, function(path) {
|
|
path = castPath(path, object);
|
|
isDeep || (isDeep = path.length > 1);
|
|
return path;
|
|
});
|
|
copyObject(object, getAllKeysIn(object), result);
|
|
if (isDeep) {
|
|
result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
|
|
}
|
|
var length = paths.length;
|
|
while (length--) {
|
|
baseUnset(result, paths[length]);
|
|
}
|
|
return result;
|
|
});
|
|
|
|
/**
|
|
* The opposite of `_.pickBy`; this method creates an object composed of
|
|
* the own and inherited enumerable string keyed properties of `object` that
|
|
* `predicate` doesn't return truthy for. The predicate is invoked with two
|
|
* arguments: (value, key).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The source object.
|
|
* @param {Function} [predicate=_.identity] The function invoked per property.
|
|
* @returns {Object} Returns the new object.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': '2', 'c': 3 };
|
|
*
|
|
* _.omitBy(object, _.isNumber);
|
|
* // => { 'b': '2' }
|
|
*/
|
|
function omitBy(object, predicate) {
|
|
return pickBy(object, negate(getIteratee(predicate)));
|
|
}
|
|
|
|
/**
|
|
* Creates an object composed of the picked `object` properties.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The source object.
|
|
* @param {...(string|string[])} [paths] The property paths to pick.
|
|
* @returns {Object} Returns the new object.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': '2', 'c': 3 };
|
|
*
|
|
* _.pick(object, ['a', 'c']);
|
|
* // => { 'a': 1, 'c': 3 }
|
|
*/
|
|
var pick = flatRest(function(object, paths) {
|
|
return object == null ? {} : basePick(object, paths);
|
|
});
|
|
|
|
/**
|
|
* Creates an object composed of the `object` properties `predicate` returns
|
|
* truthy for. The predicate is invoked with two arguments: (value, key).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The source object.
|
|
* @param {Function} [predicate=_.identity] The function invoked per property.
|
|
* @returns {Object} Returns the new object.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1, 'b': '2', 'c': 3 };
|
|
*
|
|
* _.pickBy(object, _.isNumber);
|
|
* // => { 'a': 1, 'c': 3 }
|
|
*/
|
|
function pickBy(object, predicate) {
|
|
if (object == null) {
|
|
return {};
|
|
}
|
|
var props = arrayMap(getAllKeysIn(object), function(prop) {
|
|
return [prop];
|
|
});
|
|
predicate = getIteratee(predicate);
|
|
return basePickBy(object, props, function(value, path) {
|
|
return predicate(value, path[0]);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.get` except that if the resolved value is a
|
|
* function it's invoked with the `this` binding of its parent object and
|
|
* its result is returned.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @param {Array|string} path The path of the property to resolve.
|
|
* @param {*} [defaultValue] The value returned for `undefined` resolved values.
|
|
* @returns {*} Returns the resolved value.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
|
|
*
|
|
* _.result(object, 'a[0].b.c1');
|
|
* // => 3
|
|
*
|
|
* _.result(object, 'a[0].b.c2');
|
|
* // => 4
|
|
*
|
|
* _.result(object, 'a[0].b.c3', 'default');
|
|
* // => 'default'
|
|
*
|
|
* _.result(object, 'a[0].b.c3', _.constant('default'));
|
|
* // => 'default'
|
|
*/
|
|
function result(object, path, defaultValue) {
|
|
path = castPath(path, object);
|
|
|
|
var index = -1,
|
|
length = path.length;
|
|
|
|
// Ensure the loop is entered when path is empty.
|
|
if (!length) {
|
|
length = 1;
|
|
object = undefined;
|
|
}
|
|
while (++index < length) {
|
|
var value = object == null ? undefined : object[toKey(path[index])];
|
|
if (value === undefined) {
|
|
index = length;
|
|
value = defaultValue;
|
|
}
|
|
object = isFunction(value) ? value.call(object) : value;
|
|
}
|
|
return object;
|
|
}
|
|
|
|
/**
|
|
* Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
|
|
* it's created. Arrays are created for missing index properties while objects
|
|
* are created for all other missing properties. Use `_.setWith` to customize
|
|
* `path` creation.
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.7.0
|
|
* @category Object
|
|
* @param {Object} object The object to modify.
|
|
* @param {Array|string} path The path of the property to set.
|
|
* @param {*} value The value to set.
|
|
* @returns {Object} Returns `object`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
|
|
*
|
|
* _.set(object, 'a[0].b.c', 4);
|
|
* console.log(object.a[0].b.c);
|
|
* // => 4
|
|
*
|
|
* _.set(object, ['x', '0', 'y', 'z'], 5);
|
|
* console.log(object.x[0].y.z);
|
|
* // => 5
|
|
*/
|
|
function set(object, path, value) {
|
|
return object == null ? object : baseSet(object, path, value);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.set` except that it accepts `customizer` which is
|
|
* invoked to produce the objects of `path`. If `customizer` returns `undefined`
|
|
* path creation is handled by the method instead. The `customizer` is invoked
|
|
* with three arguments: (nsValue, key, nsObject).
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to modify.
|
|
* @param {Array|string} path The path of the property to set.
|
|
* @param {*} value The value to set.
|
|
* @param {Function} [customizer] The function to customize assigned values.
|
|
* @returns {Object} Returns `object`.
|
|
* @example
|
|
*
|
|
* var object = {};
|
|
*
|
|
* _.setWith(object, '[0][1]', 'a', Object);
|
|
* // => { '0': { '1': 'a' } }
|
|
*/
|
|
function setWith(object, path, value, customizer) {
|
|
customizer = typeof customizer == 'function' ? customizer : undefined;
|
|
return object == null ? object : baseSet(object, path, value, customizer);
|
|
}
|
|
|
|
/**
|
|
* Creates an array of own enumerable string keyed-value pairs for `object`
|
|
* which can be consumed by `_.fromPairs`. If `object` is a map or set, its
|
|
* entries are returned.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @alias entries
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the key-value pairs.
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.toPairs(new Foo);
|
|
* // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
|
|
*/
|
|
var toPairs = createToPairs(keys);
|
|
|
|
/**
|
|
* Creates an array of own and inherited enumerable string keyed-value pairs
|
|
* for `object` which can be consumed by `_.fromPairs`. If `object` is a map
|
|
* or set, its entries are returned.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @alias entriesIn
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the key-value pairs.
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.toPairsIn(new Foo);
|
|
* // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
|
|
*/
|
|
var toPairsIn = createToPairs(keysIn);
|
|
|
|
/**
|
|
* An alternative to `_.reduce`; this method transforms `object` to a new
|
|
* `accumulator` object which is the result of running each of its own
|
|
* enumerable string keyed properties thru `iteratee`, with each invocation
|
|
* potentially mutating the `accumulator` object. If `accumulator` is not
|
|
* provided, a new object with the same `[[Prototype]]` will be used. The
|
|
* iteratee is invoked with four arguments: (accumulator, value, key, object).
|
|
* Iteratee functions may exit iteration early by explicitly returning `false`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.3.0
|
|
* @category Object
|
|
* @param {Object} object The object to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @param {*} [accumulator] The custom accumulator value.
|
|
* @returns {*} Returns the accumulated value.
|
|
* @example
|
|
*
|
|
* _.transform([2, 3, 4], function(result, n) {
|
|
* result.push(n *= n);
|
|
* return n % 2 == 0;
|
|
* }, []);
|
|
* // => [4, 9]
|
|
*
|
|
* _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
|
|
* (result[value] || (result[value] = [])).push(key);
|
|
* }, {});
|
|
* // => { '1': ['a', 'c'], '2': ['b'] }
|
|
*/
|
|
function transform(object, iteratee, accumulator) {
|
|
var isArr = isArray(object),
|
|
isArrLike = isArr || isBuffer(object) || isTypedArray(object);
|
|
|
|
iteratee = getIteratee(iteratee, 4);
|
|
if (accumulator == null) {
|
|
var Ctor = object && object.constructor;
|
|
if (isArrLike) {
|
|
accumulator = isArr ? new Ctor : [];
|
|
}
|
|
else if (isObject(object)) {
|
|
accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
|
|
}
|
|
else {
|
|
accumulator = {};
|
|
}
|
|
}
|
|
(isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
|
|
return iteratee(accumulator, value, index, object);
|
|
});
|
|
return accumulator;
|
|
}
|
|
|
|
/**
|
|
* Removes the property at `path` of `object`.
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to modify.
|
|
* @param {Array|string} path The path of the property to unset.
|
|
* @returns {boolean} Returns `true` if the property is deleted, else `false`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c': 7 } }] };
|
|
* _.unset(object, 'a[0].b.c');
|
|
* // => true
|
|
*
|
|
* console.log(object);
|
|
* // => { 'a': [{ 'b': {} }] };
|
|
*
|
|
* _.unset(object, ['a', '0', 'b', 'c']);
|
|
* // => true
|
|
*
|
|
* console.log(object);
|
|
* // => { 'a': [{ 'b': {} }] };
|
|
*/
|
|
function unset(object, path) {
|
|
return object == null ? true : baseUnset(object, path);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.set` except that accepts `updater` to produce the
|
|
* value to set. Use `_.updateWith` to customize `path` creation. The `updater`
|
|
* is invoked with one argument: (value).
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.6.0
|
|
* @category Object
|
|
* @param {Object} object The object to modify.
|
|
* @param {Array|string} path The path of the property to set.
|
|
* @param {Function} updater The function to produce the updated value.
|
|
* @returns {Object} Returns `object`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
|
|
*
|
|
* _.update(object, 'a[0].b.c', function(n) { return n * n; });
|
|
* console.log(object.a[0].b.c);
|
|
* // => 9
|
|
*
|
|
* _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
|
|
* console.log(object.x[0].y.z);
|
|
* // => 0
|
|
*/
|
|
function update(object, path, updater) {
|
|
return object == null ? object : baseUpdate(object, path, castFunction(updater));
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.update` except that it accepts `customizer` which is
|
|
* invoked to produce the objects of `path`. If `customizer` returns `undefined`
|
|
* path creation is handled by the method instead. The `customizer` is invoked
|
|
* with three arguments: (nsValue, key, nsObject).
|
|
*
|
|
* **Note:** This method mutates `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.6.0
|
|
* @category Object
|
|
* @param {Object} object The object to modify.
|
|
* @param {Array|string} path The path of the property to set.
|
|
* @param {Function} updater The function to produce the updated value.
|
|
* @param {Function} [customizer] The function to customize assigned values.
|
|
* @returns {Object} Returns `object`.
|
|
* @example
|
|
*
|
|
* var object = {};
|
|
*
|
|
* _.updateWith(object, '[0][1]', _.constant('a'), Object);
|
|
* // => { '0': { '1': 'a' } }
|
|
*/
|
|
function updateWith(object, path, updater, customizer) {
|
|
customizer = typeof customizer == 'function' ? customizer : undefined;
|
|
return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
|
|
}
|
|
|
|
/**
|
|
* Creates an array of the own enumerable string keyed property values of `object`.
|
|
*
|
|
* **Note:** Non-object values are coerced to objects.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property values.
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.values(new Foo);
|
|
* // => [1, 2] (iteration order is not guaranteed)
|
|
*
|
|
* _.values('hi');
|
|
* // => ['h', 'i']
|
|
*/
|
|
function values(object) {
|
|
return object == null ? [] : baseValues(object, keys(object));
|
|
}
|
|
|
|
/**
|
|
* Creates an array of the own and inherited enumerable string keyed property
|
|
* values of `object`.
|
|
*
|
|
* **Note:** Non-object values are coerced to objects.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Object
|
|
* @param {Object} object The object to query.
|
|
* @returns {Array} Returns the array of property values.
|
|
* @example
|
|
*
|
|
* function Foo() {
|
|
* this.a = 1;
|
|
* this.b = 2;
|
|
* }
|
|
*
|
|
* Foo.prototype.c = 3;
|
|
*
|
|
* _.valuesIn(new Foo);
|
|
* // => [1, 2, 3] (iteration order is not guaranteed)
|
|
*/
|
|
function valuesIn(object) {
|
|
return object == null ? [] : baseValues(object, keysIn(object));
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Clamps `number` within the inclusive `lower` and `upper` bounds.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Number
|
|
* @param {number} number The number to clamp.
|
|
* @param {number} [lower] The lower bound.
|
|
* @param {number} upper The upper bound.
|
|
* @returns {number} Returns the clamped number.
|
|
* @example
|
|
*
|
|
* _.clamp(-10, -5, 5);
|
|
* // => -5
|
|
*
|
|
* _.clamp(10, -5, 5);
|
|
* // => 5
|
|
*/
|
|
function clamp(number, lower, upper) {
|
|
if (upper === undefined) {
|
|
upper = lower;
|
|
lower = undefined;
|
|
}
|
|
if (upper !== undefined) {
|
|
upper = toNumber(upper);
|
|
upper = upper === upper ? upper : 0;
|
|
}
|
|
if (lower !== undefined) {
|
|
lower = toNumber(lower);
|
|
lower = lower === lower ? lower : 0;
|
|
}
|
|
return baseClamp(toNumber(number), lower, upper);
|
|
}
|
|
|
|
/**
|
|
* Checks if `n` is between `start` and up to, but not including, `end`. If
|
|
* `end` is not specified, it's set to `start` with `start` then set to `0`.
|
|
* If `start` is greater than `end` the params are swapped to support
|
|
* negative ranges.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.3.0
|
|
* @category Number
|
|
* @param {number} number The number to check.
|
|
* @param {number} [start=0] The start of the range.
|
|
* @param {number} end The end of the range.
|
|
* @returns {boolean} Returns `true` if `number` is in the range, else `false`.
|
|
* @see _.range, _.rangeRight
|
|
* @example
|
|
*
|
|
* _.inRange(3, 2, 4);
|
|
* // => true
|
|
*
|
|
* _.inRange(4, 8);
|
|
* // => true
|
|
*
|
|
* _.inRange(4, 2);
|
|
* // => false
|
|
*
|
|
* _.inRange(2, 2);
|
|
* // => false
|
|
*
|
|
* _.inRange(1.2, 2);
|
|
* // => true
|
|
*
|
|
* _.inRange(5.2, 4);
|
|
* // => false
|
|
*
|
|
* _.inRange(-3, -2, -6);
|
|
* // => true
|
|
*/
|
|
function inRange(number, start, end) {
|
|
start = toFinite(start);
|
|
if (end === undefined) {
|
|
end = start;
|
|
start = 0;
|
|
} else {
|
|
end = toFinite(end);
|
|
}
|
|
number = toNumber(number);
|
|
return baseInRange(number, start, end);
|
|
}
|
|
|
|
/**
|
|
* Produces a random number between the inclusive `lower` and `upper` bounds.
|
|
* If only one argument is provided a number between `0` and the given number
|
|
* is returned. If `floating` is `true`, or either `lower` or `upper` are
|
|
* floats, a floating-point number is returned instead of an integer.
|
|
*
|
|
* **Note:** JavaScript follows the IEEE-754 standard for resolving
|
|
* floating-point values which can produce unexpected results.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.7.0
|
|
* @category Number
|
|
* @param {number} [lower=0] The lower bound.
|
|
* @param {number} [upper=1] The upper bound.
|
|
* @param {boolean} [floating] Specify returning a floating-point number.
|
|
* @returns {number} Returns the random number.
|
|
* @example
|
|
*
|
|
* _.random(0, 5);
|
|
* // => an integer between 0 and 5
|
|
*
|
|
* _.random(5);
|
|
* // => also an integer between 0 and 5
|
|
*
|
|
* _.random(5, true);
|
|
* // => a floating-point number between 0 and 5
|
|
*
|
|
* _.random(1.2, 5.2);
|
|
* // => a floating-point number between 1.2 and 5.2
|
|
*/
|
|
function random(lower, upper, floating) {
|
|
if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
|
|
upper = floating = undefined;
|
|
}
|
|
if (floating === undefined) {
|
|
if (typeof upper == 'boolean') {
|
|
floating = upper;
|
|
upper = undefined;
|
|
}
|
|
else if (typeof lower == 'boolean') {
|
|
floating = lower;
|
|
lower = undefined;
|
|
}
|
|
}
|
|
if (lower === undefined && upper === undefined) {
|
|
lower = 0;
|
|
upper = 1;
|
|
}
|
|
else {
|
|
lower = toFinite(lower);
|
|
if (upper === undefined) {
|
|
upper = lower;
|
|
lower = 0;
|
|
} else {
|
|
upper = toFinite(upper);
|
|
}
|
|
}
|
|
if (lower > upper) {
|
|
var temp = lower;
|
|
lower = upper;
|
|
upper = temp;
|
|
}
|
|
if (floating || lower % 1 || upper % 1) {
|
|
var rand = nativeRandom();
|
|
return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
|
|
}
|
|
return baseRandom(lower, upper);
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the camel cased string.
|
|
* @example
|
|
*
|
|
* _.camelCase('Foo Bar');
|
|
* // => 'fooBar'
|
|
*
|
|
* _.camelCase('--foo-bar--');
|
|
* // => 'fooBar'
|
|
*
|
|
* _.camelCase('__FOO_BAR__');
|
|
* // => 'fooBar'
|
|
*/
|
|
var camelCase = createCompounder(function(result, word, index) {
|
|
word = word.toLowerCase();
|
|
return result + (index ? capitalize(word) : word);
|
|
});
|
|
|
|
/**
|
|
* Converts the first character of `string` to upper case and the remaining
|
|
* to lower case.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to capitalize.
|
|
* @returns {string} Returns the capitalized string.
|
|
* @example
|
|
*
|
|
* _.capitalize('FRED');
|
|
* // => 'Fred'
|
|
*/
|
|
function capitalize(string) {
|
|
return upperFirst(toString(string).toLowerCase());
|
|
}
|
|
|
|
/**
|
|
* Deburrs `string` by converting
|
|
* [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
|
|
* and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
|
|
* letters to basic Latin letters and removing
|
|
* [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to deburr.
|
|
* @returns {string} Returns the deburred string.
|
|
* @example
|
|
*
|
|
* _.deburr('déjà vu');
|
|
* // => 'deja vu'
|
|
*/
|
|
function deburr(string) {
|
|
string = toString(string);
|
|
return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
|
|
}
|
|
|
|
/**
|
|
* Checks if `string` ends with the given target string.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to inspect.
|
|
* @param {string} [target] The string to search for.
|
|
* @param {number} [position=string.length] The position to search up to.
|
|
* @returns {boolean} Returns `true` if `string` ends with `target`,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.endsWith('abc', 'c');
|
|
* // => true
|
|
*
|
|
* _.endsWith('abc', 'b');
|
|
* // => false
|
|
*
|
|
* _.endsWith('abc', 'b', 2);
|
|
* // => true
|
|
*/
|
|
function endsWith(string, target, position) {
|
|
string = toString(string);
|
|
target = baseToString(target);
|
|
|
|
var length = string.length;
|
|
position = position === undefined
|
|
? length
|
|
: baseClamp(toInteger(position), 0, length);
|
|
|
|
var end = position;
|
|
position -= target.length;
|
|
return position >= 0 && string.slice(position, end) == target;
|
|
}
|
|
|
|
/**
|
|
* Converts the characters "&", "<", ">", '"', and "'" in `string` to their
|
|
* corresponding HTML entities.
|
|
*
|
|
* **Note:** No other characters are escaped. To escape additional
|
|
* characters use a third-party library like [_he_](https://mths.be/he).
|
|
*
|
|
* Though the ">" character is escaped for symmetry, characters like
|
|
* ">" and "/" don't need escaping in HTML and have no special meaning
|
|
* unless they're part of a tag or unquoted attribute value. See
|
|
* [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
|
|
* (under "semi-related fun fact") for more details.
|
|
*
|
|
* When working with HTML you should always
|
|
* [quote attribute values](http://wonko.com/post/html-escaping) to reduce
|
|
* XSS vectors.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category String
|
|
* @param {string} [string=''] The string to escape.
|
|
* @returns {string} Returns the escaped string.
|
|
* @example
|
|
*
|
|
* _.escape('fred, barney, & pebbles');
|
|
* // => 'fred, barney, & pebbles'
|
|
*/
|
|
function escape(string) {
|
|
string = toString(string);
|
|
return (string && reHasUnescapedHtml.test(string))
|
|
? string.replace(reUnescapedHtml, escapeHtmlChar)
|
|
: string;
|
|
}
|
|
|
|
/**
|
|
* Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
|
|
* "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to escape.
|
|
* @returns {string} Returns the escaped string.
|
|
* @example
|
|
*
|
|
* _.escapeRegExp('[lodash](https://lodash.com/)');
|
|
* // => '\[lodash\]\(https://lodash\.com/\)'
|
|
*/
|
|
function escapeRegExp(string) {
|
|
string = toString(string);
|
|
return (string && reHasRegExpChar.test(string))
|
|
? string.replace(reRegExpChar, '\\$&')
|
|
: string;
|
|
}
|
|
|
|
/**
|
|
* Converts `string` to
|
|
* [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the kebab cased string.
|
|
* @example
|
|
*
|
|
* _.kebabCase('Foo Bar');
|
|
* // => 'foo-bar'
|
|
*
|
|
* _.kebabCase('fooBar');
|
|
* // => 'foo-bar'
|
|
*
|
|
* _.kebabCase('__FOO_BAR__');
|
|
* // => 'foo-bar'
|
|
*/
|
|
var kebabCase = createCompounder(function(result, word, index) {
|
|
return result + (index ? '-' : '') + word.toLowerCase();
|
|
});
|
|
|
|
/**
|
|
* Converts `string`, as space separated words, to lower case.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the lower cased string.
|
|
* @example
|
|
*
|
|
* _.lowerCase('--Foo-Bar--');
|
|
* // => 'foo bar'
|
|
*
|
|
* _.lowerCase('fooBar');
|
|
* // => 'foo bar'
|
|
*
|
|
* _.lowerCase('__FOO_BAR__');
|
|
* // => 'foo bar'
|
|
*/
|
|
var lowerCase = createCompounder(function(result, word, index) {
|
|
return result + (index ? ' ' : '') + word.toLowerCase();
|
|
});
|
|
|
|
/**
|
|
* Converts the first character of `string` to lower case.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the converted string.
|
|
* @example
|
|
*
|
|
* _.lowerFirst('Fred');
|
|
* // => 'fred'
|
|
*
|
|
* _.lowerFirst('FRED');
|
|
* // => 'fRED'
|
|
*/
|
|
var lowerFirst = createCaseFirst('toLowerCase');
|
|
|
|
/**
|
|
* Pads `string` on the left and right sides if it's shorter than `length`.
|
|
* Padding characters are truncated if they can't be evenly divided by `length`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to pad.
|
|
* @param {number} [length=0] The padding length.
|
|
* @param {string} [chars=' '] The string used as padding.
|
|
* @returns {string} Returns the padded string.
|
|
* @example
|
|
*
|
|
* _.pad('abc', 8);
|
|
* // => ' abc '
|
|
*
|
|
* _.pad('abc', 8, '_-');
|
|
* // => '_-abc_-_'
|
|
*
|
|
* _.pad('abc', 3);
|
|
* // => 'abc'
|
|
*/
|
|
function pad(string, length, chars) {
|
|
string = toString(string);
|
|
length = toInteger(length);
|
|
|
|
var strLength = length ? stringSize(string) : 0;
|
|
if (!length || strLength >= length) {
|
|
return string;
|
|
}
|
|
var mid = (length - strLength) / 2;
|
|
return (
|
|
createPadding(nativeFloor(mid), chars) +
|
|
string +
|
|
createPadding(nativeCeil(mid), chars)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Pads `string` on the right side if it's shorter than `length`. Padding
|
|
* characters are truncated if they exceed `length`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to pad.
|
|
* @param {number} [length=0] The padding length.
|
|
* @param {string} [chars=' '] The string used as padding.
|
|
* @returns {string} Returns the padded string.
|
|
* @example
|
|
*
|
|
* _.padEnd('abc', 6);
|
|
* // => 'abc '
|
|
*
|
|
* _.padEnd('abc', 6, '_-');
|
|
* // => 'abc_-_'
|
|
*
|
|
* _.padEnd('abc', 3);
|
|
* // => 'abc'
|
|
*/
|
|
function padEnd(string, length, chars) {
|
|
string = toString(string);
|
|
length = toInteger(length);
|
|
|
|
var strLength = length ? stringSize(string) : 0;
|
|
return (length && strLength < length)
|
|
? (string + createPadding(length - strLength, chars))
|
|
: string;
|
|
}
|
|
|
|
/**
|
|
* Pads `string` on the left side if it's shorter than `length`. Padding
|
|
* characters are truncated if they exceed `length`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to pad.
|
|
* @param {number} [length=0] The padding length.
|
|
* @param {string} [chars=' '] The string used as padding.
|
|
* @returns {string} Returns the padded string.
|
|
* @example
|
|
*
|
|
* _.padStart('abc', 6);
|
|
* // => ' abc'
|
|
*
|
|
* _.padStart('abc', 6, '_-');
|
|
* // => '_-_abc'
|
|
*
|
|
* _.padStart('abc', 3);
|
|
* // => 'abc'
|
|
*/
|
|
function padStart(string, length, chars) {
|
|
string = toString(string);
|
|
length = toInteger(length);
|
|
|
|
var strLength = length ? stringSize(string) : 0;
|
|
return (length && strLength < length)
|
|
? (createPadding(length - strLength, chars) + string)
|
|
: string;
|
|
}
|
|
|
|
/**
|
|
* Converts `string` to an integer of the specified radix. If `radix` is
|
|
* `undefined` or `0`, a `radix` of `10` is used unless `value` is a
|
|
* hexadecimal, in which case a `radix` of `16` is used.
|
|
*
|
|
* **Note:** This method aligns with the
|
|
* [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 1.1.0
|
|
* @category String
|
|
* @param {string} string The string to convert.
|
|
* @param {number} [radix=10] The radix to interpret `value` by.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {number} Returns the converted integer.
|
|
* @example
|
|
*
|
|
* _.parseInt('08');
|
|
* // => 8
|
|
*
|
|
* _.map(['6', '08', '10'], _.parseInt);
|
|
* // => [6, 8, 10]
|
|
*/
|
|
function parseInt(string, radix, guard) {
|
|
if (guard || radix == null) {
|
|
radix = 0;
|
|
} else if (radix) {
|
|
radix = +radix;
|
|
}
|
|
return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
|
|
}
|
|
|
|
/**
|
|
* Repeats the given string `n` times.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to repeat.
|
|
* @param {number} [n=1] The number of times to repeat the string.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {string} Returns the repeated string.
|
|
* @example
|
|
*
|
|
* _.repeat('*', 3);
|
|
* // => '***'
|
|
*
|
|
* _.repeat('abc', 2);
|
|
* // => 'abcabc'
|
|
*
|
|
* _.repeat('abc', 0);
|
|
* // => ''
|
|
*/
|
|
function repeat(string, n, guard) {
|
|
if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
|
|
n = 1;
|
|
} else {
|
|
n = toInteger(n);
|
|
}
|
|
return baseRepeat(toString(string), n);
|
|
}
|
|
|
|
/**
|
|
* Replaces matches for `pattern` in `string` with `replacement`.
|
|
*
|
|
* **Note:** This method is based on
|
|
* [`String#replace`](https://mdn.io/String/replace).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to modify.
|
|
* @param {RegExp|string} pattern The pattern to replace.
|
|
* @param {Function|string} replacement The match replacement.
|
|
* @returns {string} Returns the modified string.
|
|
* @example
|
|
*
|
|
* _.replace('Hi Fred', 'Fred', 'Barney');
|
|
* // => 'Hi Barney'
|
|
*/
|
|
function replace() {
|
|
var args = arguments,
|
|
string = toString(args[0]);
|
|
|
|
return args.length < 3 ? string : string.replace(args[1], args[2]);
|
|
}
|
|
|
|
/**
|
|
* Converts `string` to
|
|
* [snake case](https://en.wikipedia.org/wiki/Snake_case).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the snake cased string.
|
|
* @example
|
|
*
|
|
* _.snakeCase('Foo Bar');
|
|
* // => 'foo_bar'
|
|
*
|
|
* _.snakeCase('fooBar');
|
|
* // => 'foo_bar'
|
|
*
|
|
* _.snakeCase('--FOO-BAR--');
|
|
* // => 'foo_bar'
|
|
*/
|
|
var snakeCase = createCompounder(function(result, word, index) {
|
|
return result + (index ? '_' : '') + word.toLowerCase();
|
|
});
|
|
|
|
/**
|
|
* Splits `string` by `separator`.
|
|
*
|
|
* **Note:** This method is based on
|
|
* [`String#split`](https://mdn.io/String/split).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to split.
|
|
* @param {RegExp|string} separator The separator pattern to split by.
|
|
* @param {number} [limit] The length to truncate results to.
|
|
* @returns {Array} Returns the string segments.
|
|
* @example
|
|
*
|
|
* _.split('a-b-c', '-', 2);
|
|
* // => ['a', 'b']
|
|
*/
|
|
function split(string, separator, limit) {
|
|
if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
|
|
separator = limit = undefined;
|
|
}
|
|
limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
|
|
if (!limit) {
|
|
return [];
|
|
}
|
|
string = toString(string);
|
|
if (string && (
|
|
typeof separator == 'string' ||
|
|
(separator != null && !isRegExp(separator))
|
|
)) {
|
|
separator = baseToString(separator);
|
|
if (!separator && hasUnicode(string)) {
|
|
return castSlice(stringToArray(string), 0, limit);
|
|
}
|
|
}
|
|
return string.split(separator, limit);
|
|
}
|
|
|
|
/**
|
|
* Converts `string` to
|
|
* [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.1.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the start cased string.
|
|
* @example
|
|
*
|
|
* _.startCase('--foo-bar--');
|
|
* // => 'Foo Bar'
|
|
*
|
|
* _.startCase('fooBar');
|
|
* // => 'Foo Bar'
|
|
*
|
|
* _.startCase('__FOO_BAR__');
|
|
* // => 'FOO BAR'
|
|
*/
|
|
var startCase = createCompounder(function(result, word, index) {
|
|
return result + (index ? ' ' : '') + upperFirst(word);
|
|
});
|
|
|
|
/**
|
|
* Checks if `string` starts with the given target string.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to inspect.
|
|
* @param {string} [target] The string to search for.
|
|
* @param {number} [position=0] The position to search from.
|
|
* @returns {boolean} Returns `true` if `string` starts with `target`,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.startsWith('abc', 'a');
|
|
* // => true
|
|
*
|
|
* _.startsWith('abc', 'b');
|
|
* // => false
|
|
*
|
|
* _.startsWith('abc', 'b', 1);
|
|
* // => true
|
|
*/
|
|
function startsWith(string, target, position) {
|
|
string = toString(string);
|
|
position = position == null
|
|
? 0
|
|
: baseClamp(toInteger(position), 0, string.length);
|
|
|
|
target = baseToString(target);
|
|
return string.slice(position, position + target.length) == target;
|
|
}
|
|
|
|
/**
|
|
* Creates a compiled template function that can interpolate data properties
|
|
* in "interpolate" delimiters, HTML-escape interpolated data properties in
|
|
* "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
|
|
* properties may be accessed as free variables in the template. If a setting
|
|
* object is given, it takes precedence over `_.templateSettings` values.
|
|
*
|
|
* **Note:** In the development build `_.template` utilizes
|
|
* [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
|
|
* for easier debugging.
|
|
*
|
|
* For more information on precompiling templates see
|
|
* [lodash's custom builds documentation](https://lodash.com/custom-builds).
|
|
*
|
|
* For more information on Chrome extension sandboxes see
|
|
* [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category String
|
|
* @param {string} [string=''] The template string.
|
|
* @param {Object} [options={}] The options object.
|
|
* @param {RegExp} [options.escape=_.templateSettings.escape]
|
|
* The HTML "escape" delimiter.
|
|
* @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
|
|
* The "evaluate" delimiter.
|
|
* @param {Object} [options.imports=_.templateSettings.imports]
|
|
* An object to import into the template as free variables.
|
|
* @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
|
|
* The "interpolate" delimiter.
|
|
* @param {string} [options.sourceURL='lodash.templateSources[n]']
|
|
* The sourceURL of the compiled template.
|
|
* @param {string} [options.variable='obj']
|
|
* The data object variable name.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Function} Returns the compiled template function.
|
|
* @example
|
|
*
|
|
* // Use the "interpolate" delimiter to create a compiled template.
|
|
* var compiled = _.template('hello <%= user %>!');
|
|
* compiled({ 'user': 'fred' });
|
|
* // => 'hello fred!'
|
|
*
|
|
* // Use the HTML "escape" delimiter to escape data property values.
|
|
* var compiled = _.template('<b><%- value %></b>');
|
|
* compiled({ 'value': '<script>' });
|
|
* // => '<b><script></b>'
|
|
*
|
|
* // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
|
|
* var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
|
|
* compiled({ 'users': ['fred', 'barney'] });
|
|
* // => '<li>fred</li><li>barney</li>'
|
|
*
|
|
* // Use the internal `print` function in "evaluate" delimiters.
|
|
* var compiled = _.template('<% print("hello " + user); %>!');
|
|
* compiled({ 'user': 'barney' });
|
|
* // => 'hello barney!'
|
|
*
|
|
* // Use the ES template literal delimiter as an "interpolate" delimiter.
|
|
* // Disable support by replacing the "interpolate" delimiter.
|
|
* var compiled = _.template('hello ${ user }!');
|
|
* compiled({ 'user': 'pebbles' });
|
|
* // => 'hello pebbles!'
|
|
*
|
|
* // Use backslashes to treat delimiters as plain text.
|
|
* var compiled = _.template('<%= "\\<%- value %\\>" %>');
|
|
* compiled({ 'value': 'ignored' });
|
|
* // => '<%- value %>'
|
|
*
|
|
* // Use the `imports` option to import `jQuery` as `jq`.
|
|
* var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
|
|
* var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
|
|
* compiled({ 'users': ['fred', 'barney'] });
|
|
* // => '<li>fred</li><li>barney</li>'
|
|
*
|
|
* // Use the `sourceURL` option to specify a custom sourceURL for the template.
|
|
* var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
|
|
* compiled(data);
|
|
* // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
|
|
*
|
|
* // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
|
|
* var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
|
|
* compiled.source;
|
|
* // => function(data) {
|
|
* // var __t, __p = '';
|
|
* // __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
|
|
* // return __p;
|
|
* // }
|
|
*
|
|
* // Use custom template delimiters.
|
|
* _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
|
|
* var compiled = _.template('hello {{ user }}!');
|
|
* compiled({ 'user': 'mustache' });
|
|
* // => 'hello mustache!'
|
|
*
|
|
* // Use the `source` property to inline compiled templates for meaningful
|
|
* // line numbers in error messages and stack traces.
|
|
* fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
|
|
* var JST = {\
|
|
* "main": ' + _.template(mainText).source + '\
|
|
* };\
|
|
* ');
|
|
*/
|
|
function template(string, options, guard) {
|
|
// Based on John Resig's `tmpl` implementation
|
|
// (http://ejohn.org/blog/javascript-micro-templating/)
|
|
// and Laura Doktorova's doT.js (https://github.com/olado/doT).
|
|
var settings = lodash.templateSettings;
|
|
|
|
if (guard && isIterateeCall(string, options, guard)) {
|
|
options = undefined;
|
|
}
|
|
string = toString(string);
|
|
options = assignInWith({}, options, settings, customDefaultsAssignIn);
|
|
|
|
var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
|
|
importsKeys = keys(imports),
|
|
importsValues = baseValues(imports, importsKeys);
|
|
|
|
var isEscaping,
|
|
isEvaluating,
|
|
index = 0,
|
|
interpolate = options.interpolate || reNoMatch,
|
|
source = "__p += '";
|
|
|
|
// Compile the regexp to match each delimiter.
|
|
var reDelimiters = RegExp(
|
|
(options.escape || reNoMatch).source + '|' +
|
|
interpolate.source + '|' +
|
|
(interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
|
|
(options.evaluate || reNoMatch).source + '|$'
|
|
, 'g');
|
|
|
|
// Use a sourceURL for easier debugging.
|
|
// The sourceURL gets injected into the source that's eval-ed, so be careful
|
|
// to normalize all kinds of whitespace, so e.g. newlines (and unicode versions of it) can't sneak in
|
|
// and escape the comment, thus injecting code that gets evaled.
|
|
var sourceURL = '//# sourceURL=' +
|
|
(hasOwnProperty.call(options, 'sourceURL')
|
|
? (options.sourceURL + '').replace(/\s/g, ' ')
|
|
: ('lodash.templateSources[' + (++templateCounter) + ']')
|
|
) + '\n';
|
|
|
|
string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
|
|
interpolateValue || (interpolateValue = esTemplateValue);
|
|
|
|
// Escape characters that can't be included in string literals.
|
|
source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
|
|
|
|
// Replace delimiters with snippets.
|
|
if (escapeValue) {
|
|
isEscaping = true;
|
|
source += "' +\n__e(" + escapeValue + ") +\n'";
|
|
}
|
|
if (evaluateValue) {
|
|
isEvaluating = true;
|
|
source += "';\n" + evaluateValue + ";\n__p += '";
|
|
}
|
|
if (interpolateValue) {
|
|
source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
|
|
}
|
|
index = offset + match.length;
|
|
|
|
// The JS engine embedded in Adobe products needs `match` returned in
|
|
// order to produce the correct `offset` value.
|
|
return match;
|
|
});
|
|
|
|
source += "';\n";
|
|
|
|
// If `variable` is not specified wrap a with-statement around the generated
|
|
// code to add the data object to the top of the scope chain.
|
|
var variable = hasOwnProperty.call(options, 'variable') && options.variable;
|
|
if (!variable) {
|
|
source = 'with (obj) {\n' + source + '\n}\n';
|
|
}
|
|
// Cleanup code by stripping empty strings.
|
|
source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
|
|
.replace(reEmptyStringMiddle, '$1')
|
|
.replace(reEmptyStringTrailing, '$1;');
|
|
|
|
// Frame code as the function body.
|
|
source = 'function(' + (variable || 'obj') + ') {\n' +
|
|
(variable
|
|
? ''
|
|
: 'obj || (obj = {});\n'
|
|
) +
|
|
"var __t, __p = ''" +
|
|
(isEscaping
|
|
? ', __e = _.escape'
|
|
: ''
|
|
) +
|
|
(isEvaluating
|
|
? ', __j = Array.prototype.join;\n' +
|
|
"function print() { __p += __j.call(arguments, '') }\n"
|
|
: ';\n'
|
|
) +
|
|
source +
|
|
'return __p\n}';
|
|
|
|
var result = attempt(function() {
|
|
return Function(importsKeys, sourceURL + 'return ' + source)
|
|
.apply(undefined, importsValues);
|
|
});
|
|
|
|
// Provide the compiled function's source by its `toString` method or
|
|
// the `source` property as a convenience for inlining compiled templates.
|
|
result.source = source;
|
|
if (isError(result)) {
|
|
throw result;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Converts `string`, as a whole, to lower case just like
|
|
* [String#toLowerCase](https://mdn.io/toLowerCase).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the lower cased string.
|
|
* @example
|
|
*
|
|
* _.toLower('--Foo-Bar--');
|
|
* // => '--foo-bar--'
|
|
*
|
|
* _.toLower('fooBar');
|
|
* // => 'foobar'
|
|
*
|
|
* _.toLower('__FOO_BAR__');
|
|
* // => '__foo_bar__'
|
|
*/
|
|
function toLower(value) {
|
|
return toString(value).toLowerCase();
|
|
}
|
|
|
|
/**
|
|
* Converts `string`, as a whole, to upper case just like
|
|
* [String#toUpperCase](https://mdn.io/toUpperCase).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the upper cased string.
|
|
* @example
|
|
*
|
|
* _.toUpper('--foo-bar--');
|
|
* // => '--FOO-BAR--'
|
|
*
|
|
* _.toUpper('fooBar');
|
|
* // => 'FOOBAR'
|
|
*
|
|
* _.toUpper('__foo_bar__');
|
|
* // => '__FOO_BAR__'
|
|
*/
|
|
function toUpper(value) {
|
|
return toString(value).toUpperCase();
|
|
}
|
|
|
|
/**
|
|
* Removes leading and trailing whitespace or specified characters from `string`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to trim.
|
|
* @param {string} [chars=whitespace] The characters to trim.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {string} Returns the trimmed string.
|
|
* @example
|
|
*
|
|
* _.trim(' abc ');
|
|
* // => 'abc'
|
|
*
|
|
* _.trim('-_-abc-_-', '_-');
|
|
* // => 'abc'
|
|
*
|
|
* _.map([' foo ', ' bar '], _.trim);
|
|
* // => ['foo', 'bar']
|
|
*/
|
|
function trim(string, chars, guard) {
|
|
string = toString(string);
|
|
if (string && (guard || chars === undefined)) {
|
|
return string.replace(reTrim, '');
|
|
}
|
|
if (!string || !(chars = baseToString(chars))) {
|
|
return string;
|
|
}
|
|
var strSymbols = stringToArray(string),
|
|
chrSymbols = stringToArray(chars),
|
|
start = charsStartIndex(strSymbols, chrSymbols),
|
|
end = charsEndIndex(strSymbols, chrSymbols) + 1;
|
|
|
|
return castSlice(strSymbols, start, end).join('');
|
|
}
|
|
|
|
/**
|
|
* Removes trailing whitespace or specified characters from `string`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to trim.
|
|
* @param {string} [chars=whitespace] The characters to trim.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {string} Returns the trimmed string.
|
|
* @example
|
|
*
|
|
* _.trimEnd(' abc ');
|
|
* // => ' abc'
|
|
*
|
|
* _.trimEnd('-_-abc-_-', '_-');
|
|
* // => '-_-abc'
|
|
*/
|
|
function trimEnd(string, chars, guard) {
|
|
string = toString(string);
|
|
if (string && (guard || chars === undefined)) {
|
|
return string.replace(reTrimEnd, '');
|
|
}
|
|
if (!string || !(chars = baseToString(chars))) {
|
|
return string;
|
|
}
|
|
var strSymbols = stringToArray(string),
|
|
end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;
|
|
|
|
return castSlice(strSymbols, 0, end).join('');
|
|
}
|
|
|
|
/**
|
|
* Removes leading whitespace or specified characters from `string`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to trim.
|
|
* @param {string} [chars=whitespace] The characters to trim.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {string} Returns the trimmed string.
|
|
* @example
|
|
*
|
|
* _.trimStart(' abc ');
|
|
* // => 'abc '
|
|
*
|
|
* _.trimStart('-_-abc-_-', '_-');
|
|
* // => 'abc-_-'
|
|
*/
|
|
function trimStart(string, chars, guard) {
|
|
string = toString(string);
|
|
if (string && (guard || chars === undefined)) {
|
|
return string.replace(reTrimStart, '');
|
|
}
|
|
if (!string || !(chars = baseToString(chars))) {
|
|
return string;
|
|
}
|
|
var strSymbols = stringToArray(string),
|
|
start = charsStartIndex(strSymbols, stringToArray(chars));
|
|
|
|
return castSlice(strSymbols, start).join('');
|
|
}
|
|
|
|
/**
|
|
* Truncates `string` if it's longer than the given maximum string length.
|
|
* The last characters of the truncated string are replaced with the omission
|
|
* string which defaults to "...".
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to truncate.
|
|
* @param {Object} [options={}] The options object.
|
|
* @param {number} [options.length=30] The maximum string length.
|
|
* @param {string} [options.omission='...'] The string to indicate text is omitted.
|
|
* @param {RegExp|string} [options.separator] The separator pattern to truncate to.
|
|
* @returns {string} Returns the truncated string.
|
|
* @example
|
|
*
|
|
* _.truncate('hi-diddly-ho there, neighborino');
|
|
* // => 'hi-diddly-ho there, neighbo...'
|
|
*
|
|
* _.truncate('hi-diddly-ho there, neighborino', {
|
|
* 'length': 24,
|
|
* 'separator': ' '
|
|
* });
|
|
* // => 'hi-diddly-ho there,...'
|
|
*
|
|
* _.truncate('hi-diddly-ho there, neighborino', {
|
|
* 'length': 24,
|
|
* 'separator': /,? +/
|
|
* });
|
|
* // => 'hi-diddly-ho there...'
|
|
*
|
|
* _.truncate('hi-diddly-ho there, neighborino', {
|
|
* 'omission': ' [...]'
|
|
* });
|
|
* // => 'hi-diddly-ho there, neig [...]'
|
|
*/
|
|
function truncate(string, options) {
|
|
var length = DEFAULT_TRUNC_LENGTH,
|
|
omission = DEFAULT_TRUNC_OMISSION;
|
|
|
|
if (isObject(options)) {
|
|
var separator = 'separator' in options ? options.separator : separator;
|
|
length = 'length' in options ? toInteger(options.length) : length;
|
|
omission = 'omission' in options ? baseToString(options.omission) : omission;
|
|
}
|
|
string = toString(string);
|
|
|
|
var strLength = string.length;
|
|
if (hasUnicode(string)) {
|
|
var strSymbols = stringToArray(string);
|
|
strLength = strSymbols.length;
|
|
}
|
|
if (length >= strLength) {
|
|
return string;
|
|
}
|
|
var end = length - stringSize(omission);
|
|
if (end < 1) {
|
|
return omission;
|
|
}
|
|
var result = strSymbols
|
|
? castSlice(strSymbols, 0, end).join('')
|
|
: string.slice(0, end);
|
|
|
|
if (separator === undefined) {
|
|
return result + omission;
|
|
}
|
|
if (strSymbols) {
|
|
end += (result.length - end);
|
|
}
|
|
if (isRegExp(separator)) {
|
|
if (string.slice(end).search(separator)) {
|
|
var match,
|
|
substring = result;
|
|
|
|
if (!separator.global) {
|
|
separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
|
|
}
|
|
separator.lastIndex = 0;
|
|
while ((match = separator.exec(substring))) {
|
|
var newEnd = match.index;
|
|
}
|
|
result = result.slice(0, newEnd === undefined ? end : newEnd);
|
|
}
|
|
} else if (string.indexOf(baseToString(separator), end) != end) {
|
|
var index = result.lastIndexOf(separator);
|
|
if (index > -1) {
|
|
result = result.slice(0, index);
|
|
}
|
|
}
|
|
return result + omission;
|
|
}
|
|
|
|
/**
|
|
* The inverse of `_.escape`; this method converts the HTML entities
|
|
* `&`, `<`, `>`, `"`, and `'` in `string` to
|
|
* their corresponding characters.
|
|
*
|
|
* **Note:** No other HTML entities are unescaped. To unescape additional
|
|
* HTML entities use a third-party library like [_he_](https://mths.be/he).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.6.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to unescape.
|
|
* @returns {string} Returns the unescaped string.
|
|
* @example
|
|
*
|
|
* _.unescape('fred, barney, & pebbles');
|
|
* // => 'fred, barney, & pebbles'
|
|
*/
|
|
function unescape(string) {
|
|
string = toString(string);
|
|
return (string && reHasEscapedHtml.test(string))
|
|
? string.replace(reEscapedHtml, unescapeHtmlChar)
|
|
: string;
|
|
}
|
|
|
|
/**
|
|
* Converts `string`, as space separated words, to upper case.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the upper cased string.
|
|
* @example
|
|
*
|
|
* _.upperCase('--foo-bar');
|
|
* // => 'FOO BAR'
|
|
*
|
|
* _.upperCase('fooBar');
|
|
* // => 'FOO BAR'
|
|
*
|
|
* _.upperCase('__foo_bar__');
|
|
* // => 'FOO BAR'
|
|
*/
|
|
var upperCase = createCompounder(function(result, word, index) {
|
|
return result + (index ? ' ' : '') + word.toUpperCase();
|
|
});
|
|
|
|
/**
|
|
* Converts the first character of `string` to upper case.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to convert.
|
|
* @returns {string} Returns the converted string.
|
|
* @example
|
|
*
|
|
* _.upperFirst('fred');
|
|
* // => 'Fred'
|
|
*
|
|
* _.upperFirst('FRED');
|
|
* // => 'FRED'
|
|
*/
|
|
var upperFirst = createCaseFirst('toUpperCase');
|
|
|
|
/**
|
|
* Splits `string` into an array of its words.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to inspect.
|
|
* @param {RegExp|string} [pattern] The pattern to match words.
|
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
|
* @returns {Array} Returns the words of `string`.
|
|
* @example
|
|
*
|
|
* _.words('fred, barney, & pebbles');
|
|
* // => ['fred', 'barney', 'pebbles']
|
|
*
|
|
* _.words('fred, barney, & pebbles', /[^, ]+/g);
|
|
* // => ['fred', 'barney', '&', 'pebbles']
|
|
*/
|
|
function words(string, pattern, guard) {
|
|
string = toString(string);
|
|
pattern = guard ? undefined : pattern;
|
|
|
|
if (pattern === undefined) {
|
|
return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
|
|
}
|
|
return string.match(pattern) || [];
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Attempts to invoke `func`, returning either the result or the caught error
|
|
* object. Any additional arguments are provided to `func` when it's invoked.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Util
|
|
* @param {Function} func The function to attempt.
|
|
* @param {...*} [args] The arguments to invoke `func` with.
|
|
* @returns {*} Returns the `func` result or error object.
|
|
* @example
|
|
*
|
|
* // Avoid throwing errors for invalid selectors.
|
|
* var elements = _.attempt(function(selector) {
|
|
* return document.querySelectorAll(selector);
|
|
* }, '>_>');
|
|
*
|
|
* if (_.isError(elements)) {
|
|
* elements = [];
|
|
* }
|
|
*/
|
|
var attempt = baseRest(function(func, args) {
|
|
try {
|
|
return apply(func, undefined, args);
|
|
} catch (e) {
|
|
return isError(e) ? e : new Error(e);
|
|
}
|
|
});
|
|
|
|
/**
|
|
* Binds methods of an object to the object itself, overwriting the existing
|
|
* method.
|
|
*
|
|
* **Note:** This method doesn't set the "length" property of bound functions.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @param {Object} object The object to bind and assign the bound methods to.
|
|
* @param {...(string|string[])} methodNames The object method names to bind.
|
|
* @returns {Object} Returns `object`.
|
|
* @example
|
|
*
|
|
* var view = {
|
|
* 'label': 'docs',
|
|
* 'click': function() {
|
|
* console.log('clicked ' + this.label);
|
|
* }
|
|
* };
|
|
*
|
|
* _.bindAll(view, ['click']);
|
|
* jQuery(element).on('click', view.click);
|
|
* // => Logs 'clicked docs' when clicked.
|
|
*/
|
|
var bindAll = flatRest(function(object, methodNames) {
|
|
arrayEach(methodNames, function(key) {
|
|
key = toKey(key);
|
|
baseAssignValue(object, key, bind(object[key], object));
|
|
});
|
|
return object;
|
|
});
|
|
|
|
/**
|
|
* Creates a function that iterates over `pairs` and invokes the corresponding
|
|
* function of the first predicate to return truthy. The predicate-function
|
|
* pairs are invoked with the `this` binding and arguments of the created
|
|
* function.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Util
|
|
* @param {Array} pairs The predicate-function pairs.
|
|
* @returns {Function} Returns the new composite function.
|
|
* @example
|
|
*
|
|
* var func = _.cond([
|
|
* [_.matches({ 'a': 1 }), _.constant('matches A')],
|
|
* [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
|
|
* [_.stubTrue, _.constant('no match')]
|
|
* ]);
|
|
*
|
|
* func({ 'a': 1, 'b': 2 });
|
|
* // => 'matches A'
|
|
*
|
|
* func({ 'a': 0, 'b': 1 });
|
|
* // => 'matches B'
|
|
*
|
|
* func({ 'a': '1', 'b': '2' });
|
|
* // => 'no match'
|
|
*/
|
|
function cond(pairs) {
|
|
var length = pairs == null ? 0 : pairs.length,
|
|
toIteratee = getIteratee();
|
|
|
|
pairs = !length ? [] : arrayMap(pairs, function(pair) {
|
|
if (typeof pair[1] != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
return [toIteratee(pair[0]), pair[1]];
|
|
});
|
|
|
|
return baseRest(function(args) {
|
|
var index = -1;
|
|
while (++index < length) {
|
|
var pair = pairs[index];
|
|
if (apply(pair[0], this, args)) {
|
|
return apply(pair[1], this, args);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes the predicate properties of `source` with
|
|
* the corresponding property values of a given object, returning `true` if
|
|
* all predicates return truthy, else `false`.
|
|
*
|
|
* **Note:** The created function is equivalent to `_.conformsTo` with
|
|
* `source` partially applied.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Util
|
|
* @param {Object} source The object of property predicates to conform to.
|
|
* @returns {Function} Returns the new spec function.
|
|
* @example
|
|
*
|
|
* var objects = [
|
|
* { 'a': 2, 'b': 1 },
|
|
* { 'a': 1, 'b': 2 }
|
|
* ];
|
|
*
|
|
* _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
|
|
* // => [{ 'a': 1, 'b': 2 }]
|
|
*/
|
|
function conforms(source) {
|
|
return baseConforms(baseClone(source, CLONE_DEEP_FLAG));
|
|
}
|
|
|
|
/**
|
|
* Creates a function that returns `value`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.4.0
|
|
* @category Util
|
|
* @param {*} value The value to return from the new function.
|
|
* @returns {Function} Returns the new constant function.
|
|
* @example
|
|
*
|
|
* var objects = _.times(2, _.constant({ 'a': 1 }));
|
|
*
|
|
* console.log(objects);
|
|
* // => [{ 'a': 1 }, { 'a': 1 }]
|
|
*
|
|
* console.log(objects[0] === objects[1]);
|
|
* // => true
|
|
*/
|
|
function constant(value) {
|
|
return function() {
|
|
return value;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Checks `value` to determine whether a default value should be returned in
|
|
* its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
|
|
* or `undefined`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.14.0
|
|
* @category Util
|
|
* @param {*} value The value to check.
|
|
* @param {*} defaultValue The default value.
|
|
* @returns {*} Returns the resolved value.
|
|
* @example
|
|
*
|
|
* _.defaultTo(1, 10);
|
|
* // => 1
|
|
*
|
|
* _.defaultTo(undefined, 10);
|
|
* // => 10
|
|
*/
|
|
function defaultTo(value, defaultValue) {
|
|
return (value == null || value !== value) ? defaultValue : value;
|
|
}
|
|
|
|
/**
|
|
* Creates a function that returns the result of invoking the given functions
|
|
* with the `this` binding of the created function, where each successive
|
|
* invocation is supplied the return value of the previous.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Util
|
|
* @param {...(Function|Function[])} [funcs] The functions to invoke.
|
|
* @returns {Function} Returns the new composite function.
|
|
* @see _.flowRight
|
|
* @example
|
|
*
|
|
* function square(n) {
|
|
* return n * n;
|
|
* }
|
|
*
|
|
* var addSquare = _.flow([_.add, square]);
|
|
* addSquare(1, 2);
|
|
* // => 9
|
|
*/
|
|
var flow = createFlow();
|
|
|
|
/**
|
|
* This method is like `_.flow` except that it creates a function that
|
|
* invokes the given functions from right to left.
|
|
*
|
|
* @static
|
|
* @since 3.0.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @param {...(Function|Function[])} [funcs] The functions to invoke.
|
|
* @returns {Function} Returns the new composite function.
|
|
* @see _.flow
|
|
* @example
|
|
*
|
|
* function square(n) {
|
|
* return n * n;
|
|
* }
|
|
*
|
|
* var addSquare = _.flowRight([square, _.add]);
|
|
* addSquare(1, 2);
|
|
* // => 9
|
|
*/
|
|
var flowRight = createFlow(true);
|
|
|
|
/**
|
|
* This method returns the first argument it receives.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @param {*} value Any value.
|
|
* @returns {*} Returns `value`.
|
|
* @example
|
|
*
|
|
* var object = { 'a': 1 };
|
|
*
|
|
* console.log(_.identity(object) === object);
|
|
* // => true
|
|
*/
|
|
function identity(value) {
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with the arguments of the created
|
|
* function. If `func` is a property name, the created function returns the
|
|
* property value for a given element. If `func` is an array or object, the
|
|
* created function returns `true` for elements that contain the equivalent
|
|
* source properties, otherwise it returns `false`.
|
|
*
|
|
* @static
|
|
* @since 4.0.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @param {*} [func=_.identity] The value to convert to a callback.
|
|
* @returns {Function} Returns the callback.
|
|
* @example
|
|
*
|
|
* var users = [
|
|
* { 'user': 'barney', 'age': 36, 'active': true },
|
|
* { 'user': 'fred', 'age': 40, 'active': false }
|
|
* ];
|
|
*
|
|
* // The `_.matches` iteratee shorthand.
|
|
* _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
|
|
* // => [{ 'user': 'barney', 'age': 36, 'active': true }]
|
|
*
|
|
* // The `_.matchesProperty` iteratee shorthand.
|
|
* _.filter(users, _.iteratee(['user', 'fred']));
|
|
* // => [{ 'user': 'fred', 'age': 40 }]
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.map(users, _.iteratee('user'));
|
|
* // => ['barney', 'fred']
|
|
*
|
|
* // Create custom iteratee shorthands.
|
|
* _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
|
|
* return !_.isRegExp(func) ? iteratee(func) : function(string) {
|
|
* return func.test(string);
|
|
* };
|
|
* });
|
|
*
|
|
* _.filter(['abc', 'def'], /ef/);
|
|
* // => ['def']
|
|
*/
|
|
function iteratee(func) {
|
|
return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
|
|
}
|
|
|
|
/**
|
|
* Creates a function that performs a partial deep comparison between a given
|
|
* object and `source`, returning `true` if the given object has equivalent
|
|
* property values, else `false`.
|
|
*
|
|
* **Note:** The created function is equivalent to `_.isMatch` with `source`
|
|
* partially applied.
|
|
*
|
|
* Partial comparisons will match empty array and empty object `source`
|
|
* values against any array or object value, respectively. See `_.isEqual`
|
|
* for a list of supported value comparisons.
|
|
*
|
|
* **Note:** Multiple values can be checked by combining several matchers
|
|
* using `_.overSome`
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Util
|
|
* @param {Object} source The object of property values to match.
|
|
* @returns {Function} Returns the new spec function.
|
|
* @example
|
|
*
|
|
* var objects = [
|
|
* { 'a': 1, 'b': 2, 'c': 3 },
|
|
* { 'a': 4, 'b': 5, 'c': 6 }
|
|
* ];
|
|
*
|
|
* _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
|
|
* // => [{ 'a': 4, 'b': 5, 'c': 6 }]
|
|
*
|
|
* // Checking for several possible values
|
|
* _.filter(users, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })]));
|
|
* // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]
|
|
*/
|
|
function matches(source) {
|
|
return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
|
|
}
|
|
|
|
/**
|
|
* Creates a function that performs a partial deep comparison between the
|
|
* value at `path` of a given object to `srcValue`, returning `true` if the
|
|
* object value is equivalent, else `false`.
|
|
*
|
|
* **Note:** Partial comparisons will match empty array and empty object
|
|
* `srcValue` values against any array or object value, respectively. See
|
|
* `_.isEqual` for a list of supported value comparisons.
|
|
*
|
|
* **Note:** Multiple values can be checked by combining several matchers
|
|
* using `_.overSome`
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.2.0
|
|
* @category Util
|
|
* @param {Array|string} path The path of the property to get.
|
|
* @param {*} srcValue The value to match.
|
|
* @returns {Function} Returns the new spec function.
|
|
* @example
|
|
*
|
|
* var objects = [
|
|
* { 'a': 1, 'b': 2, 'c': 3 },
|
|
* { 'a': 4, 'b': 5, 'c': 6 }
|
|
* ];
|
|
*
|
|
* _.find(objects, _.matchesProperty('a', 4));
|
|
* // => { 'a': 4, 'b': 5, 'c': 6 }
|
|
*
|
|
* // Checking for several possible values
|
|
* _.filter(users, _.overSome([_.matchesProperty('a', 1), _.matchesProperty('a', 4)]));
|
|
* // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]
|
|
*/
|
|
function matchesProperty(path, srcValue) {
|
|
return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes the method at `path` of a given object.
|
|
* Any additional arguments are provided to the invoked method.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.7.0
|
|
* @category Util
|
|
* @param {Array|string} path The path of the method to invoke.
|
|
* @param {...*} [args] The arguments to invoke the method with.
|
|
* @returns {Function} Returns the new invoker function.
|
|
* @example
|
|
*
|
|
* var objects = [
|
|
* { 'a': { 'b': _.constant(2) } },
|
|
* { 'a': { 'b': _.constant(1) } }
|
|
* ];
|
|
*
|
|
* _.map(objects, _.method('a.b'));
|
|
* // => [2, 1]
|
|
*
|
|
* _.map(objects, _.method(['a', 'b']));
|
|
* // => [2, 1]
|
|
*/
|
|
var method = baseRest(function(path, args) {
|
|
return function(object) {
|
|
return baseInvoke(object, path, args);
|
|
};
|
|
});
|
|
|
|
/**
|
|
* The opposite of `_.method`; this method creates a function that invokes
|
|
* the method at a given path of `object`. Any additional arguments are
|
|
* provided to the invoked method.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.7.0
|
|
* @category Util
|
|
* @param {Object} object The object to query.
|
|
* @param {...*} [args] The arguments to invoke the method with.
|
|
* @returns {Function} Returns the new invoker function.
|
|
* @example
|
|
*
|
|
* var array = _.times(3, _.constant),
|
|
* object = { 'a': array, 'b': array, 'c': array };
|
|
*
|
|
* _.map(['a[2]', 'c[0]'], _.methodOf(object));
|
|
* // => [2, 0]
|
|
*
|
|
* _.map([['a', '2'], ['c', '0']], _.methodOf(object));
|
|
* // => [2, 0]
|
|
*/
|
|
var methodOf = baseRest(function(object, args) {
|
|
return function(path) {
|
|
return baseInvoke(object, path, args);
|
|
};
|
|
});
|
|
|
|
/**
|
|
* Adds all own enumerable string keyed function properties of a source
|
|
* object to the destination object. If `object` is a function, then methods
|
|
* are added to its prototype as well.
|
|
*
|
|
* **Note:** Use `_.runInContext` to create a pristine `lodash` function to
|
|
* avoid conflicts caused by modifying the original.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @param {Function|Object} [object=lodash] The destination object.
|
|
* @param {Object} source The object of functions to add.
|
|
* @param {Object} [options={}] The options object.
|
|
* @param {boolean} [options.chain=true] Specify whether mixins are chainable.
|
|
* @returns {Function|Object} Returns `object`.
|
|
* @example
|
|
*
|
|
* function vowels(string) {
|
|
* return _.filter(string, function(v) {
|
|
* return /[aeiou]/i.test(v);
|
|
* });
|
|
* }
|
|
*
|
|
* _.mixin({ 'vowels': vowels });
|
|
* _.vowels('fred');
|
|
* // => ['e']
|
|
*
|
|
* _('fred').vowels().value();
|
|
* // => ['e']
|
|
*
|
|
* _.mixin({ 'vowels': vowels }, { 'chain': false });
|
|
* _('fred').vowels();
|
|
* // => ['e']
|
|
*/
|
|
function mixin(object, source, options) {
|
|
var props = keys(source),
|
|
methodNames = baseFunctions(source, props);
|
|
|
|
if (options == null &&
|
|
!(isObject(source) && (methodNames.length || !props.length))) {
|
|
options = source;
|
|
source = object;
|
|
object = this;
|
|
methodNames = baseFunctions(source, keys(source));
|
|
}
|
|
var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
|
|
isFunc = isFunction(object);
|
|
|
|
arrayEach(methodNames, function(methodName) {
|
|
var func = source[methodName];
|
|
object[methodName] = func;
|
|
if (isFunc) {
|
|
object.prototype[methodName] = function() {
|
|
var chainAll = this.__chain__;
|
|
if (chain || chainAll) {
|
|
var result = object(this.__wrapped__),
|
|
actions = result.__actions__ = copyArray(this.__actions__);
|
|
|
|
actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
|
|
result.__chain__ = chainAll;
|
|
return result;
|
|
}
|
|
return func.apply(object, arrayPush([this.value()], arguments));
|
|
};
|
|
}
|
|
});
|
|
|
|
return object;
|
|
}
|
|
|
|
/**
|
|
* Reverts the `_` variable to its previous value and returns a reference to
|
|
* the `lodash` function.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @returns {Function} Returns the `lodash` function.
|
|
* @example
|
|
*
|
|
* var lodash = _.noConflict();
|
|
*/
|
|
function noConflict() {
|
|
if (root._ === this) {
|
|
root._ = oldDash;
|
|
}
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* This method returns `undefined`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.3.0
|
|
* @category Util
|
|
* @example
|
|
*
|
|
* _.times(2, _.noop);
|
|
* // => [undefined, undefined]
|
|
*/
|
|
function noop() {
|
|
// No operation performed.
|
|
}
|
|
|
|
/**
|
|
* Creates a function that gets the argument at index `n`. If `n` is negative,
|
|
* the nth argument from the end is returned.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Util
|
|
* @param {number} [n=0] The index of the argument to return.
|
|
* @returns {Function} Returns the new pass-thru function.
|
|
* @example
|
|
*
|
|
* var func = _.nthArg(1);
|
|
* func('a', 'b', 'c', 'd');
|
|
* // => 'b'
|
|
*
|
|
* var func = _.nthArg(-2);
|
|
* func('a', 'b', 'c', 'd');
|
|
* // => 'c'
|
|
*/
|
|
function nthArg(n) {
|
|
n = toInteger(n);
|
|
return baseRest(function(args) {
|
|
return baseNth(args, n);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates a function that invokes `iteratees` with the arguments it receives
|
|
* and returns their results.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Util
|
|
* @param {...(Function|Function[])} [iteratees=[_.identity]]
|
|
* The iteratees to invoke.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* var func = _.over([Math.max, Math.min]);
|
|
*
|
|
* func(1, 2, 3, 4);
|
|
* // => [4, 1]
|
|
*/
|
|
var over = createOver(arrayMap);
|
|
|
|
/**
|
|
* Creates a function that checks if **all** of the `predicates` return
|
|
* truthy when invoked with the arguments it receives.
|
|
*
|
|
* Following shorthands are possible for providing predicates.
|
|
* Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.
|
|
* Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Util
|
|
* @param {...(Function|Function[])} [predicates=[_.identity]]
|
|
* The predicates to check.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* var func = _.overEvery([Boolean, isFinite]);
|
|
*
|
|
* func('1');
|
|
* // => true
|
|
*
|
|
* func(null);
|
|
* // => false
|
|
*
|
|
* func(NaN);
|
|
* // => false
|
|
*/
|
|
var overEvery = createOver(arrayEvery);
|
|
|
|
/**
|
|
* Creates a function that checks if **any** of the `predicates` return
|
|
* truthy when invoked with the arguments it receives.
|
|
*
|
|
* Following shorthands are possible for providing predicates.
|
|
* Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.
|
|
* Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Util
|
|
* @param {...(Function|Function[])} [predicates=[_.identity]]
|
|
* The predicates to check.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* var func = _.overSome([Boolean, isFinite]);
|
|
*
|
|
* func('1');
|
|
* // => true
|
|
*
|
|
* func(null);
|
|
* // => true
|
|
*
|
|
* func(NaN);
|
|
* // => false
|
|
*
|
|
* var matchesFunc = _.overSome([{ 'a': 1 }, { 'a': 2 }])
|
|
* var matchesPropertyFunc = _.overSome([['a', 1], ['a', 2]])
|
|
*/
|
|
var overSome = createOver(arraySome);
|
|
|
|
/**
|
|
* Creates a function that returns the value at `path` of a given object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 2.4.0
|
|
* @category Util
|
|
* @param {Array|string} path The path of the property to get.
|
|
* @returns {Function} Returns the new accessor function.
|
|
* @example
|
|
*
|
|
* var objects = [
|
|
* { 'a': { 'b': 2 } },
|
|
* { 'a': { 'b': 1 } }
|
|
* ];
|
|
*
|
|
* _.map(objects, _.property('a.b'));
|
|
* // => [2, 1]
|
|
*
|
|
* _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
|
|
* // => [1, 2]
|
|
*/
|
|
function property(path) {
|
|
return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
|
|
}
|
|
|
|
/**
|
|
* The opposite of `_.property`; this method creates a function that returns
|
|
* the value at a given path of `object`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Util
|
|
* @param {Object} object The object to query.
|
|
* @returns {Function} Returns the new accessor function.
|
|
* @example
|
|
*
|
|
* var array = [0, 1, 2],
|
|
* object = { 'a': array, 'b': array, 'c': array };
|
|
*
|
|
* _.map(['a[2]', 'c[0]'], _.propertyOf(object));
|
|
* // => [2, 0]
|
|
*
|
|
* _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
|
|
* // => [2, 0]
|
|
*/
|
|
function propertyOf(object) {
|
|
return function(path) {
|
|
return object == null ? undefined : baseGet(object, path);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Creates an array of numbers (positive and/or negative) progressing from
|
|
* `start` up to, but not including, `end`. A step of `-1` is used if a negative
|
|
* `start` is specified without an `end` or `step`. If `end` is not specified,
|
|
* it's set to `start` with `start` then set to `0`.
|
|
*
|
|
* **Note:** JavaScript follows the IEEE-754 standard for resolving
|
|
* floating-point values which can produce unexpected results.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @param {number} [start=0] The start of the range.
|
|
* @param {number} end The end of the range.
|
|
* @param {number} [step=1] The value to increment or decrement by.
|
|
* @returns {Array} Returns the range of numbers.
|
|
* @see _.inRange, _.rangeRight
|
|
* @example
|
|
*
|
|
* _.range(4);
|
|
* // => [0, 1, 2, 3]
|
|
*
|
|
* _.range(-4);
|
|
* // => [0, -1, -2, -3]
|
|
*
|
|
* _.range(1, 5);
|
|
* // => [1, 2, 3, 4]
|
|
*
|
|
* _.range(0, 20, 5);
|
|
* // => [0, 5, 10, 15]
|
|
*
|
|
* _.range(0, -4, -1);
|
|
* // => [0, -1, -2, -3]
|
|
*
|
|
* _.range(1, 4, 0);
|
|
* // => [1, 1, 1]
|
|
*
|
|
* _.range(0);
|
|
* // => []
|
|
*/
|
|
var range = createRange();
|
|
|
|
/**
|
|
* This method is like `_.range` except that it populates values in
|
|
* descending order.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Util
|
|
* @param {number} [start=0] The start of the range.
|
|
* @param {number} end The end of the range.
|
|
* @param {number} [step=1] The value to increment or decrement by.
|
|
* @returns {Array} Returns the range of numbers.
|
|
* @see _.inRange, _.range
|
|
* @example
|
|
*
|
|
* _.rangeRight(4);
|
|
* // => [3, 2, 1, 0]
|
|
*
|
|
* _.rangeRight(-4);
|
|
* // => [-3, -2, -1, 0]
|
|
*
|
|
* _.rangeRight(1, 5);
|
|
* // => [4, 3, 2, 1]
|
|
*
|
|
* _.rangeRight(0, 20, 5);
|
|
* // => [15, 10, 5, 0]
|
|
*
|
|
* _.rangeRight(0, -4, -1);
|
|
* // => [-3, -2, -1, 0]
|
|
*
|
|
* _.rangeRight(1, 4, 0);
|
|
* // => [1, 1, 1]
|
|
*
|
|
* _.rangeRight(0);
|
|
* // => []
|
|
*/
|
|
var rangeRight = createRange(true);
|
|
|
|
/**
|
|
* This method returns a new empty array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.13.0
|
|
* @category Util
|
|
* @returns {Array} Returns the new empty array.
|
|
* @example
|
|
*
|
|
* var arrays = _.times(2, _.stubArray);
|
|
*
|
|
* console.log(arrays);
|
|
* // => [[], []]
|
|
*
|
|
* console.log(arrays[0] === arrays[1]);
|
|
* // => false
|
|
*/
|
|
function stubArray() {
|
|
return [];
|
|
}
|
|
|
|
/**
|
|
* This method returns `false`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.13.0
|
|
* @category Util
|
|
* @returns {boolean} Returns `false`.
|
|
* @example
|
|
*
|
|
* _.times(2, _.stubFalse);
|
|
* // => [false, false]
|
|
*/
|
|
function stubFalse() {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* This method returns a new empty object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.13.0
|
|
* @category Util
|
|
* @returns {Object} Returns the new empty object.
|
|
* @example
|
|
*
|
|
* var objects = _.times(2, _.stubObject);
|
|
*
|
|
* console.log(objects);
|
|
* // => [{}, {}]
|
|
*
|
|
* console.log(objects[0] === objects[1]);
|
|
* // => false
|
|
*/
|
|
function stubObject() {
|
|
return {};
|
|
}
|
|
|
|
/**
|
|
* This method returns an empty string.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.13.0
|
|
* @category Util
|
|
* @returns {string} Returns the empty string.
|
|
* @example
|
|
*
|
|
* _.times(2, _.stubString);
|
|
* // => ['', '']
|
|
*/
|
|
function stubString() {
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* This method returns `true`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.13.0
|
|
* @category Util
|
|
* @returns {boolean} Returns `true`.
|
|
* @example
|
|
*
|
|
* _.times(2, _.stubTrue);
|
|
* // => [true, true]
|
|
*/
|
|
function stubTrue() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Invokes the iteratee `n` times, returning an array of the results of
|
|
* each invocation. The iteratee is invoked with one argument; (index).
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @param {number} n The number of times to invoke `iteratee`.
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
* @returns {Array} Returns the array of results.
|
|
* @example
|
|
*
|
|
* _.times(3, String);
|
|
* // => ['0', '1', '2']
|
|
*
|
|
* _.times(4, _.constant(0));
|
|
* // => [0, 0, 0, 0]
|
|
*/
|
|
function times(n, iteratee) {
|
|
n = toInteger(n);
|
|
if (n < 1 || n > MAX_SAFE_INTEGER) {
|
|
return [];
|
|
}
|
|
var index = MAX_ARRAY_LENGTH,
|
|
length = nativeMin(n, MAX_ARRAY_LENGTH);
|
|
|
|
iteratee = getIteratee(iteratee);
|
|
n -= MAX_ARRAY_LENGTH;
|
|
|
|
var result = baseTimes(length, iteratee);
|
|
while (++index < n) {
|
|
iteratee(index);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Converts `value` to a property path array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Util
|
|
* @param {*} value The value to convert.
|
|
* @returns {Array} Returns the new property path array.
|
|
* @example
|
|
*
|
|
* _.toPath('a.b.c');
|
|
* // => ['a', 'b', 'c']
|
|
*
|
|
* _.toPath('a[0].b.c');
|
|
* // => ['a', '0', 'b', 'c']
|
|
*/
|
|
function toPath(value) {
|
|
if (isArray(value)) {
|
|
return arrayMap(value, toKey);
|
|
}
|
|
return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
|
|
}
|
|
|
|
/**
|
|
* Generates a unique ID. If `prefix` is given, the ID is appended to it.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Util
|
|
* @param {string} [prefix=''] The value to prefix the ID with.
|
|
* @returns {string} Returns the unique ID.
|
|
* @example
|
|
*
|
|
* _.uniqueId('contact_');
|
|
* // => 'contact_104'
|
|
*
|
|
* _.uniqueId();
|
|
* // => '105'
|
|
*/
|
|
function uniqueId(prefix) {
|
|
var id = ++idCounter;
|
|
return toString(prefix) + id;
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Adds two numbers.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.4.0
|
|
* @category Math
|
|
* @param {number} augend The first number in an addition.
|
|
* @param {number} addend The second number in an addition.
|
|
* @returns {number} Returns the total.
|
|
* @example
|
|
*
|
|
* _.add(6, 4);
|
|
* // => 10
|
|
*/
|
|
var add = createMathOperation(function(augend, addend) {
|
|
return augend + addend;
|
|
}, 0);
|
|
|
|
/**
|
|
* Computes `number` rounded up to `precision`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.10.0
|
|
* @category Math
|
|
* @param {number} number The number to round up.
|
|
* @param {number} [precision=0] The precision to round up to.
|
|
* @returns {number} Returns the rounded up number.
|
|
* @example
|
|
*
|
|
* _.ceil(4.006);
|
|
* // => 5
|
|
*
|
|
* _.ceil(6.004, 2);
|
|
* // => 6.01
|
|
*
|
|
* _.ceil(6040, -2);
|
|
* // => 6100
|
|
*/
|
|
var ceil = createRound('ceil');
|
|
|
|
/**
|
|
* Divide two numbers.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.7.0
|
|
* @category Math
|
|
* @param {number} dividend The first number in a division.
|
|
* @param {number} divisor The second number in a division.
|
|
* @returns {number} Returns the quotient.
|
|
* @example
|
|
*
|
|
* _.divide(6, 4);
|
|
* // => 1.5
|
|
*/
|
|
var divide = createMathOperation(function(dividend, divisor) {
|
|
return dividend / divisor;
|
|
}, 1);
|
|
|
|
/**
|
|
* Computes `number` rounded down to `precision`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.10.0
|
|
* @category Math
|
|
* @param {number} number The number to round down.
|
|
* @param {number} [precision=0] The precision to round down to.
|
|
* @returns {number} Returns the rounded down number.
|
|
* @example
|
|
*
|
|
* _.floor(4.006);
|
|
* // => 4
|
|
*
|
|
* _.floor(0.046, 2);
|
|
* // => 0.04
|
|
*
|
|
* _.floor(4060, -2);
|
|
* // => 4000
|
|
*/
|
|
var floor = createRound('floor');
|
|
|
|
/**
|
|
* Computes the maximum value of `array`. If `array` is empty or falsey,
|
|
* `undefined` is returned.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Math
|
|
* @param {Array} array The array to iterate over.
|
|
* @returns {*} Returns the maximum value.
|
|
* @example
|
|
*
|
|
* _.max([4, 2, 8, 6]);
|
|
* // => 8
|
|
*
|
|
* _.max([]);
|
|
* // => undefined
|
|
*/
|
|
function max(array) {
|
|
return (array && array.length)
|
|
? baseExtremum(array, identity, baseGt)
|
|
: undefined;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.max` except that it accepts `iteratee` which is
|
|
* invoked for each element in `array` to generate the criterion by which
|
|
* the value is ranked. The iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Math
|
|
* @param {Array} array The array to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {*} Returns the maximum value.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'n': 1 }, { 'n': 2 }];
|
|
*
|
|
* _.maxBy(objects, function(o) { return o.n; });
|
|
* // => { 'n': 2 }
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.maxBy(objects, 'n');
|
|
* // => { 'n': 2 }
|
|
*/
|
|
function maxBy(array, iteratee) {
|
|
return (array && array.length)
|
|
? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
|
|
: undefined;
|
|
}
|
|
|
|
/**
|
|
* Computes the mean of the values in `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Math
|
|
* @param {Array} array The array to iterate over.
|
|
* @returns {number} Returns the mean.
|
|
* @example
|
|
*
|
|
* _.mean([4, 2, 8, 6]);
|
|
* // => 5
|
|
*/
|
|
function mean(array) {
|
|
return baseMean(array, identity);
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.mean` except that it accepts `iteratee` which is
|
|
* invoked for each element in `array` to generate the value to be averaged.
|
|
* The iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.7.0
|
|
* @category Math
|
|
* @param {Array} array The array to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {number} Returns the mean.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
|
|
*
|
|
* _.meanBy(objects, function(o) { return o.n; });
|
|
* // => 5
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.meanBy(objects, 'n');
|
|
* // => 5
|
|
*/
|
|
function meanBy(array, iteratee) {
|
|
return baseMean(array, getIteratee(iteratee, 2));
|
|
}
|
|
|
|
/**
|
|
* Computes the minimum value of `array`. If `array` is empty or falsey,
|
|
* `undefined` is returned.
|
|
*
|
|
* @static
|
|
* @since 0.1.0
|
|
* @memberOf _
|
|
* @category Math
|
|
* @param {Array} array The array to iterate over.
|
|
* @returns {*} Returns the minimum value.
|
|
* @example
|
|
*
|
|
* _.min([4, 2, 8, 6]);
|
|
* // => 2
|
|
*
|
|
* _.min([]);
|
|
* // => undefined
|
|
*/
|
|
function min(array) {
|
|
return (array && array.length)
|
|
? baseExtremum(array, identity, baseLt)
|
|
: undefined;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.min` except that it accepts `iteratee` which is
|
|
* invoked for each element in `array` to generate the criterion by which
|
|
* the value is ranked. The iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Math
|
|
* @param {Array} array The array to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {*} Returns the minimum value.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'n': 1 }, { 'n': 2 }];
|
|
*
|
|
* _.minBy(objects, function(o) { return o.n; });
|
|
* // => { 'n': 1 }
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.minBy(objects, 'n');
|
|
* // => { 'n': 1 }
|
|
*/
|
|
function minBy(array, iteratee) {
|
|
return (array && array.length)
|
|
? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
|
|
: undefined;
|
|
}
|
|
|
|
/**
|
|
* Multiply two numbers.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.7.0
|
|
* @category Math
|
|
* @param {number} multiplier The first number in a multiplication.
|
|
* @param {number} multiplicand The second number in a multiplication.
|
|
* @returns {number} Returns the product.
|
|
* @example
|
|
*
|
|
* _.multiply(6, 4);
|
|
* // => 24
|
|
*/
|
|
var multiply = createMathOperation(function(multiplier, multiplicand) {
|
|
return multiplier * multiplicand;
|
|
}, 1);
|
|
|
|
/**
|
|
* Computes `number` rounded to `precision`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.10.0
|
|
* @category Math
|
|
* @param {number} number The number to round.
|
|
* @param {number} [precision=0] The precision to round to.
|
|
* @returns {number} Returns the rounded number.
|
|
* @example
|
|
*
|
|
* _.round(4.006);
|
|
* // => 4
|
|
*
|
|
* _.round(4.006, 2);
|
|
* // => 4.01
|
|
*
|
|
* _.round(4060, -2);
|
|
* // => 4100
|
|
*/
|
|
var round = createRound('round');
|
|
|
|
/**
|
|
* Subtract two numbers.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Math
|
|
* @param {number} minuend The first number in a subtraction.
|
|
* @param {number} subtrahend The second number in a subtraction.
|
|
* @returns {number} Returns the difference.
|
|
* @example
|
|
*
|
|
* _.subtract(6, 4);
|
|
* // => 2
|
|
*/
|
|
var subtract = createMathOperation(function(minuend, subtrahend) {
|
|
return minuend - subtrahend;
|
|
}, 0);
|
|
|
|
/**
|
|
* Computes the sum of the values in `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.4.0
|
|
* @category Math
|
|
* @param {Array} array The array to iterate over.
|
|
* @returns {number} Returns the sum.
|
|
* @example
|
|
*
|
|
* _.sum([4, 2, 8, 6]);
|
|
* // => 20
|
|
*/
|
|
function sum(array) {
|
|
return (array && array.length)
|
|
? baseSum(array, identity)
|
|
: 0;
|
|
}
|
|
|
|
/**
|
|
* This method is like `_.sum` except that it accepts `iteratee` which is
|
|
* invoked for each element in `array` to generate the value to be summed.
|
|
* The iteratee is invoked with one argument: (value).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Math
|
|
* @param {Array} array The array to iterate over.
|
|
* @param {Function} [iteratee=_.identity] The iteratee invoked per element.
|
|
* @returns {number} Returns the sum.
|
|
* @example
|
|
*
|
|
* var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
|
|
*
|
|
* _.sumBy(objects, function(o) { return o.n; });
|
|
* // => 20
|
|
*
|
|
* // The `_.property` iteratee shorthand.
|
|
* _.sumBy(objects, 'n');
|
|
* // => 20
|
|
*/
|
|
function sumBy(array, iteratee) {
|
|
return (array && array.length)
|
|
? baseSum(array, getIteratee(iteratee, 2))
|
|
: 0;
|
|
}
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
// Add methods that return wrapped values in chain sequences.
|
|
lodash.after = after;
|
|
lodash.ary = ary;
|
|
lodash.assign = assign;
|
|
lodash.assignIn = assignIn;
|
|
lodash.assignInWith = assignInWith;
|
|
lodash.assignWith = assignWith;
|
|
lodash.at = at;
|
|
lodash.before = before;
|
|
lodash.bind = bind;
|
|
lodash.bindAll = bindAll;
|
|
lodash.bindKey = bindKey;
|
|
lodash.castArray = castArray;
|
|
lodash.chain = chain;
|
|
lodash.chunk = chunk;
|
|
lodash.compact = compact;
|
|
lodash.concat = concat;
|
|
lodash.cond = cond;
|
|
lodash.conforms = conforms;
|
|
lodash.constant = constant;
|
|
lodash.countBy = countBy;
|
|
lodash.create = create;
|
|
lodash.curry = curry;
|
|
lodash.curryRight = curryRight;
|
|
lodash.debounce = debounce;
|
|
lodash.defaults = defaults;
|
|
lodash.defaultsDeep = defaultsDeep;
|
|
lodash.defer = defer;
|
|
lodash.delay = delay;
|
|
lodash.difference = difference;
|
|
lodash.differenceBy = differenceBy;
|
|
lodash.differenceWith = differenceWith;
|
|
lodash.drop = drop;
|
|
lodash.dropRight = dropRight;
|
|
lodash.dropRightWhile = dropRightWhile;
|
|
lodash.dropWhile = dropWhile;
|
|
lodash.fill = fill;
|
|
lodash.filter = filter;
|
|
lodash.flatMap = flatMap;
|
|
lodash.flatMapDeep = flatMapDeep;
|
|
lodash.flatMapDepth = flatMapDepth;
|
|
lodash.flatten = flatten;
|
|
lodash.flattenDeep = flattenDeep;
|
|
lodash.flattenDepth = flattenDepth;
|
|
lodash.flip = flip;
|
|
lodash.flow = flow;
|
|
lodash.flowRight = flowRight;
|
|
lodash.fromPairs = fromPairs;
|
|
lodash.functions = functions;
|
|
lodash.functionsIn = functionsIn;
|
|
lodash.groupBy = groupBy;
|
|
lodash.initial = initial;
|
|
lodash.intersection = intersection;
|
|
lodash.intersectionBy = intersectionBy;
|
|
lodash.intersectionWith = intersectionWith;
|
|
lodash.invert = invert;
|
|
lodash.invertBy = invertBy;
|
|
lodash.invokeMap = invokeMap;
|
|
lodash.iteratee = iteratee;
|
|
lodash.keyBy = keyBy;
|
|
lodash.keys = keys;
|
|
lodash.keysIn = keysIn;
|
|
lodash.map = map;
|
|
lodash.mapKeys = mapKeys;
|
|
lodash.mapValues = mapValues;
|
|
lodash.matches = matches;
|
|
lodash.matchesProperty = matchesProperty;
|
|
lodash.memoize = memoize;
|
|
lodash.merge = merge;
|
|
lodash.mergeWith = mergeWith;
|
|
lodash.method = method;
|
|
lodash.methodOf = methodOf;
|
|
lodash.mixin = mixin;
|
|
lodash.negate = negate;
|
|
lodash.nthArg = nthArg;
|
|
lodash.omit = omit;
|
|
lodash.omitBy = omitBy;
|
|
lodash.once = once;
|
|
lodash.orderBy = orderBy;
|
|
lodash.over = over;
|
|
lodash.overArgs = overArgs;
|
|
lodash.overEvery = overEvery;
|
|
lodash.overSome = overSome;
|
|
lodash.partial = partial;
|
|
lodash.partialRight = partialRight;
|
|
lodash.partition = partition;
|
|
lodash.pick = pick;
|
|
lodash.pickBy = pickBy;
|
|
lodash.property = property;
|
|
lodash.propertyOf = propertyOf;
|
|
lodash.pull = pull;
|
|
lodash.pullAll = pullAll;
|
|
lodash.pullAllBy = pullAllBy;
|
|
lodash.pullAllWith = pullAllWith;
|
|
lodash.pullAt = pullAt;
|
|
lodash.range = range;
|
|
lodash.rangeRight = rangeRight;
|
|
lodash.rearg = rearg;
|
|
lodash.reject = reject;
|
|
lodash.remove = remove;
|
|
lodash.rest = rest;
|
|
lodash.reverse = reverse;
|
|
lodash.sampleSize = sampleSize;
|
|
lodash.set = set;
|
|
lodash.setWith = setWith;
|
|
lodash.shuffle = shuffle;
|
|
lodash.slice = slice;
|
|
lodash.sortBy = sortBy;
|
|
lodash.sortedUniq = sortedUniq;
|
|
lodash.sortedUniqBy = sortedUniqBy;
|
|
lodash.split = split;
|
|
lodash.spread = spread;
|
|
lodash.tail = tail;
|
|
lodash.take = take;
|
|
lodash.takeRight = takeRight;
|
|
lodash.takeRightWhile = takeRightWhile;
|
|
lodash.takeWhile = takeWhile;
|
|
lodash.tap = tap;
|
|
lodash.throttle = throttle;
|
|
lodash.thru = thru;
|
|
lodash.toArray = toArray;
|
|
lodash.toPairs = toPairs;
|
|
lodash.toPairsIn = toPairsIn;
|
|
lodash.toPath = toPath;
|
|
lodash.toPlainObject = toPlainObject;
|
|
lodash.transform = transform;
|
|
lodash.unary = unary;
|
|
lodash.union = union;
|
|
lodash.unionBy = unionBy;
|
|
lodash.unionWith = unionWith;
|
|
lodash.uniq = uniq;
|
|
lodash.uniqBy = uniqBy;
|
|
lodash.uniqWith = uniqWith;
|
|
lodash.unset = unset;
|
|
lodash.unzip = unzip;
|
|
lodash.unzipWith = unzipWith;
|
|
lodash.update = update;
|
|
lodash.updateWith = updateWith;
|
|
lodash.values = values;
|
|
lodash.valuesIn = valuesIn;
|
|
lodash.without = without;
|
|
lodash.words = words;
|
|
lodash.wrap = wrap;
|
|
lodash.xor = xor;
|
|
lodash.xorBy = xorBy;
|
|
lodash.xorWith = xorWith;
|
|
lodash.zip = zip;
|
|
lodash.zipObject = zipObject;
|
|
lodash.zipObjectDeep = zipObjectDeep;
|
|
lodash.zipWith = zipWith;
|
|
|
|
// Add aliases.
|
|
lodash.entries = toPairs;
|
|
lodash.entriesIn = toPairsIn;
|
|
lodash.extend = assignIn;
|
|
lodash.extendWith = assignInWith;
|
|
|
|
// Add methods to `lodash.prototype`.
|
|
mixin(lodash, lodash);
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
// Add methods that return unwrapped values in chain sequences.
|
|
lodash.add = add;
|
|
lodash.attempt = attempt;
|
|
lodash.camelCase = camelCase;
|
|
lodash.capitalize = capitalize;
|
|
lodash.ceil = ceil;
|
|
lodash.clamp = clamp;
|
|
lodash.clone = clone;
|
|
lodash.cloneDeep = cloneDeep;
|
|
lodash.cloneDeepWith = cloneDeepWith;
|
|
lodash.cloneWith = cloneWith;
|
|
lodash.conformsTo = conformsTo;
|
|
lodash.deburr = deburr;
|
|
lodash.defaultTo = defaultTo;
|
|
lodash.divide = divide;
|
|
lodash.endsWith = endsWith;
|
|
lodash.eq = eq;
|
|
lodash.escape = escape;
|
|
lodash.escapeRegExp = escapeRegExp;
|
|
lodash.every = every;
|
|
lodash.find = find;
|
|
lodash.findIndex = findIndex;
|
|
lodash.findKey = findKey;
|
|
lodash.findLast = findLast;
|
|
lodash.findLastIndex = findLastIndex;
|
|
lodash.findLastKey = findLastKey;
|
|
lodash.floor = floor;
|
|
lodash.forEach = forEach;
|
|
lodash.forEachRight = forEachRight;
|
|
lodash.forIn = forIn;
|
|
lodash.forInRight = forInRight;
|
|
lodash.forOwn = forOwn;
|
|
lodash.forOwnRight = forOwnRight;
|
|
lodash.get = get;
|
|
lodash.gt = gt;
|
|
lodash.gte = gte;
|
|
lodash.has = has;
|
|
lodash.hasIn = hasIn;
|
|
lodash.head = head;
|
|
lodash.identity = identity;
|
|
lodash.includes = includes;
|
|
lodash.indexOf = indexOf;
|
|
lodash.inRange = inRange;
|
|
lodash.invoke = invoke;
|
|
lodash.isArguments = isArguments;
|
|
lodash.isArray = isArray;
|
|
lodash.isArrayBuffer = isArrayBuffer;
|
|
lodash.isArrayLike = isArrayLike;
|
|
lodash.isArrayLikeObject = isArrayLikeObject;
|
|
lodash.isBoolean = isBoolean;
|
|
lodash.isBuffer = isBuffer;
|
|
lodash.isDate = isDate;
|
|
lodash.isElement = isElement;
|
|
lodash.isEmpty = isEmpty;
|
|
lodash.isEqual = isEqual;
|
|
lodash.isEqualWith = isEqualWith;
|
|
lodash.isError = isError;
|
|
lodash.isFinite = isFinite;
|
|
lodash.isFunction = isFunction;
|
|
lodash.isInteger = isInteger;
|
|
lodash.isLength = isLength;
|
|
lodash.isMap = isMap;
|
|
lodash.isMatch = isMatch;
|
|
lodash.isMatchWith = isMatchWith;
|
|
lodash.isNaN = isNaN;
|
|
lodash.isNative = isNative;
|
|
lodash.isNil = isNil;
|
|
lodash.isNull = isNull;
|
|
lodash.isNumber = isNumber;
|
|
lodash.isObject = isObject;
|
|
lodash.isObjectLike = isObjectLike;
|
|
lodash.isPlainObject = isPlainObject;
|
|
lodash.isRegExp = isRegExp;
|
|
lodash.isSafeInteger = isSafeInteger;
|
|
lodash.isSet = isSet;
|
|
lodash.isString = isString;
|
|
lodash.isSymbol = isSymbol;
|
|
lodash.isTypedArray = isTypedArray;
|
|
lodash.isUndefined = isUndefined;
|
|
lodash.isWeakMap = isWeakMap;
|
|
lodash.isWeakSet = isWeakSet;
|
|
lodash.join = join;
|
|
lodash.kebabCase = kebabCase;
|
|
lodash.last = last;
|
|
lodash.lastIndexOf = lastIndexOf;
|
|
lodash.lowerCase = lowerCase;
|
|
lodash.lowerFirst = lowerFirst;
|
|
lodash.lt = lt;
|
|
lodash.lte = lte;
|
|
lodash.max = max;
|
|
lodash.maxBy = maxBy;
|
|
lodash.mean = mean;
|
|
lodash.meanBy = meanBy;
|
|
lodash.min = min;
|
|
lodash.minBy = minBy;
|
|
lodash.stubArray = stubArray;
|
|
lodash.stubFalse = stubFalse;
|
|
lodash.stubObject = stubObject;
|
|
lodash.stubString = stubString;
|
|
lodash.stubTrue = stubTrue;
|
|
lodash.multiply = multiply;
|
|
lodash.nth = nth;
|
|
lodash.noConflict = noConflict;
|
|
lodash.noop = noop;
|
|
lodash.now = now;
|
|
lodash.pad = pad;
|
|
lodash.padEnd = padEnd;
|
|
lodash.padStart = padStart;
|
|
lodash.parseInt = parseInt;
|
|
lodash.random = random;
|
|
lodash.reduce = reduce;
|
|
lodash.reduceRight = reduceRight;
|
|
lodash.repeat = repeat;
|
|
lodash.replace = replace;
|
|
lodash.result = result;
|
|
lodash.round = round;
|
|
lodash.runInContext = runInContext;
|
|
lodash.sample = sample;
|
|
lodash.size = size;
|
|
lodash.snakeCase = snakeCase;
|
|
lodash.some = some;
|
|
lodash.sortedIndex = sortedIndex;
|
|
lodash.sortedIndexBy = sortedIndexBy;
|
|
lodash.sortedIndexOf = sortedIndexOf;
|
|
lodash.sortedLastIndex = sortedLastIndex;
|
|
lodash.sortedLastIndexBy = sortedLastIndexBy;
|
|
lodash.sortedLastIndexOf = sortedLastIndexOf;
|
|
lodash.startCase = startCase;
|
|
lodash.startsWith = startsWith;
|
|
lodash.subtract = subtract;
|
|
lodash.sum = sum;
|
|
lodash.sumBy = sumBy;
|
|
lodash.template = template;
|
|
lodash.times = times;
|
|
lodash.toFinite = toFinite;
|
|
lodash.toInteger = toInteger;
|
|
lodash.toLength = toLength;
|
|
lodash.toLower = toLower;
|
|
lodash.toNumber = toNumber;
|
|
lodash.toSafeInteger = toSafeInteger;
|
|
lodash.toString = toString;
|
|
lodash.toUpper = toUpper;
|
|
lodash.trim = trim;
|
|
lodash.trimEnd = trimEnd;
|
|
lodash.trimStart = trimStart;
|
|
lodash.truncate = truncate;
|
|
lodash.unescape = unescape;
|
|
lodash.uniqueId = uniqueId;
|
|
lodash.upperCase = upperCase;
|
|
lodash.upperFirst = upperFirst;
|
|
|
|
// Add aliases.
|
|
lodash.each = forEach;
|
|
lodash.eachRight = forEachRight;
|
|
lodash.first = head;
|
|
|
|
mixin(lodash, (function() {
|
|
var source = {};
|
|
baseForOwn(lodash, function(func, methodName) {
|
|
if (!hasOwnProperty.call(lodash.prototype, methodName)) {
|
|
source[methodName] = func;
|
|
}
|
|
});
|
|
return source;
|
|
}()), { 'chain': false });
|
|
|
|
/*------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* The semantic version number.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @type {string}
|
|
*/
|
|
lodash.VERSION = VERSION;
|
|
|
|
// Assign default placeholders.
|
|
arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
|
|
lodash[methodName].placeholder = lodash;
|
|
});
|
|
|
|
// Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
|
|
arrayEach(['drop', 'take'], function(methodName, index) {
|
|
LazyWrapper.prototype[methodName] = function(n) {
|
|
n = n === undefined ? 1 : nativeMax(toInteger(n), 0);
|
|
|
|
var result = (this.__filtered__ && !index)
|
|
? new LazyWrapper(this)
|
|
: this.clone();
|
|
|
|
if (result.__filtered__) {
|
|
result.__takeCount__ = nativeMin(n, result.__takeCount__);
|
|
} else {
|
|
result.__views__.push({
|
|
'size': nativeMin(n, MAX_ARRAY_LENGTH),
|
|
'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
LazyWrapper.prototype[methodName + 'Right'] = function(n) {
|
|
return this.reverse()[methodName](n).reverse();
|
|
};
|
|
});
|
|
|
|
// Add `LazyWrapper` methods that accept an `iteratee` value.
|
|
arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
|
|
var type = index + 1,
|
|
isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;
|
|
|
|
LazyWrapper.prototype[methodName] = function(iteratee) {
|
|
var result = this.clone();
|
|
result.__iteratees__.push({
|
|
'iteratee': getIteratee(iteratee, 3),
|
|
'type': type
|
|
});
|
|
result.__filtered__ = result.__filtered__ || isFilter;
|
|
return result;
|
|
};
|
|
});
|
|
|
|
// Add `LazyWrapper` methods for `_.head` and `_.last`.
|
|
arrayEach(['head', 'last'], function(methodName, index) {
|
|
var takeName = 'take' + (index ? 'Right' : '');
|
|
|
|
LazyWrapper.prototype[methodName] = function() {
|
|
return this[takeName](1).value()[0];
|
|
};
|
|
});
|
|
|
|
// Add `LazyWrapper` methods for `_.initial` and `_.tail`.
|
|
arrayEach(['initial', 'tail'], function(methodName, index) {
|
|
var dropName = 'drop' + (index ? '' : 'Right');
|
|
|
|
LazyWrapper.prototype[methodName] = function() {
|
|
return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
|
|
};
|
|
});
|
|
|
|
LazyWrapper.prototype.compact = function() {
|
|
return this.filter(identity);
|
|
};
|
|
|
|
LazyWrapper.prototype.find = function(predicate) {
|
|
return this.filter(predicate).head();
|
|
};
|
|
|
|
LazyWrapper.prototype.findLast = function(predicate) {
|
|
return this.reverse().find(predicate);
|
|
};
|
|
|
|
LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
|
|
if (typeof path == 'function') {
|
|
return new LazyWrapper(this);
|
|
}
|
|
return this.map(function(value) {
|
|
return baseInvoke(value, path, args);
|
|
});
|
|
});
|
|
|
|
LazyWrapper.prototype.reject = function(predicate) {
|
|
return this.filter(negate(getIteratee(predicate)));
|
|
};
|
|
|
|
LazyWrapper.prototype.slice = function(start, end) {
|
|
start = toInteger(start);
|
|
|
|
var result = this;
|
|
if (result.__filtered__ && (start > 0 || end < 0)) {
|
|
return new LazyWrapper(result);
|
|
}
|
|
if (start < 0) {
|
|
result = result.takeRight(-start);
|
|
} else if (start) {
|
|
result = result.drop(start);
|
|
}
|
|
if (end !== undefined) {
|
|
end = toInteger(end);
|
|
result = end < 0 ? result.dropRight(-end) : result.take(end - start);
|
|
}
|
|
return result;
|
|
};
|
|
|
|
LazyWrapper.prototype.takeRightWhile = function(predicate) {
|
|
return this.reverse().takeWhile(predicate).reverse();
|
|
};
|
|
|
|
LazyWrapper.prototype.toArray = function() {
|
|
return this.take(MAX_ARRAY_LENGTH);
|
|
};
|
|
|
|
// Add `LazyWrapper` methods to `lodash.prototype`.
|
|
baseForOwn(LazyWrapper.prototype, function(func, methodName) {
|
|
var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
|
|
isTaker = /^(?:head|last)$/.test(methodName),
|
|
lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
|
|
retUnwrapped = isTaker || /^find/.test(methodName);
|
|
|
|
if (!lodashFunc) {
|
|
return;
|
|
}
|
|
lodash.prototype[methodName] = function() {
|
|
var value = this.__wrapped__,
|
|
args = isTaker ? [1] : arguments,
|
|
isLazy = value instanceof LazyWrapper,
|
|
iteratee = args[0],
|
|
useLazy = isLazy || isArray(value);
|
|
|
|
var interceptor = function(value) {
|
|
var result = lodashFunc.apply(lodash, arrayPush([value], args));
|
|
return (isTaker && chainAll) ? result[0] : result;
|
|
};
|
|
|
|
if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
|
|
// Avoid lazy use if the iteratee has a "length" value other than `1`.
|
|
isLazy = useLazy = false;
|
|
}
|
|
var chainAll = this.__chain__,
|
|
isHybrid = !!this.__actions__.length,
|
|
isUnwrapped = retUnwrapped && !chainAll,
|
|
onlyLazy = isLazy && !isHybrid;
|
|
|
|
if (!retUnwrapped && useLazy) {
|
|
value = onlyLazy ? value : new LazyWrapper(this);
|
|
var result = func.apply(value, args);
|
|
result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
|
|
return new LodashWrapper(result, chainAll);
|
|
}
|
|
if (isUnwrapped && onlyLazy) {
|
|
return func.apply(this, args);
|
|
}
|
|
result = this.thru(interceptor);
|
|
return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
|
|
};
|
|
});
|
|
|
|
// Add `Array` methods to `lodash.prototype`.
|
|
arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
|
|
var func = arrayProto[methodName],
|
|
chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
|
|
retUnwrapped = /^(?:pop|shift)$/.test(methodName);
|
|
|
|
lodash.prototype[methodName] = function() {
|
|
var args = arguments;
|
|
if (retUnwrapped && !this.__chain__) {
|
|
var value = this.value();
|
|
return func.apply(isArray(value) ? value : [], args);
|
|
}
|
|
return this[chainName](function(value) {
|
|
return func.apply(isArray(value) ? value : [], args);
|
|
});
|
|
};
|
|
});
|
|
|
|
// Map minified method names to their real names.
|
|
baseForOwn(LazyWrapper.prototype, function(func, methodName) {
|
|
var lodashFunc = lodash[methodName];
|
|
if (lodashFunc) {
|
|
var key = lodashFunc.name + '';
|
|
if (!hasOwnProperty.call(realNames, key)) {
|
|
realNames[key] = [];
|
|
}
|
|
realNames[key].push({ 'name': methodName, 'func': lodashFunc });
|
|
}
|
|
});
|
|
|
|
realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{
|
|
'name': 'wrapper',
|
|
'func': undefined
|
|
}];
|
|
|
|
// Add methods to `LazyWrapper`.
|
|
LazyWrapper.prototype.clone = lazyClone;
|
|
LazyWrapper.prototype.reverse = lazyReverse;
|
|
LazyWrapper.prototype.value = lazyValue;
|
|
|
|
// Add chain sequence methods to the `lodash` wrapper.
|
|
lodash.prototype.at = wrapperAt;
|
|
lodash.prototype.chain = wrapperChain;
|
|
lodash.prototype.commit = wrapperCommit;
|
|
lodash.prototype.next = wrapperNext;
|
|
lodash.prototype.plant = wrapperPlant;
|
|
lodash.prototype.reverse = wrapperReverse;
|
|
lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
|
|
|
|
// Add lazy aliases.
|
|
lodash.prototype.first = lodash.prototype.head;
|
|
|
|
if (symIterator) {
|
|
lodash.prototype[symIterator] = wrapperToIterator;
|
|
}
|
|
return lodash;
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
// Export lodash.
|
|
var _ = runInContext();
|
|
|
|
// Some AMD build optimizers, like r.js, check for condition patterns like:
|
|
if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
|
|
// Expose Lodash on the global object to prevent errors when Lodash is
|
|
// loaded by a script tag in the presence of an AMD loader.
|
|
// See http://requirejs.org/docs/errors.html#mismatch for more details.
|
|
// Use `_.noConflict` to remove Lodash from the global object.
|
|
root._ = _;
|
|
|
|
// Define as an anonymous module so, through path mapping, it can be
|
|
// referenced as the "underscore" module.
|
|
define(function() {
|
|
return _;
|
|
});
|
|
}
|
|
// Check for `exports` after `define` in case a build optimizer adds it.
|
|
else if (freeModule) {
|
|
// Export for Node.js.
|
|
(freeModule.exports = _)._ = _;
|
|
// Export for CommonJS support.
|
|
freeExports._ = _;
|
|
}
|
|
else {
|
|
// Export to the global object.
|
|
root._ = _;
|
|
}
|
|
}.call(this));
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{}],40:[function(require,module,exports){
|
|
/**
|
|
* pretty-data - nodejs plugin to pretty-print or minify data in XML, JSON and CSS formats.
|
|
*
|
|
* Version - 0.40.0
|
|
* Copyright (c) 2012 Vadim Kiryukhin
|
|
* vkiryukhin @ gmail.com
|
|
* http://www.eslinstructor.net/pretty-data/
|
|
*
|
|
* Dual licensed under the MIT and GPL licenses:
|
|
* http://www.opensource.org/licenses/mit-license.php
|
|
* http://www.gnu.org/licenses/gpl.html
|
|
*
|
|
* pd.xml(data ) - pretty print XML;
|
|
* pd.json(data) - pretty print JSON;
|
|
* pd.css(data ) - pretty print CSS;
|
|
* pd.sql(data) - pretty print SQL;
|
|
*
|
|
* pd.xmlmin(data [, preserveComments] ) - minify XML;
|
|
* pd.jsonmin(data) - minify JSON;
|
|
* pd.cssmin(data [, preserveComments] ) - minify CSS;
|
|
* pd.sqlmin(data) - minify SQL;
|
|
*
|
|
* PARAMETERS:
|
|
*
|
|
* @data - String; XML, JSON, CSS or SQL text to beautify;
|
|
* @preserveComments - Bool (optional, used in minxml and mincss only);
|
|
* Set this flag to true to prevent removing comments from @text;
|
|
* @Return - String;
|
|
*
|
|
* USAGE:
|
|
*
|
|
* var pd = require('pretty-data').pd;
|
|
*
|
|
* var xml_pp = pd.xml(xml_text);
|
|
* var xml_min = pd.xmlmin(xml_text [,true]);
|
|
* var json_pp = pd.json(json_text);
|
|
* var json_min = pd.jsonmin(json_text);
|
|
* var css_pp = pd.css(css_text);
|
|
* var css_min = pd.cssmin(css_text [, true]);
|
|
* var sql_pp = pd.sql(sql_text);
|
|
* var sql_min = pd.sqlmin(sql_text);
|
|
*
|
|
* TEST:
|
|
* comp-name:pretty-data$ node ./test/test_xml
|
|
* comp-name:pretty-data$ node ./test/test_json
|
|
* comp-name:pretty-data$ node ./test/test_css
|
|
* comp-name:pretty-data$ node ./test/test_sql
|
|
*/
|
|
|
|
|
|
function pp() {
|
|
this.shift = ['\n']; // array of shifts
|
|
this.step = ' ', // 2 spaces
|
|
maxdeep = 100, // nesting level
|
|
ix = 0;
|
|
|
|
// initialize array with shifts //
|
|
for(ix=0;ix<maxdeep;ix++){
|
|
this.shift.push(this.shift[ix]+this.step);
|
|
}
|
|
|
|
};
|
|
|
|
// ----------------------- XML section ----------------------------------------------------
|
|
|
|
pp.prototype.xml = function(text) {
|
|
|
|
var ar = text.replace(/>\s{0,}</g,"><")
|
|
.replace(/</g,"~::~<")
|
|
.replace(/xmlns\:/g,"~::~xmlns:")
|
|
.replace(/xmlns\=/g,"~::~xmlns=")
|
|
.split('~::~'),
|
|
len = ar.length,
|
|
inComment = false,
|
|
deep = 0,
|
|
str = '',
|
|
ix = 0;
|
|
|
|
for(ix=0;ix<len;ix++) {
|
|
// start comment or <![CDATA[...]]> or <!DOCTYPE //
|
|
if(ar[ix].search(/<!/) > -1) {
|
|
str += this.shift[deep]+ar[ix];
|
|
inComment = true;
|
|
// end comment or <![CDATA[...]]> //
|
|
if(ar[ix].search(/-->/) > -1 || ar[ix].search(/\]>/) > -1 || ar[ix].search(/!DOCTYPE/) > -1 ) {
|
|
inComment = false;
|
|
}
|
|
} else
|
|
// end comment or <![CDATA[...]]> //
|
|
if(ar[ix].search(/-->/) > -1 || ar[ix].search(/\]>/) > -1) {
|
|
str += ar[ix];
|
|
inComment = false;
|
|
} else
|
|
// <elm></elm> //
|
|
if( /^<\w/.exec(ar[ix-1]) && /^<\/\w/.exec(ar[ix]) &&
|
|
/^<[\w:\-\.\,]+/.exec(ar[ix-1]) == /^<\/[\w:\-\.\,]+/.exec(ar[ix])[0].replace('/','')) {
|
|
str += ar[ix];
|
|
if(!inComment) deep--;
|
|
} else
|
|
// <elm> //
|
|
if(ar[ix].search(/<\w/) > -1 && ar[ix].search(/<\//) == -1 && ar[ix].search(/\/>/) == -1 ) {
|
|
str = !inComment ? str += this.shift[deep++]+ar[ix] : str += ar[ix];
|
|
} else
|
|
// <elm>...</elm> //
|
|
if(ar[ix].search(/<\w/) > -1 && ar[ix].search(/<\//) > -1) {
|
|
str = !inComment ? str += this.shift[deep]+ar[ix] : str += ar[ix];
|
|
} else
|
|
// </elm> //
|
|
if(ar[ix].search(/<\//) > -1) {
|
|
str = !inComment ? str += this.shift[--deep]+ar[ix] : str += ar[ix];
|
|
} else
|
|
// <elm/> //
|
|
if(ar[ix].search(/\/>/) > -1 ) {
|
|
str = !inComment ? str += this.shift[deep]+ar[ix] : str += ar[ix];
|
|
} else
|
|
// <? xml ... ?> //
|
|
if(ar[ix].search(/<\?/) > -1) {
|
|
str += this.shift[deep]+ar[ix];
|
|
} else
|
|
// xmlns //
|
|
if( ar[ix].search(/xmlns\:/) > -1 || ar[ix].search(/xmlns\=/) > -1) {
|
|
str += this.shift[deep]+ar[ix];
|
|
}
|
|
|
|
else {
|
|
str += ar[ix];
|
|
}
|
|
}
|
|
|
|
return (str[0] == '\n') ? str.slice(1) : str;
|
|
}
|
|
|
|
// ----------------------- JSON section ----------------------------------------------------
|
|
|
|
pp.prototype.json = function(text) {
|
|
|
|
if ( typeof text === "string" ) {
|
|
return JSON.stringify(JSON.parse(text), null, this.step);
|
|
}
|
|
if ( typeof text === "object" ) {
|
|
return JSON.stringify(text, null, this.step);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// ----------------------- CSS section ----------------------------------------------------
|
|
|
|
pp.prototype.css = function(text) {
|
|
|
|
var ar = text.replace(/\s{1,}/g,' ')
|
|
.replace(/\{/g,"{~::~")
|
|
.replace(/\}/g,"~::~}~::~")
|
|
.replace(/\;/g,";~::~")
|
|
.replace(/\/\*/g,"~::~/*")
|
|
.replace(/\*\//g,"*/~::~")
|
|
.replace(/~::~\s{0,}~::~/g,"~::~")
|
|
.split('~::~'),
|
|
len = ar.length,
|
|
deep = 0,
|
|
str = '',
|
|
ix = 0;
|
|
|
|
for(ix=0;ix<len;ix++) {
|
|
|
|
if( /\{/.exec(ar[ix])) {
|
|
str += this.shift[deep++]+ar[ix];
|
|
} else
|
|
if( /\}/.exec(ar[ix])) {
|
|
str += this.shift[--deep]+ar[ix];
|
|
} else
|
|
if( /\*\\/.exec(ar[ix])) {
|
|
str += this.shift[deep]+ar[ix];
|
|
}
|
|
else {
|
|
str += this.shift[deep]+ar[ix];
|
|
}
|
|
}
|
|
return str.replace(/^\n{1,}/,'');
|
|
}
|
|
|
|
// ----------------------- SQL section ----------------------------------------------------
|
|
|
|
function isSubquery(str, parenthesisLevel) {
|
|
return parenthesisLevel - (str.replace(/\(/g,'').length - str.replace(/\)/g,'').length )
|
|
}
|
|
|
|
function split_sql(str, tab) {
|
|
|
|
return str.replace(/\s{1,}/g," ")
|
|
|
|
.replace(/ AND /ig,"~::~"+tab+tab+"AND ")
|
|
.replace(/ BETWEEN /ig,"~::~"+tab+"BETWEEN ")
|
|
.replace(/ CASE /ig,"~::~"+tab+"CASE ")
|
|
.replace(/ ELSE /ig,"~::~"+tab+"ELSE ")
|
|
.replace(/ END /ig,"~::~"+tab+"END ")
|
|
.replace(/ FROM /ig,"~::~FROM ")
|
|
.replace(/ GROUP\s{1,}BY/ig,"~::~GROUP BY ")
|
|
.replace(/ HAVING /ig,"~::~HAVING ")
|
|
//.replace(/ IN /ig,"~::~"+tab+"IN ")
|
|
.replace(/ IN /ig," IN ")
|
|
.replace(/ JOIN /ig,"~::~JOIN ")
|
|
.replace(/ CROSS~::~{1,}JOIN /ig,"~::~CROSS JOIN ")
|
|
.replace(/ INNER~::~{1,}JOIN /ig,"~::~INNER JOIN ")
|
|
.replace(/ LEFT~::~{1,}JOIN /ig,"~::~LEFT JOIN ")
|
|
.replace(/ RIGHT~::~{1,}JOIN /ig,"~::~RIGHT JOIN ")
|
|
.replace(/ ON /ig,"~::~"+tab+"ON ")
|
|
.replace(/ OR /ig,"~::~"+tab+tab+"OR ")
|
|
.replace(/ ORDER\s{1,}BY/ig,"~::~ORDER BY ")
|
|
.replace(/ OVER /ig,"~::~"+tab+"OVER ")
|
|
.replace(/\(\s{0,}SELECT /ig,"~::~(SELECT ")
|
|
.replace(/\)\s{0,}SELECT /ig,")~::~SELECT ")
|
|
.replace(/ THEN /ig," THEN~::~"+tab+"")
|
|
.replace(/ UNION /ig,"~::~UNION~::~")
|
|
.replace(/ USING /ig,"~::~USING ")
|
|
.replace(/ WHEN /ig,"~::~"+tab+"WHEN ")
|
|
.replace(/ WHERE /ig,"~::~WHERE ")
|
|
.replace(/ WITH /ig,"~::~WITH ")
|
|
//.replace(/\,\s{0,}\(/ig,",~::~( ")
|
|
//.replace(/\,/ig,",~::~"+tab+tab+"")
|
|
.replace(/ ALL /ig," ALL ")
|
|
.replace(/ AS /ig," AS ")
|
|
.replace(/ ASC /ig," ASC ")
|
|
.replace(/ DESC /ig," DESC ")
|
|
.replace(/ DISTINCT /ig," DISTINCT ")
|
|
.replace(/ EXISTS /ig," EXISTS ")
|
|
.replace(/ NOT /ig," NOT ")
|
|
.replace(/ NULL /ig," NULL ")
|
|
.replace(/ LIKE /ig," LIKE ")
|
|
.replace(/\s{0,}SELECT /ig,"SELECT ")
|
|
.replace(/~::~{1,}/g,"~::~")
|
|
.split('~::~');
|
|
}
|
|
|
|
pp.prototype.sql = function(text) {
|
|
|
|
var ar_by_quote = text.replace(/\s{1,}/g," ")
|
|
.replace(/\'/ig,"~::~\'")
|
|
.split('~::~'),
|
|
len = ar_by_quote.length,
|
|
ar = [],
|
|
deep = 0,
|
|
tab = this.step,//+this.step,
|
|
inComment = true,
|
|
inQuote = false,
|
|
parenthesisLevel = 0,
|
|
str = '',
|
|
ix = 0;
|
|
|
|
for(ix=0;ix<len;ix++) {
|
|
|
|
if(ix%2) {
|
|
ar = ar.concat(ar_by_quote[ix]);
|
|
} else {
|
|
ar = ar.concat(split_sql(ar_by_quote[ix], tab) );
|
|
}
|
|
}
|
|
|
|
len = ar.length;
|
|
for(ix=0;ix<len;ix++) {
|
|
|
|
parenthesisLevel = isSubquery(ar[ix], parenthesisLevel);
|
|
|
|
if( /\s{0,}\s{0,}SELECT\s{0,}/.exec(ar[ix])) {
|
|
ar[ix] = ar[ix].replace(/\,/g,",\n"+tab+tab+"")
|
|
}
|
|
|
|
if( /\s{0,}\(\s{0,}SELECT\s{0,}/.exec(ar[ix])) {
|
|
deep++;
|
|
str += this.shift[deep]+ar[ix];
|
|
} else
|
|
if( /\'/.exec(ar[ix]) ) {
|
|
if(parenthesisLevel<1 && deep) {
|
|
deep--;
|
|
}
|
|
str += ar[ix];
|
|
}
|
|
else {
|
|
str += this.shift[deep]+ar[ix];
|
|
if(parenthesisLevel<1 && deep) {
|
|
deep--;
|
|
}
|
|
}
|
|
}
|
|
|
|
str = str.replace(/^\n{1,}/,'').replace(/\n{1,}/g,"\n");
|
|
return str;
|
|
}
|
|
|
|
// ----------------------- min section ----------------------------------------------------
|
|
|
|
pp.prototype.xmlmin = function(text, preserveComments) {
|
|
|
|
var str = preserveComments ? text
|
|
: text.replace(/\<![ \r\n\t]*(--([^\-]|[\r\n]|-[^\-])*--[ \r\n\t]*)\>/g,"");
|
|
return str.replace(/>\s{0,}</g,"><");
|
|
}
|
|
|
|
pp.prototype.jsonmin = function(text) {
|
|
|
|
return text.replace(/\s{0,}\{\s{0,}/g,"{")
|
|
.replace(/\s{0,}\[$/g,"[")
|
|
.replace(/\[\s{0,}/g,"[")
|
|
.replace(/:\s{0,}\[/g,':[')
|
|
.replace(/\s{0,}\}\s{0,}/g,"}")
|
|
.replace(/\s{0,}\]\s{0,}/g,"]")
|
|
.replace(/\"\s{0,}\,/g,'",')
|
|
.replace(/\,\s{0,}\"/g,',"')
|
|
.replace(/\"\s{0,}:/g,'":')
|
|
.replace(/:\s{0,}\"/g,':"')
|
|
.replace(/:\s{0,}\[/g,':[')
|
|
.replace(/\,\s{0,}\[/g,',[')
|
|
.replace(/\,\s{2,}/g,', ')
|
|
.replace(/\]\s{0,},\s{0,}\[/g,'],[');
|
|
}
|
|
|
|
pp.prototype.cssmin = function(text, preserveComments) {
|
|
|
|
var str = preserveComments ? text
|
|
: text.replace(/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g,"") ;
|
|
return str.replace(/\s{1,}/g,' ')
|
|
.replace(/\{\s{1,}/g,"{")
|
|
.replace(/\}\s{1,}/g,"}")
|
|
.replace(/\;\s{1,}/g,";")
|
|
.replace(/\/\*\s{1,}/g,"/*")
|
|
.replace(/\*\/\s{1,}/g,"*/");
|
|
}
|
|
|
|
pp.prototype.sqlmin = function(text) {
|
|
return text.replace(/\s{1,}/g," ").replace(/\s{1,}\(/,"(").replace(/\s{1,}\)/,")");
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------------------
|
|
|
|
exports.pd= new pp;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
},{}],41:[function(require,module,exports){
|
|
/**
|
|
* Decimal adjustment of a number.
|
|
*
|
|
* @param {String} type The type of adjustment.
|
|
* @param {Number} value The number.
|
|
* @param {Integer} exp The exponent (the 10 logarithm of the adjustment base).
|
|
* @returns {Number} The adjusted value.
|
|
*/
|
|
var decimalAdjust = exports.decimalAdjust = function(type, value, exp) {
|
|
// If the exp is undefined or zero...
|
|
if (typeof exp === 'undefined' || +exp === 0) {
|
|
return Math[type](value);
|
|
}
|
|
value = +value;
|
|
exp = +exp;
|
|
// If the value is not a number or the exp is not an integer...
|
|
if (isNaN(value) || !(typeof exp === 'number' && exp % 1 === 0)) {
|
|
return NaN;
|
|
}
|
|
// Shift
|
|
value = value.toString().split('e');
|
|
value = Math[type](+(value[0] + 'e' + (value[1] ? (+value[1] - exp) : -exp)));
|
|
// Shift back
|
|
value = value.toString().split('e');
|
|
return +(value[0] + 'e' + (value[1] ? (+value[1] + exp) : exp));
|
|
}
|
|
|
|
module.exports = {
|
|
round10: function(value, exp) {
|
|
return decimalAdjust('round', value, exp);
|
|
},
|
|
floor10: function(value, exp) {
|
|
return decimalAdjust('floor', value, exp);
|
|
},
|
|
ceil10: function(value, exp) {
|
|
return decimalAdjust('ceil', value, exp);
|
|
},
|
|
};
|
|
|
|
module.exports.polyfill = function() {
|
|
// Decimal round
|
|
if (!Math.round10) {
|
|
Math.round10 = module.exports.round10;
|
|
}
|
|
// Decimal floor
|
|
if (!Math.floor10) {
|
|
Math.floor10 = module.exports.floor10;
|
|
}
|
|
// Decimal ceil
|
|
if (!Math.ceil10) {
|
|
Math.ceil10 = module.exports.ceil10;
|
|
}
|
|
};
|
|
|
|
},{}],42:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _V = _interopRequireDefault(require("./V2"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
var Box2 = /*#__PURE__*/function () {
|
|
function Box2(min, max) {
|
|
_classCallCheck(this, Box2);
|
|
|
|
if (_typeof(min) === 'object' && _typeof(max) === 'object' && min.x !== undefined && min.y !== undefined && max.x !== undefined && max.y !== undefined) {
|
|
this.min = new _V["default"](min);
|
|
this.max = new _V["default"](max);
|
|
this.valid = true;
|
|
} else if (min === undefined && max === undefined) {
|
|
this.min = new _V["default"](Infinity, Infinity);
|
|
this.max = new _V["default"](-Infinity, -Infinity);
|
|
this.valid = false;
|
|
} else {
|
|
throw Error('Illegal construction - must use { x, y } objects');
|
|
}
|
|
}
|
|
|
|
_createClass(Box2, [{
|
|
key: "equals",
|
|
value: function equals(other) {
|
|
if (!this.valid) {
|
|
throw Error('Box2 is invalid');
|
|
}
|
|
|
|
return this.min.equals(other.min) && this.max.equals(other.max);
|
|
}
|
|
}, {
|
|
key: "expandByPoint",
|
|
value: function expandByPoint(p) {
|
|
this.min = new _V["default"](Math.min(this.min.x, p.x), Math.min(this.min.y, p.y));
|
|
this.max = new _V["default"](Math.max(this.max.x, p.x), Math.max(this.max.y, p.y));
|
|
this.valid = true;
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "expandByPoints",
|
|
value: function expandByPoints(points) {
|
|
var _this = this;
|
|
|
|
points.forEach(function (point) {
|
|
_this.expandByPoint(point);
|
|
}, this);
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "isPointInside",
|
|
value: function isPointInside(p) {
|
|
return p.x >= this.min.x && p.y >= this.min.y && p.x <= this.max.x && p.y <= this.max.y;
|
|
}
|
|
}, {
|
|
key: "width",
|
|
get: function get() {
|
|
if (!this.valid) {
|
|
throw Error('Box2 is invalid');
|
|
}
|
|
|
|
return this.max.x - this.min.x;
|
|
}
|
|
}, {
|
|
key: "height",
|
|
get: function get() {
|
|
if (!this.valid) {
|
|
throw Error('Box2 is invalid');
|
|
}
|
|
|
|
return this.max.y - this.min.y;
|
|
}
|
|
}]);
|
|
|
|
return Box2;
|
|
}();
|
|
|
|
Box2.fromPoints = function (points) {
|
|
return new Box2().expandByPoints(points);
|
|
};
|
|
|
|
var _default = Box2;
|
|
exports["default"] = _default;
|
|
},{"./V2":48}],43:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _V = _interopRequireDefault(require("./V3"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
var Box3 = /*#__PURE__*/function () {
|
|
function Box3(min, max) {
|
|
_classCallCheck(this, Box3);
|
|
|
|
if (_typeof(min) === 'object' && _typeof(max) === 'object' && min.x !== undefined && min.y !== undefined && min.z !== undefined && max.x !== undefined && max.y !== undefined && max.z !== undefined) {
|
|
this.min = new _V["default"](min);
|
|
this.max = new _V["default"](max);
|
|
this.valid = true;
|
|
} else if (min === undefined && max === undefined) {
|
|
this.min = new _V["default"](Infinity, Infinity, Infinity);
|
|
this.max = new _V["default"](-Infinity, -Infinity, -Infinity);
|
|
this.valid = false;
|
|
} else {
|
|
throw Error('Illegal construction - must use { x, y, z } objects');
|
|
}
|
|
}
|
|
|
|
_createClass(Box3, [{
|
|
key: "equals",
|
|
value: function equals(other) {
|
|
if (!this.valid) {
|
|
throw Error('Box3 is invalid');
|
|
}
|
|
|
|
return this.min.equals(other.min) && this.max.equals(other.max);
|
|
}
|
|
}, {
|
|
key: "expandByPoint",
|
|
value: function expandByPoint(p) {
|
|
this.min = new _V["default"](Math.min(this.min.x, p.x), Math.min(this.min.y, p.y), Math.min(this.min.z, p.z));
|
|
this.max = new _V["default"](Math.max(this.max.x, p.x), Math.max(this.max.y, p.y), Math.max(this.max.z, p.z));
|
|
this.valid = true;
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "expandByPoints",
|
|
value: function expandByPoints(points) {
|
|
var _this = this;
|
|
|
|
points.forEach(function (point) {
|
|
_this.expandByPoint(point);
|
|
}, this);
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "isPointInside",
|
|
value: function isPointInside(p) {
|
|
return p.x >= this.min.x && p.y >= this.min.y && p.z >= this.min.z && p.x <= this.max.x && p.y <= this.max.y && p.z <= this.max.z;
|
|
}
|
|
}, {
|
|
key: "width",
|
|
get: function get() {
|
|
if (!this.valid) {
|
|
throw Error('Box3 is invalid');
|
|
}
|
|
|
|
return this.max.x - this.min.x;
|
|
}
|
|
}, {
|
|
key: "depth",
|
|
get: function get() {
|
|
if (!this.valid) {
|
|
throw Error('Box3 is invalid');
|
|
}
|
|
|
|
return this.max.y - this.min.y;
|
|
}
|
|
}, {
|
|
key: "height",
|
|
get: function get() {
|
|
if (!this.valid) {
|
|
throw Error('Box3 is invalid');
|
|
}
|
|
|
|
return this.max.z - this.min.z;
|
|
}
|
|
}]);
|
|
|
|
return Box3;
|
|
}();
|
|
|
|
Box3.fromPoints = function (points) {
|
|
return new Box3().expandByPoints(points);
|
|
};
|
|
|
|
var _default = Box3;
|
|
exports["default"] = _default;
|
|
},{"./V3":49}],44:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _V = _interopRequireDefault(require("./V2"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
var turn = function turn(p1, p2, p3) {
|
|
var a = p1.x;
|
|
var b = p1.y;
|
|
var c = p2.x;
|
|
var d = p2.y;
|
|
var e = p3.x;
|
|
var f = p3.y;
|
|
var m = (f - b) * (c - a);
|
|
var n = (d - b) * (e - a);
|
|
return m > n + Number.EPSILON ? 1 : m + Number.EPSILON < n ? -1 : 0;
|
|
}; // http://stackoverflow.com/a/16725715/35448
|
|
|
|
|
|
var isIntersect = function isIntersect(e1, e2) {
|
|
var p1 = e1.a;
|
|
var p2 = e1.b;
|
|
var p3 = e2.a;
|
|
var p4 = e2.b;
|
|
return turn(p1, p3, p4) !== turn(p2, p3, p4) && turn(p1, p2, p3) !== turn(p1, p2, p4);
|
|
};
|
|
|
|
var _getIntersection = function getIntersection(m, n) {
|
|
// https://en.wikipedia.org/wiki/Line%E2%80%93line_intersection
|
|
var x1 = m.a.x;
|
|
var x2 = m.b.x;
|
|
var y1 = m.a.y;
|
|
var y2 = m.b.y;
|
|
var x3 = n.a.x;
|
|
var x4 = n.b.x;
|
|
var y3 = n.a.y;
|
|
var y4 = n.b.y;
|
|
var x12 = x1 - x2;
|
|
var x34 = x3 - x4;
|
|
var y12 = y1 - y2;
|
|
var y34 = y3 - y4;
|
|
var c = x12 * y34 - y12 * x34;
|
|
var px = ((x1 * y2 - y1 * x2) * x34 - x12 * (x3 * y4 - y3 * x4)) / c;
|
|
var py = ((x1 * y2 - y1 * x2) * y34 - y12 * (x3 * y4 - y3 * x4)) / c;
|
|
|
|
if (isNaN(px) || isNaN(py)) {
|
|
return null;
|
|
} else {
|
|
return new _V["default"](px, py);
|
|
}
|
|
};
|
|
|
|
var dist = function dist(a, b) {
|
|
return Math.sqrt(Math.pow(a.x - b.x, 2) + Math.pow(a.y - b.y, 2));
|
|
};
|
|
|
|
var Line2 = /*#__PURE__*/function () {
|
|
function Line2(a, b) {
|
|
_classCallCheck(this, Line2);
|
|
|
|
if (_typeof(a) !== 'object' || a.x === undefined || a.y === undefined) {
|
|
throw Error('expected first argument to have x and y properties');
|
|
}
|
|
|
|
if (_typeof(b) !== 'object' || b.x === undefined || b.y === undefined) {
|
|
throw Error('expected second argument to have x and y properties');
|
|
}
|
|
|
|
this.a = new _V["default"](a);
|
|
this.b = new _V["default"](b);
|
|
}
|
|
|
|
_createClass(Line2, [{
|
|
key: "length",
|
|
value: function length() {
|
|
return this.a.sub(this.b).length();
|
|
}
|
|
}, {
|
|
key: "intersects",
|
|
value: function intersects(other) {
|
|
if (!(other instanceof Line2)) {
|
|
throw new Error('expected argument to be an instance of vecks.Line2');
|
|
}
|
|
|
|
return isIntersect(this, other);
|
|
}
|
|
}, {
|
|
key: "getIntersection",
|
|
value: function getIntersection(other) {
|
|
if (this.intersects(other)) {
|
|
return _getIntersection(this, other);
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
}, {
|
|
key: "containsPoint",
|
|
value: function containsPoint(point) {
|
|
var eps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1e-12;
|
|
return Math.abs(dist(this.a, this.b) - dist(point, this.a) - dist(point, this.b)) < eps;
|
|
}
|
|
}]);
|
|
|
|
return Line2;
|
|
}();
|
|
|
|
var _default = Line2;
|
|
exports["default"] = _default;
|
|
},{"./V2":48}],45:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _V = _interopRequireDefault(require("./V3"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
var dist = function dist(a, b) {
|
|
return Math.sqrt(Math.pow(a.x - b.x, 2) + Math.pow(a.y - b.y, 2) + Math.pow(a.z - b.z, 2));
|
|
};
|
|
|
|
var Line3 = /*#__PURE__*/function () {
|
|
function Line3(a, b) {
|
|
_classCallCheck(this, Line3);
|
|
|
|
if (_typeof(a) !== 'object' || a.x === undefined || a.y === undefined || a.z === undefined) {
|
|
throw Error('expected first argument to have x, y and z properties');
|
|
}
|
|
|
|
if (_typeof(b) !== 'object' || b.x === undefined || b.y === undefined || b.y === undefined) {
|
|
throw Error('expected second argument to have x, y and z properties');
|
|
}
|
|
|
|
this.a = new _V["default"](a);
|
|
this.b = new _V["default"](b);
|
|
}
|
|
|
|
_createClass(Line3, [{
|
|
key: "length",
|
|
value: function length() {
|
|
return this.a.sub(this.b).length();
|
|
}
|
|
}, {
|
|
key: "containsPoint",
|
|
value: function containsPoint(point) {
|
|
var eps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1e-12;
|
|
return Math.abs(dist(this.a, this.b) - dist(point, this.a) - dist(point, this.b)) < eps;
|
|
}
|
|
}]);
|
|
|
|
return Line3;
|
|
}();
|
|
|
|
var _default = Line3;
|
|
exports["default"] = _default;
|
|
},{"./V3":49}],46:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
var Plane3 = /*#__PURE__*/function () {
|
|
function Plane3(a, b, c, d) {
|
|
_classCallCheck(this, Plane3);
|
|
|
|
this.a = a;
|
|
this.b = b;
|
|
this.c = c;
|
|
this.d = d;
|
|
} // Distance to a point
|
|
// http://mathworld.wolfram.com/Point-PlaneDistance.html eq 10
|
|
|
|
|
|
_createClass(Plane3, [{
|
|
key: "distanceToPoint",
|
|
value: function distanceToPoint(p0) {
|
|
var dd = (this.a * p0.x + this.b * p0.y + this.c * p0.z + this.d) / Math.sqrt(this.a * this.a + this.b * this.b + this.c * this.c);
|
|
return dd;
|
|
}
|
|
}, {
|
|
key: "equals",
|
|
value: function equals(other) {
|
|
return this.a === other.a && this.b === other.b && this.c === other.c && this.d === other.d;
|
|
}
|
|
}, {
|
|
key: "coPlanar",
|
|
value: function coPlanar(other) {
|
|
var coPlanarAndSameNormal = this.a === other.a && this.b === other.b && this.c === other.c && this.d === other.d;
|
|
var coPlanarAndReversedNormal = this.a === -other.a && this.b === -other.b && this.c === -other.c && this.d === -other.d;
|
|
return coPlanarAndSameNormal || coPlanarAndReversedNormal;
|
|
}
|
|
}]);
|
|
|
|
return Plane3;
|
|
}(); // From point and normal
|
|
|
|
|
|
Plane3.fromPointAndNormal = function (p, n) {
|
|
var a = n.x;
|
|
var b = n.y;
|
|
var c = n.z;
|
|
var d = -(p.x * a + p.y * b + p.z * c);
|
|
return new Plane3(n.x, n.y, n.z, d);
|
|
};
|
|
|
|
Plane3.fromPoints = function (points) {
|
|
var firstCross;
|
|
|
|
for (var i = 0, il = points.length; i < il; ++i) {
|
|
var ab = points[(i + 1) % il].sub(points[i]);
|
|
var bc = points[(i + 2) % il].sub(points[(i + 1) % il]);
|
|
var cross = ab.cross(bc);
|
|
|
|
if (!(isNaN(cross.length()) || cross.length() === 0)) {
|
|
if (!firstCross) {
|
|
firstCross = cross.norm();
|
|
} else {
|
|
var same = cross.norm().equals(firstCross, 1e-6);
|
|
var opposite = cross.neg().norm().equals(firstCross, 1e-6);
|
|
|
|
if (!(same || opposite)) {
|
|
throw Error('points not on a plane');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!firstCross) {
|
|
throw Error('points not on a plane');
|
|
}
|
|
|
|
return Plane3.fromPointAndNormal(points[0], firstCross.norm());
|
|
};
|
|
|
|
var _default = Plane3;
|
|
exports["default"] = _default;
|
|
},{}],47:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
var _V = _interopRequireDefault(require("./V3"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
// Quaternion implementation heavily adapted from the Quaternion implementation in THREE.js
|
|
// https://github.com/mrdoob/three.js/blob/master/src/math/Quaternion.js
|
|
var Quaternion = /*#__PURE__*/function () {
|
|
function Quaternion(x, y, z, w) {
|
|
_classCallCheck(this, Quaternion);
|
|
|
|
this.x = x;
|
|
this.y = y;
|
|
this.z = z;
|
|
this.w = w;
|
|
}
|
|
|
|
_createClass(Quaternion, [{
|
|
key: "applyToVec3",
|
|
value: function applyToVec3(v3) {
|
|
var x = v3.x;
|
|
var y = v3.y;
|
|
var z = v3.z;
|
|
var qx = this.x;
|
|
var qy = this.y;
|
|
var qz = this.z;
|
|
var qw = this.w; // calculate quat * vector
|
|
|
|
var ix = qw * x + qy * z - qz * y;
|
|
var iy = qw * y + qz * x - qx * z;
|
|
var iz = qw * z + qx * y - qy * x;
|
|
var iw = -qx * x - qy * y - qz * z; // calculate result * inverse quat
|
|
|
|
return new _V["default"](ix * qw + iw * -qx + iy * -qz - iz * -qy, iy * qw + iw * -qy + iz * -qx - ix * -qz, iz * qw + iw * -qz + ix * -qy - iy * -qx);
|
|
}
|
|
}]);
|
|
|
|
return Quaternion;
|
|
}();
|
|
|
|
Quaternion.fromAxisAngle = function (axis, angle) {
|
|
// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
|
|
var axisNorm = axis.norm();
|
|
var halfAngle = angle / 2;
|
|
var s = Math.sin(halfAngle);
|
|
return new Quaternion(axisNorm.x * s, axisNorm.y * s, axisNorm.z * s, Math.cos(halfAngle));
|
|
};
|
|
|
|
var _default = Quaternion;
|
|
exports["default"] = _default;
|
|
},{"./V3":49}],48:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
var V2 = /*#__PURE__*/function () {
|
|
function V2(x, y) {
|
|
_classCallCheck(this, V2);
|
|
|
|
if (_typeof(x) === 'object') {
|
|
this.x = x.x;
|
|
this.y = x.y;
|
|
} else {
|
|
this.x = x;
|
|
this.y = y;
|
|
}
|
|
}
|
|
|
|
_createClass(V2, [{
|
|
key: "equals",
|
|
value: function equals(other) {
|
|
return this.x === other.x && this.y === other.y;
|
|
}
|
|
}, {
|
|
key: "length",
|
|
value: function length() {
|
|
return Math.sqrt(this.dot(this));
|
|
}
|
|
}, {
|
|
key: "neg",
|
|
value: function neg() {
|
|
return new V2(-this.x, -this.y);
|
|
}
|
|
}, {
|
|
key: "add",
|
|
value: function add(b) {
|
|
return new V2(this.x + b.x, this.y + b.y);
|
|
}
|
|
}, {
|
|
key: "sub",
|
|
value: function sub(b) {
|
|
return new V2(this.x - b.x, this.y - b.y);
|
|
}
|
|
}, {
|
|
key: "multiply",
|
|
value: function multiply(w) {
|
|
return new V2(this.x * w, this.y * w);
|
|
}
|
|
}, {
|
|
key: "norm",
|
|
value: function norm() {
|
|
return this.multiply(1 / this.length());
|
|
}
|
|
}, {
|
|
key: "dot",
|
|
value: function dot(b) {
|
|
return this.x * b.x + this.y * b.y;
|
|
}
|
|
}]);
|
|
|
|
return V2;
|
|
}();
|
|
|
|
var _default = V2;
|
|
exports["default"] = _default;
|
|
},{}],49:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
var V3 = /*#__PURE__*/function () {
|
|
function V3(x, y, z) {
|
|
_classCallCheck(this, V3);
|
|
|
|
if (_typeof(x) === 'object') {
|
|
this.x = x.x;
|
|
this.y = x.y;
|
|
this.z = x.z;
|
|
} else if (x === undefined) {
|
|
this.x = 0;
|
|
this.y = 0;
|
|
this.z = 0;
|
|
} else {
|
|
this.x = x;
|
|
this.y = y;
|
|
this.z = z;
|
|
}
|
|
}
|
|
|
|
_createClass(V3, [{
|
|
key: "equals",
|
|
value: function equals(other, eps) {
|
|
if (eps === undefined) {
|
|
eps = 0;
|
|
}
|
|
|
|
return Math.abs(this.x - other.x) <= eps && Math.abs(this.y - other.y) <= eps && Math.abs(this.z - other.z) <= eps;
|
|
}
|
|
}, {
|
|
key: "length",
|
|
value: function length() {
|
|
return Math.sqrt(this.dot(this));
|
|
}
|
|
}, {
|
|
key: "neg",
|
|
value: function neg() {
|
|
return new V3(-this.x, -this.y, -this.z);
|
|
}
|
|
}, {
|
|
key: "add",
|
|
value: function add(b) {
|
|
return new V3(this.x + b.x, this.y + b.y, this.z + b.z);
|
|
}
|
|
}, {
|
|
key: "sub",
|
|
value: function sub(b) {
|
|
return new V3(this.x - b.x, this.y - b.y, this.z - b.z);
|
|
}
|
|
}, {
|
|
key: "multiply",
|
|
value: function multiply(w) {
|
|
return new V3(this.x * w, this.y * w, this.z * w);
|
|
}
|
|
}, {
|
|
key: "norm",
|
|
value: function norm() {
|
|
return this.multiply(1 / this.length());
|
|
}
|
|
}, {
|
|
key: "dot",
|
|
value: function dot(b) {
|
|
return this.x * b.x + this.y * b.y + this.z * b.z;
|
|
}
|
|
}, {
|
|
key: "cross",
|
|
value: function cross(b) {
|
|
return new V3(this.y * b.z - this.z * b.y, this.z * b.x - this.x * b.z, this.x * b.y - this.y * b.x);
|
|
}
|
|
}]);
|
|
|
|
return V3;
|
|
}();
|
|
|
|
var _default = V3;
|
|
exports["default"] = _default;
|
|
},{}],50:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
Object.defineProperty(exports, "V2", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _V["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "V3", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _V2["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "Box2", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _Box["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "Box3", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _Box2["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "Plane3", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _Plane["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "Quaternion", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _Quaternion["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "Line2", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _Line["default"];
|
|
}
|
|
});
|
|
Object.defineProperty(exports, "Line3", {
|
|
enumerable: true,
|
|
get: function get() {
|
|
return _Line2["default"];
|
|
}
|
|
});
|
|
|
|
var _V = _interopRequireDefault(require("./V2"));
|
|
|
|
var _V2 = _interopRequireDefault(require("./V3"));
|
|
|
|
var _Box = _interopRequireDefault(require("./Box2"));
|
|
|
|
var _Box2 = _interopRequireDefault(require("./Box3"));
|
|
|
|
var _Plane = _interopRequireDefault(require("./Plane3"));
|
|
|
|
var _Quaternion = _interopRequireDefault(require("./Quaternion"));
|
|
|
|
var _Line = _interopRequireDefault(require("./Line2"));
|
|
|
|
var _Line2 = _interopRequireDefault(require("./Line3"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
|
|
},{"./Box2":42,"./Box3":43,"./Line2":44,"./Line3":45,"./Plane3":46,"./Quaternion":47,"./V2":48,"./V3":49}]},{},[26])(26)
|
|
});
|