add bundle analyser

package-lock.json

@@ -9489,6 +9489,25 @@
         }
       }
     },
+    "webpack-bundle-analyzer": {
+      "version": "2.9.1",
+      "resolved": "https://registry.npmjs.org/webpack-bundle-analyzer/-/webpack-bundle-analyzer-2.9.1.tgz",
+      "integrity": "sha512-a+UcvlsXvCmclNgfThT8PVyuJKd029By7CxkYEbNNCfs0Lqj9gagjkdv3S3MBvCIKBaUGYs8l4UpiVI0bFoh2Q==",
+      "dev": true,
+      "requires": {
+        "acorn": "5.2.1",
+        "chalk": "1.1.3",
+        "commander": "2.11.0",
+        "ejs": "2.5.7",
+        "express": "4.16.2",
+        "filesize": "3.5.11",
+        "gzip-size": "3.0.0",
+        "lodash": "4.17.4",
+        "mkdirp": "0.5.1",
+        "opener": "1.4.3",
+        "ws": "3.3.2"
+      }
+    },
     "webpack-dev-middleware": {
       "version": "1.12.0",
       "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-1.12.0.tgz",

package.json

@@ -47,6 +47,7 @@
     "valid-url": "^1.0.9"
   },
   "devDependencies": {
+    "webpack-bundle-analyzer": "^2.9.1",
     "babel-cli": "6.24.1",
     "babel-core": "6.24.1",
     "babel-loader": "^7.0.0",

webpack.config.js

@@ -1,5 +1,5 @@
 const path = require('path');
-// const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
+const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
 const HTMLWebpackPlugin = require('html-webpack-plugin');
 
 const devMode = process.env.NODE_ENV !== 'production';
@@ -80,6 +80,7 @@ module.exports = {
       inject: false,
       appMountId: 'app'
     }),
+    // new BundleAnalyzerPlugin()
   ],
   devtool: "source-map",
   devServer: {