webpack-analysis-and-minimize-config

1. size analys
npm i -g webpack-bundle-size-analyzer
webpack --json | webpack-bundle-size-analyzer

2. webpack.config.js  for minimize
         new webpack.optimize.UglifyJsPlugin({
             minimize: true,
             compress: {
                 warnings: false,
             },
         }),
         new webpack.optimize.DedupePlugin(),
         new webpack.optimize.LimitChunkCountPlugin({maxChunks: 15}),
         new webpack.optimize.MinChunkSizePlugin({minChunkSize: 10000}),
         new webpack.optimize.OccurenceOrderPlugin(),
         new webpack.DefinePlugin({
             '__DEVTOOLS': false,
             'process.env': {NODE_ENV: '"production"'}
         }), //**/