webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

module.exports = {
  devtool: 'inline-source-map',
  entry: './src/index.js',
  output: {
    path: path.join(__dirname, '/build'),
    publicPath: '/',
    filename: 'bundle.js'
  },
  optimization: {
    splitChunks: {
      chunks: 'all'
    }
  },
  devServer: {
    contentBase: './build'
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: ['babel-loader', 'eslint-loader']
      }
    ]
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.resolve('./index.html')
    }),
    new BundleAnalyzerPlugin({
      analyzerMode: 'disabled',
      generateStatsFile: true,
      statsOptions: { source: false },
      statsFilename: path.join(__dirname, 'stats/stats.json')
    })
  ],
  performance: { hints: false }
};