webpack.prod.config.js

const path = require('path');
const HtmlWebPackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const TerserPlugin = require('terser-webpack-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');

module.exports = {
  entry: {
    main: './src/index.jsx',
  },
  output: {
    path: path.join(__dirname, 'dist'),
    publicPath: '/',
    filename: '[name].js',
  },
  target: 'web',
  devtool: 'source-map',
  optimization: {
    minimizer: [
      new TerserPlugin(),
      new OptimizeCSSAssetsPlugin({}),
    ],
  },
  module: {
    rules: [
      {
        test: /\.jsx$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
      },
      {
        test: /\.html$/,
        use: [
          {
            loader: 'html-loader',
            options: { minimize: true },
          },
        ],
      },
      {
        test: /\.png$/,
        use: [{ loader: 'url-loader' }],
      },
      {
        test: /\.scss$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'sass-loader',
        ],
      },
    ],
  },
  plugins: [
    new HtmlWebPackPlugin({
      template: './src/html/index.html',
      filename: './index.html',
    }),
    new MiniCssExtractPlugin({
      filename: '[name].css',
      chunkFilename: '[id].css',
    }),
  ],
  resolve: {
    extensions: ['.js', '.jsx'],
  },
};