webpack.prod.config.js

const path = require("path");
const HtmlWebPackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const UglifyJsPlugin = require("uglifyjs-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",
  resolve: {
    extensions: [".js", ".jsx"],
  },
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        cache: true,
        parallel: true,
        sourceMap: true,
      }),
      new OptimizeCSSAssetsPlugin({}),
    ],
  },
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
        },
      },
      {
        test: /\.html$/,
        use: [
          {
            loader: "html-loader",
            options: { minimize: true },
          },
        ],
      },
      {
        test: /\.jpg$/,
        use: [{ loader: "url-loader" }],
      },
      {
        test: /\.scss$/,
        use: [MiniCssExtractPlugin.loader, "css-loader", "sass-loader"],
      },
    ],
  },
  plugins: [
    new HtmlWebPackPlugin({
      template: "./src/html/index.html",
      filename: "./index.html",
      favicon: "./src/favicon.png",
    }),
    new MiniCssExtractPlugin({
      filename: "[name].css",
      chunkFilename: "[id].css",
    }),
  ],
};