webpack.prod.js

const HtmlWebPackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const OptimizeCssAssetsPlugin = require("optimize-css-assets-webpack-plugin");
const MinifyPlugin = require("babel-minify-webpack-plugin");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");
const CopyPlugin = require("copy-webpack-plugin");
const path = require("path");

module.exports = {
  entry: "./src/index.ts",
  mode: "production",
  resolve: {
    extensions: [".ts", ".js", ".json"],
  },
  optimization: {
    minimizer: [new OptimizeCssAssetsPlugin()],
  },
  output: {
    filename: "main.[contentHash].js",
    path: path.resolve(__dirname, "docs"), // string (default)
  },
  module: {
    rules: [
      {
        test: /\.ts$/,
        use: "ts-loader",
        exclude: /node_modules/,
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: ["babel-loader"],
      },
      {
        test: /\.css$/,
        exclude: /styles\.css$/,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /styles\.css$/,
        use: [MiniCssExtractPlugin.loader, "css-loader"],
      },
      {
        test: /\.s[ac]ss$/,
        use: [MiniCssExtractPlugin.loader, "css-loader", "sass-loader"],
      },
      {
        test: /\.html$/,
        use: [
          {
            loader: "html-loader",
            options: { minimize: false },
          },
        ],
      },
      {
        test: /\.(png|svg|jpg|gif|ico)$/,
        use: [
          {
            loader: "file-loader",
            options: {
              esModule: false,
              name: "assets/[name].[ext]",
            },
          },
        ],
      },
    ],
  },
  plugins: [
    new HtmlWebPackPlugin({
      template: "./src/index.html",
      filename: "./index.html",
    }),
    new MiniCssExtractPlugin({
      filename: "[name].[contentHash].css",
      ignoreOrder: false,
    }),
    new MinifyPlugin(),
    new CleanWebpackPlugin(),
    new CopyPlugin([
      { from: "src/icon.png", to: "./icon.png" },
      { from: "src/manifest.json", to: "./manifest.json" },
    ]),
  ],
};