webpack.config.base.js

const HtmlWebpackPlugin = require("html-webpack-plugin");
const CopyWebpackPlugin = require("copy-webpack-plugin");
const ImageminPlugin = require("image-minimizer-webpack-plugin");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");
const autoprefixer = require("autoprefixer");
const ESLintPlugin = require("eslint-webpack-plugin");
const path = require("path");

module.exports = {
  entry: "./src/index.jsx",
  output: {
    path: path.join(__dirname, "dist"),
    publicPath: "/",
    filename: "app-[hash].js",
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: ["babel-loader"],
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: "style-loader",
          },
          {
            loader: "css-loader",
          },
          {
            loader: "postcss-loader",
            options: {
              plugins: () => [autoprefixer()],
            },
          },
        ],
      },
      {
        test: /\.s[ac]ss$/i,
        use: [
          "style-loader",
          "css-loader",
          {
            loader: "sass-loader",
            options: {
              // Prefer `dart-sass`
              implementation: require.resolve("sass"),
            },
          },
        ],
      },
      {
        test: /\.(png|svg|jp(e*)g|gif)$/,
        type: "asset/resource", // https://webpack.js.org/guides/asset-modules/
      },
    ],
  },
  resolve: {
    alias: {
      "react-dom": "@hot-loader/react-dom",
    },
    extensions: [" ", ".js", ".jsx"],
  },
  plugins: [
    new ESLintPlugin(),
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: "./src/index.html",
    }),
    new CopyWebpackPlugin({
      patterns: [{ from: "src/assets/images", to: "assets/images" }],
    }),
    new ImageminPlugin({
      minimizer: {
        implementation: ImageminPlugin.imageminMinify,
        options: {
          // Lossless optimization with custom option
          plugins: [
            ["imagemin-mozjpeg", { quality: 20, progressive: true }],
            ["imagemin-pngquant", { optimizationLevel: 5 }],
          ],
        },
      },
    }),
  ],
};