webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const { loader } = require('mini-css-extract-plugin');

module.exports = {
  mode: 'development',
  devtool: 'source-map',
  entry: './src/main.js',
  output: {
    path: path.resolve(__dirname, './public'),
    filename: 'assets/javascripts/[name]-[hash].js',
  },
  module: {
    rules: [
      {
        test: /\.(ts|tsx)/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'ts-loader',
          },
        ],
      },
      {
        test: /\.(js|jsx)/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'babel-loader',
            options: {
              presets: [
                ['@babel/preset-env', { targets: '> 0.25%, not dead' }],
                '@babel/preset-react',
              ],
            },
          },
        ],
      },
      {
        test: /\.(css|sass|scss)/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
          },
          {
            loader: 'css-loader',
            options: {
              sourceMap: true,
            },
          },
          {
            loader: 'sass-loader',
          },
        ],
      },
      {
        test: /\.(png|jpg|jpeg)/,
        use: [
          {
            loader: 'file-loader',
            options: {
              esModule: false,
              name: 'assets/images/[name]-[hash].[ext]',
              publicPath: '/',
            },
          },
          {
            loader: 'image-webpack-loader',
            options: {
              mozjpeg: {
                progressive: true,
                quality: 65,
              },
            },
          },
        ],
      },
      {
        test: /\.pug/,
        use: [
          {
            loader: 'html-loader',
          },
          {
            loader: 'pug-html-loader',
            options: {
              pretty: true,
            },
          },
        ],
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: './assets/stylesheets/[name]-[hash].css',
    }),
    new HtmlWebpackPlugin({
      template: './src/pages/index.pug',
      filename: 'index.html',
    }),
    new HtmlWebpackPlugin({
      template: './src/pages/second.pug',
      filename: 'second.html',
    }),
    new HtmlWebpackPlugin({
      template: './src/pages/posts/1.pug',
      filename: 'posts/1.html',
    }),
    new CleanWebpackPlugin(),
  ],
};