webpack.config.js

const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin')
const TerserPlugin = require('terser-webpack-plugin')

module.exports = {
  entry: {
    app: path.resolve(__dirname, 'int-src/index.js')
  },
  output: {
    path: path.resolve(__dirname, 'int-dist'),
    filename: 'js/[name].js',
    clean: true
  },
  devServer: {
    port: 3000,
    open: true,
    hot: true,
    historyApiFallback: true
  },
  module: {
    rules: [
      {
        test: /\.html$/,
        use: [
          {
            loader: 'html-loader',
            options: {
              interpolate: true
            }
          }
        ]
      },
      {
        test: /\.scss$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          {
            loader: 'postcss-loader',
            options: {
              postcssOptions: {
                plugins: [
                  [
                    'postcss-preset-env',
                    {
                      browsers: 'last 2 versions'
                    }
                  ]
                ]
              }
            }
          },
          'sass-loader'
        ]
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env']
          }
        }
      }
    ]
  },
  optimization: {
    minimizer: [new TerserPlugin(), new CssMinimizerPlugin()]
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: 'css/[name].css'
    }),
    new HtmlWebpackPlugin({
      template: 'int-src/html/index.html',
      minify: false,
      hash: true
    })
  ]
}