webpack.prod.js

import path from 'path'
import HtmlWebpackPlugin from 'html-webpack-plugin'
import MiniCssExtractPlugin from 'mini-css-extract-plugin'
import UglifyJsPlugin from 'uglifyjs-webpack-plugin'
import OptimizeCSSAssetsPlugin from 'optimize-css-assets-webpack-plugin'
import { CleanWebpackPlugin } from 'clean-webpack-plugin'

const outputPath = path.resolve(__dirname, 'dist')

export default {
  mode: 'production',
  entry: ['@babel/polyfill', './src/index.js'],
  output: {
    filename: '[name].[hash].js',
    path: outputPath,
  },
  module: {
    rules: [
      {
        enforce: 'pre',
        test: /\.jsx?$/,
        exclude: /node_modules/,
        loader: 'eslint-loader',
      },
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
      },
      {
        test: /\.css$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader'],
      },
      {
        test: /\.html$/,
        loader: 'html-loader',
      },
    ],
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: './src/index.html',
      filename: 'index.html',
    }),
    new MiniCssExtractPlugin({
      filename: '[name].[hash].css',
    }),
  ],
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        uglifyOptions: {
          compress: {
            drop_console: true,
          },
        },
      }),
      new OptimizeCSSAssetsPlugin(),
    ],
  },
}