webpack.config.js

/* eslint-disable global-require */
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');

module.exports = {
  entry: path.join(__dirname, 'example/index.jsx'),
  output: {
    path: path.join(__dirname, 'build'),
    filename: '[name].bundle.js',
  },
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        use: 'babel-loader',
      },
      {
        test: /\.md$/,
        use: 'raw-loader',
      },
      {
        test: /\.css$/,
        use: [
          MiniCssExtractPlugin.loader,
          { loader: 'css-loader' },
        ],
      },
      {
        test: /\.scss$/,
        use: [
          MiniCssExtractPlugin.loader,
          {
            loader: 'css-loader',
          },
          {
            loader: 'sass-loader',
            options: {
              sassOptions: {
                url: false,
                outputStyle: 'expanded',
              },
            },
          },
        ],
      },
    ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.join(__dirname, 'example/index.template.html'),
      minify: {
        removeComments: true,
      },
    }),
    new MiniCssExtractPlugin({
      // Options similar to the same options in webpackOptions.output
      // both options are optional
      filename: 'css/[name].css',
      chunkFilename: 'css/[id].css',
    }),
  ],
  stats: {
    colors: true,
  },
  resolve: {
    extensions: ['.js', '.jsx'],
  },
  optimization: {
    minimizer: [
      new OptimizeCSSAssetsPlugin({
        cssProcessorPluginOptions: {
          preset: ['default', { discardComments: { removeAll: true } }],
        },
      }),
    ],
  },
};