webpack.config.js

const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

module.exports = {
  devtool: 'source-map',
  entry: './src/index.js',
  mode: process.env.NODE_ENV || 'development',
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env'],
          },
        },
      },
      {
        test: /\.css$/, use: [MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader'],
      },
      {
        test: /\.scss$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader', 'postcss-loader'],
      },
      {
        test: /\.woff2?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
        use: 'url-loader?limit=10000',
      },
      {
        test: /\.(ttf|eot|svg)(\?[\s\S]+)?$/,
        use: 'file-loader',
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin(),
    new HtmlWebpackPlugin({
      template: 'index.html',
    }),
  ],
};