webpack.common.js

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

module.exports = {
  entry: path.join(__dirname, 'src', 'index.js'),
  output: {
    path: path.resolve(__dirname, 'dist')
  },
  module: {
    rules: [
      {
        test: /\.?js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env', '@babel/preset-react']
          }
        }
      },
      {
        test: /\.(sa|sc|c)ss$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader']
      },
      {
        test: /\.(png|jp(e*)g|svg|gif)$/,
        use: ['file-loader']
      },
      {
        // Babel config for SVG as react component
        test: /\.svg$/,
        use: ['@svgr/webpack']
      }
    ]
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.join(__dirname, 'src', 'index.html')
    }),
    new MiniCssExtractPlugin({
      filename: 'main.css',
      chunkFilename: 'main.[id].css'
    })
  ]
};