webpack.config.js

const path = require('path')
const TerserPlugin = require('terser-webpack-plugin')

module.exports = {
  entry: {
    main: './react/src/app.jsx'
  },

  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /(node_modules|bower_components)/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/env', '@babel/preset-react']
          }
        }
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      },
      {
        test: /\.scss$/,
        use: ['style-loader', 'css-loader', 'sass-loader']
      }
    ]
  },

  optimization: {
    minimizer: [new TerserPlugin({
      extractComments: false
      // terserOptions: {
      //   format: {
      //       comments: false,
      //   },
      // }
    })]
  },

  output: {
    filename: '[name].bundle.js',
    path: path.resolve(__dirname, 'assets/built')
  },
  mode: 'production'
  // REMEMBER TO CHANGE THIS TO PROD
}