module.exports = {
  entry: './index.js',
  module: {
    rules: [{
      test: /\.m?js$/,
      exclude: /node_modules/,
      use: {
        loader: 'babel-loader',
        options: {
          presets: [
            ['@babel/preset-env', {
              useBuiltIns: 'usage',
              corejs: 3
            }]
          ]
        }
      }
    }]
  }
}