webpack.config.js

const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin')

module.exports = {
  entry: './index.js',
  mode: 'development',
  module: {
    rules: [
      {
        test: /\.js$/i,
        exclude: /(node_modules|bower_components)/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['env', 'stage-3'],
            plugins: ['transform-runtime'],
          }
        },
      }
    ]
  },
  devtool: 'eval-source-map',
  plugins: [
    new HtmlWebpackPlugin({
      template: `${__dirname}/entry.ejs`,
      filename: 'index.html',
    }),
  ],
  devServer: {
    contentBase: path.join(__dirname, "dist"),
    compress: true,
    port: 9000
  },
}