webpack.config.dev.js

const { ESBuildPlugin } = require('esbuild-loader')

  module.exports = {
    module: {
      rules: [
/*
       {
         test: /\.js$/,
         use: 'babel-loader',
       },
*/
       {
         test: /\.js$/,
          loader: 'esbuild-loader',
         options: {
           loader: 'jsx', 
           target: 'es2015' 
         }
       },
      ],
    },
    plugins: [
      new ESBuildPlugin()
    ]
  }