1. Installation

npm install --save-dev babel-loader babel-core

2. Usage

via Config

var Person = require("babel!./Person.js").default;
new Person();

via Loader

module: {
  rules: [
    { test: /\.js$/, exclude: /node_modules/, loader: "babel-loader" }
  ]
}

3. Create .babelrc configuration file

npm install babel-preset-env --save-dev

define .babelrc file

{
  "presets": ["env"]
}