About the Tutorial BabelJS is a JavaScript transpiler which transpiles new features into old standard. With this, the features can be run on both old and new browsers, hassle-free. Babeljs comes with a wide wide range of features in the form of plugins, presets, polyfills, etc. In short, Babeljs is a toolset which has all the required tools available with it and which helps the developers to use all the current want to learn the basics of BabelJS and its programming concepts in simple and easy ways. This tutorial will give you enough understanding on various functionalities of BabelJS with suitable examples. ##

14th edition $ ^{8} $ – Support $ ^{9} $ des différentes implémentations – Conversions avec BabelJS $ ^{10} $ • JavaScript : implémentation Firefox (réf. MDN) • Variantes (à transpiler) : – Typescript

transformFromAst(ast, code, options); // => { code, map, ast } 配置对象 options，可以参看官方文档http://babeljs.io/docs/usage/options/。 下面是一个例子。 var es6Code = 'let x = n => n + 1'; var es5Code = 国产的ES6到ES5的转码器 - esnext, ES6 Module Transpiler：基于node.js的将ES6模块转为ES5代码的命令行工具 • Sebastian McKenzie, BabelJS: ES6转译器 - SystemJS, SystemJS: 在浏览器中加载 AMD、CJS、ES6 模块的一个垫片库 • Modernizr, HTML5 Cross Browser Polyfills: