requirejs commonjs与es6的import写法对

require.js

首先定义：

//content.js

define('content.js', function(){

    return 'A cat';

})

然后require：

//index.js
require(['./content.js'], function(animal){

    console.log(animal);   //A cat

})

CommonJS

//index.js
var animal = require('./content.js')

//content.js
module.exports = 'A cat'

ES6的写法

//index.js
import animal from './content'

//content.js
export default 'A cat'