ES6 模块写法示例

export default { foo: 'bar' }// CommonJS module.exports = { foo: 'bar' }

export var foo = 'bar' // CommonJS module.exports.foo = 'bar'
export var baz = 'ponyfoo'

import _ from 'lodash'// var _ = require('lodash')

import {map, reduce} from 'lodash'
import {map as myMay} from 'lodash'

import * as _ from 'lodash'

export default {
  a:1
}
export var other = {
  b:2,
  c:3
}

import d from './demo'
console.log(d) // {a: 1}
import {default as d1,other1, other2 as myName, other3} from './demo'
console.log(d1) // {a: 1}
console.log(other1) // {b: 2, c: 3}
console.log(myName)  // {d: 4}
console.log(other3) // undefined

import * as all from './demo'
console.log(all) //  {default: Object, other1: Object, other2: Object, __esModule: true}
console.log(all.default) // {a: 1}

var isDebugger = true
if(isDebugger) {
  import mock from './mock'
}