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简单说下前端中的模块化开发
阅读量:509 次
发布时间:2019-03-07

本文共 503 字,大约阅读时间需要 1 分钟。

模块化主要是用来抽离公共代码,隔离作用域,避免变量冲突等。

  1. IIFE: 适用自执行函数来编写模块化,特点:在一个单独的函数作用域中执行代码,避免变量冲突
(function (){   	return {   		data: []	}})()
  1. AMD: 适用 requireJS 来编写模块化,特点:依赖必须提前声明好
define('./index.js', function(code) {   	// code 就是 index.js 返回的内容})
  1. CMD:使用 seaJS 来编写模块化,特点:支持动态引入依赖文件
define(function (require, exports, module) {   	var indexCode = require('./index.js')})
  1. CommonJS: nodejs 中自带的模块化
var fs = require('fs')
  1. UMD: 兼容AMD,CommonJS模块化语法
  2. ES Modules:ES6 引入的模块化,支持 import 来引入另一个 js
import a from 'a'

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