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深入剖析JavaScript代码执行上下文、变量范围以及闭包(Closure)
Some concepts are important to grok before you can grok closures. One of them is the execution context.This article has a very good primer on Execution Context. To quote the article:When code is ru...
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常见面试题JavaScript闭包(ES5语法)
JavaScript闭包(Closure)是常见的JS面试题,是否理解闭包是一个简单的区分JS初级和高级程序员的判例。几乎每个JS程序员都在使用闭包,有意或无意间。比如编写一个jQuery鼠标点击处理函数:$(function()>{ >>var>option; >>$(".scssbox").click(function()>{>//>闭包,该闭包同时也是一个匿名函数 >>>>option...