javascript 变量，var x = a = {} 有什么作用? [英] javascript variables, What does var x = a = {} do?

问题描述

我在 jQuery 中看到这样的:

I see in jQuery something like this:

jQuery.fn = jQuery.prototype = {}

为什么要这样做?这不就是说 jQuery.prototype = {} 吗?我不确定我是否理解 Resig 在这里完成的工作.

Why is this being done? Isn't this the same thing just saying jQuery.prototype = {}? I'm not sure I understand what Resig is accomplishing here.

推荐答案

同:

jQuery.prototype = {}
jQuery.fn = jQuery.prototype

在我看来，将所有内容放在一行中更清楚地表明您为两个变量分配了相同的值

In my opinion having all in one line makes more clear that your assigning the same value to both variables

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