是$（function（）{}）;和$（" document"）。ready（function（）{}）;相同？ [英] Are $(function(){}); and $("document").ready(function(){}); the same?

问题描述

我一直很喜欢Lynda.com的Jquery Essential Training，我注意到教练在开始时使用：

I've been enjoying Lynda.com's Jquery Essential Training, and I've noticed that in the beginning the instructor uses:

    Fig. 1

    $("document").ready(function(){
    fun stuff goes here
    });

然而，在他开始使用的某个地方：

However, somewhere along the line he starts using:

    Fig. 2

    $(function(){
    fun stuff goes here
    });

从他说话的方式来看，听起来好像是完全同义的（一些固有的jquery简写？）但据我所知，它从未被明确提及过。

From the way he speaks, it sounds as if they are completely synonymous (some inherent jquery shorthand?) but as far as I can tell, it's never explicitly touched upon.

我相信有人可以很快为我解决这个问题。我找到了这个但是我认为这个问题略有不同 - 我理解在文档就绪上调用函数的概念与全局可用函数的概念; （这些函数也有名字。）

I'm sure someone could clear this up quickly for me. I found this but I believe that question is slightly different--I understand the concept of calling a function on document ready versus one that is globally available; (those functions also have names.)

教师使用幻象函数（我认为这是一个没有名字的函数的术语），并在键入时输出图2 ，他说所以这将是文件准备......

The instructor uses phantom functions (I think that was the term for a function without a name,) and when typing out Fig. 2, he says "So this will be on document ready..."

推荐答案

是的，它们完全相同，只是别名。

Yes, they are exactly the same, just aliases.

来自jQuery网站：

以下所有三种语法都是等价的：

All three of the following syntaxes are equivalent:

$(document).ready(handler)
$().ready(handler) (this is not recommended)
$(handler)

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