jQuery $ .each选择器 [英] Jquery $.each selector

问题描述

我想知道$.each()在jquery中代表什么，
它在选择什么?

I would like to know what $.each() stands for in jquery,
What is it selecting?

原型中是否有等同物?

推荐答案

$.each()没有选择任何内容.它只是一个遍历集合的实用程序.

$.each() isn't selecting anything. It is just a utility to iterate over a collection.

当您这样做:

$('someSelector').each(function() {
    // do something
});

jQuery内部调用:

jQuery is internally calling:

jQuery.each( this, callback, args );

...，其中this代表匹配的集合.

...with this representing the matched set.

http://github.com/jquery/jquery/blob/master/src/core.js#L231

您也可以手动手动轻松地调用它.

You could just as easily call it yourself manually.

jQuery.each( $('someSelector'), function() {
    // do something
});

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