jQuery，使用.each获取类中每个元素的ID? [英] jQuery, get ID of each element in a class using .each?

问题描述

我正在尝试获取class中每个元素的id，但是相反，它分别警告类的每个名称，因此对于class="test"，它是警告:t，e，s，t ...关于如何获取属于class的每个元素id的任何建议，我们都感激不尽，谢谢.

I'm trying this to get the id of each element in a class but instead it's alerting each name of the class separately, so for class="test" it's alerting: t, e, s, t... Any advice on how to get the each element id that is part of the class is appreciated, as I can't seem to figure this out.. Thanks.

$.each('test', function() { 
   alert(this)
});

推荐答案

尝试一下，将.myClassName替换为类的实际名称(但以句点开头).

Try this, replacing .myClassName with the actual name of the class (but keep the period at the beginning).

$('.myClassName').each(function() {
    alert( this.id );
});

因此，如果班级为测试"，则可以执行$('.test').each(func....

So if the class is "test", you'd do $('.test').each(func....

这是.each()的特定形式，它遍历jQuery对象.

This is the specific form of .each() that iterates over a jQuery object.

您使用的表单会在任何类型的集合中进行迭代.因此，您实质上是在遍历字符数组t,e,s,t.

The form you were using iterates over any type of collection. So you were essentially iterating over an array of characters t,e,s,t.

使用$.each()的 that 形式，您需要这样做:

Using that form of $.each(), you would need to do it like this:

$.each($('.myClassName'), function() {
    alert( this.id );
});

...与上面的示例具有相同的结果.

...which will have the same result as the example above.

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