jQuery，使用.each 获取类中每个元素的ID？
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jQuery, get ID of each element in a class using .each?
提问by Rick
I'm trying this to get the idof each element in a classbut 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 idthat is part of the classis appreciated, as I can't seem to figure this out.. Thanks.
我想这让id各元素在class，而是它的单独提醒类的每一个名字，所以class="test"它的提醒：t，e，s，t...如何让每一个元素任何意见id是部分class是感谢，因为我似乎无法弄清楚这一点..谢谢。
$.each('test', function() {
alert(this)
});
回答by user113716
Try this, replacing .myClassNamewith the actual name of the class (but keep the period at the beginning).
试试这个，用.myClassName类的实际名称替换（但将句点保留在开头）。
$('.myClassName').each(function() {
alert( this.id );
});
So if the class is "test", you'd do $('.test').each(func....
所以如果课程是“测试”，你会做$('.test').each(func....
This is the specific form of .each()that iterates over a jQuery object.
这是.each()遍历 jQuery 对象的特定形式。
The form you were using iterates over anytype of collection. So you were essentially iterating over an array of characters t,e,s,t.
您使用的表单可以遍历任何类型的集合。所以你本质上是在迭代一个字符数组t,e,s,t。
Using thatform of $.each(), you would need to do it like this:
使用这种形式的$.each()，您需要这样做：
$.each($('.myClassName'), function() {
alert( this.id );
});
...which will have the same result as the example above.
...这将具有与上述示例相同的结果。
回答by jessegavin
patrick dw's answer is right on.
patrick dw的答案是正确的。
For kicks and giggles I thought I would post a simple way to return an array of all the IDs.
对于踢球和傻笑，我想我会发布一种简单的方法来返回所有 ID 的数组。
var arrayOfIds = $.map($(".myClassName"), function(n, i){
return n.id;
});
alert(arrayOfIds);
