JQuery选择器：如何选择具有特定类*和* id的项

问题描述

我正在尝试在我的网页上选择具有特定类和ID的HTML元素。以下是标记：

I'm trying to select an HTML element on my page that has a specific class and ID. Here's the tag:

<div class="statusLight" id="green"></div>

我试过没有运气：

$statusLight = $('.statusLight#green');

我知道我可以简单说

$statusLight = $('#green');

但我试图找到一种基于类来选择它的方法。

But I was trying to find a way to select it based on its class as well. Any help would be appreciated.

推荐答案

＃green.statusLight .statusLight＃green 是有效的选择器，应该选择您要查找的元素。

Both #green.statusLight and .statusLight#green are valid selectors and should select element you're looking for. First one will be faster though.

您在文档加载后使用 $（...）即从 $（document）.ready（function（）{...}）或通过将脚本放在元素之后？

Are you using $(...) after your document is loaded, i.e. from $(document).ready(function() { ... }) or by placing your script after your element?

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