jQuery如何根据数据属性值查找元素？

问题：

I've got the following scenario: 我有以下场景：

var el = 'li';

and there are 5 <li> 's on the page each with a data-slide=number attribute (number being 1,2,3,4,5 respectively) . 页面上有5个<li> ，每个都有一个data-slide=number属性（数字分别为1,2,3,4,5） 。

I now need to find the currently active slide number which is mapped to var current = $('ul').data(current); 我现在需要找到当前活动的幻灯片编号，该编号映射到var current = $('ul').data(current); and is updated on each slide change. 并在每次幻灯片更改时更新。

So far my tries have been unsuccessful, trying to construct the selector that would match the current slide: 到目前为止，我的尝试都没有成功，尝试构建与当前幻灯片匹配的选择器：

$('ul').find(el+[data-slide=+current+]);

does not match/return anything… 不匹配/返回任何东西......

The reason I can't hardcode the li part is that this is a user accessible variable that can be changed to a different element if required, so it may not always be an li . 我无法对li部分进行硬编码的原因是，这是一个用户可访问的变量，如果需要可以更改为不同的元素，因此它可能并不总是一个li 。

Any ideas on what I'm missing? 关于我缺少的任何想法？

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解决方案：

参考一： https://stackoom.com/question/HaN0/jQuery如何根据数据属性值查找元素
参考二： https://oldbug.net/q/HaN0/jQuery-how-to-find-an-element-based-on-a-data-attribute-value

来源：oschina

链接：https://my.oschina.net/stackoom/blog/4318007