jQuery how to find an element based on a data-attribute value?

Question

I've got the following scenario:

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).

I now need to find the currently active slide number which is mapped to

var current = $('ul').data(current);

and is updated on each slide change.

So far my tries have been unsuccessful, trying to construct the selector that would match the current slide:

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

does not match/return anything…

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

.

Any ideas on what I'm missing?

Answer 1

You have to inject the value of current into an Attribute Equals selector:

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

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