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Using jQuery, I'd like to be able to get the index of the li where the contained anchor tag's HREF equals "#All". (In this case the correct result would be 3)
<div id="tabs">
<ul>
<li><a href="#CPU"><span>CPU</span></a></li>
<li><a href="#Pickup"><span>Pickup</span></a></li>
<li><a href="#Breakfix"><span>Breakfix</span></a></li>
<li><a href="#All"><span>All</span></a></li>
</ul>
</div>
I have tried:
$("#tabs ul").index($("li a[href='#All']"))
...with no luck. What am I doing wrong?
676
This should do it:
var index = $("#tabs ul li").index($("li:has(a[href='#All'])"));
<ul> instead of all <li>s you wanted to get the index out of.<li> element :has a link with what you want by using the :has selector, otherwise the matched element will be the <a> itself instead of the <li>.Tested the above and it gives me the correct answer, 3, as the index is 0-based.
182
I think it's because your first rule is matching all UL elements, when you want it to match all LI elements. Try:
$("#tabs ul li").index($("li a[href='#All']"))
You want to get an element's index inside another context, as part of a set of elements. See index() in the API documentation for more information, particularly the examples.
<script type="text/javascript">
$(document).ready(function(){
var which_index = $("#tabs ul li a").index($("a[href='#All']"));
alert(which_index);
});
</script>
<body>
<div id="tabs">
<ul>
<li><a href="#CPU"><span>CPU</span></a></li>
<li><a href="#Pickup"><span>Pickup</span></a></li>
<li><a href="#Breakfix"><span>Breakfix</span></a></li>
<li><a href="#All"><span>All</span></a></li>
</ul>
</div>
</body>
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