jQuery filter vs. complex selector

JavaScript performance comparison

Test case created by Joseph Silber

Preparation code

<div class="base">
    <div>
        <div>
            <div>
                <div>
                    <!-- recursive divs (quantity not defined...) -->
                </div>
            </div>
        </div>
    </div>
</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 

Preparation code output

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Testing in unknown unknown
Test Ops/sec
filter
$('.base *').filter(function(){
    return ! $(this).find('> *').length;
});
pending…
selector
$('.base :not(:has(*))')
pending…

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