class as attr vs class

JavaScript performance comparison

Test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 
<script>
Benchmark.prototype.setup = function() {
    $('body').append('<div id="testing" class="label"></div>');
};

Benchmark.prototype.teardown = function() {
    $('#testing').remove();
};
</script>

Preparation code output

Test runner

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Testing in unknown unknown
Test Ops/sec
attribute
$('body').find('[class*="label"]');
pending…
class
$('body').find('.label');
pending…

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