jQuery.data vs jQuery().data vs .getAttribute

JavaScript performance comparison

Revision 49 of this test case created by Dennis Kim

Info

Compare various methods of setting and getting HTML5 data attributes.

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div id="el"></div>
<script>
  var $el = $('#el');
  var el = document.getElementById('el');
  var temp;
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
jQuery.fn.data
$el.data('key', 'val-' + Math.floor(Math.random() * 1001));
temp = $el.data('key');
pending…
jQuery.data
$.data($el, 'key', 'val-' + Math.floor(Math.random() * 1001));
temp = $.data($el, 'key');
pending…
setAttribute
el.setAttribute('data-key', 'val-' + Math.floor(Math.random() * 1001));
temp = el.getAttribute('data-key');
pending…
accessor
el['data-key'] = 'val-' + Math.floor(Math.random() * 1001);
temp = el['data-key'];
pending…

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Revisions

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