getElementById VS jQuery('#id')

JavaScript performance comparison

Revision 32 of this test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<p id="foo">Test</p>
<script>
Benchmark.prototype.setup = function() {
    var $_ = function(n) {
      return $(document.getElementById(n));
    }
};
</script>

Preparation code output

Test

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Testing in unknown unknown
Test Ops/sec
getElementById
var a = document.getElementById('foo123');
 
pending…
jQuery
var a = jQuery('#foo123');
pending…
Wrap
var a = $(document.getElementById('foo123'));
pending…
My Wrap
var a = $_('foo123');
pending…

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