jQuery .live() vs .delegate() vs .on()

JavaScript performance comparison

Revision 82 of this test case created

Preparation code

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<div id="myContext">
 <p id="myPar">Some paragraph</p>
</div>
<script>
Benchmark.prototype.setup = function() {
    function testFn() {
      console.log(this);
    }
};
</script>

Preparation code output

Some paragraph

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in unknown unknown
Test Ops/sec
.on() p
$('#myPar').on('click', testFn).trigger('click').off('click');
pending…
.on() p with context
$('#myContext p').on('click', testFn).trigger('click').off('click');
pending…
.delegate()
$('#myContext').delegate('p', 'click', testFn).trigger('click').off('click');
pending…
.delegate() on document
$(document).delegate('#myPar', 'click', testFn).trigger('click').off('click');
pending…
.find().on()
$('#myContext').find('#myPar').on('click', testFn).trigger('click').off('click');
pending…
.on() on document
$(document).on('click', '#myPar', testFn).trigger('click').off('click');
pending…
dom.on p
dom(document.getElementById('myPar')).on('click', testFn); dom.trigger('click');
dom.off('*');
dom();
pending…
dom.on context
dom(document.getElementById('myContext')).on('click', testFn, '#myPar');
dom.trigger('click');
dom.off('*');
dom();
pending…
dom.on document
dom(document).on('click', testFn, '#myPar');
dom.trigger('click');
dom.off('*');
dom();
pending…
dom.on document.find
dom(document).find('#myPar').on('click', testFn);
dom.trigger('click');
dom.off('*');
dom();
pending…
dom.on context find p
dom(document.getElementById('myContext')).find('p').on('click', testFn);
dom.trigger('click');
dom.off('*');
dom();
pending…

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