jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.
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https://jsperf.com/negative-modulo/2
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Comparing performance of adding .click() to 100 table cells vs using .on() to listen for click events bubbling up the DOM tree.
<div id="parent"></div>
<div id="parent2"></div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
$('#parent2').on('click', '.clickable', function() {
$(this).toggleClass('active');
});
$('.clickable').remove();
Ready to run.
Test | Ops/sec | |
---|---|---|
no delegation |
| ready |
with delegation |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.