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.
jsperf.com URLs are mirrored at the same path, e.g:
https://jsperf.com/negative-modulo/2
Can be accessed at:
https://jsperf.app/negative-modulo/2
Improved version of .get() for negative indices.
Also makes .get( negativeNumberLargerThenElementCount ) behave the same as .get( numberLargerThenElementCount ) both return now undefined. Before .get( negativeNumberLargerThenElementCount ) always returned the first element too to the use of slice.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.js"></script>
<div id="foo" style="display:none"><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p></div>
<script>
var $sel = $("#foo p");
(function($) {
$.fn.myGet = function(num) {
return num == null ?
// Return a 'clean' array
this.toArray() :
// Return just the object
(num < 0 ? this[this.length + num] : this[num]);
}
})(jQuery);
</script>Ready to run.
| Test | Ops/sec | |
|---|---|---|
| orig | | ready |
| new | | ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.