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
<script src="https://ajax.googleapis.com/ajax/libs/mootools/1.3/mootools-yui-compressed.js"></script>
<div>
<ul>
<li><a href="#" name="name" class="classname">item 1</a></li>
<li><a href="#" name="name" class="classname">item 2</a></li>
<li><a href="#" name="name" class="classname">item 3</a></li>
<li><a href="#" name="name" class="classname">item 4</a></li>
<li><a href="#" name="name" class="classname">item 5</a></li>
<li><a href="#" name="name" class="classname">item 6</a></li>
<li><a href="#" name="name" class="classname">item 7</a></li>
<li><a href="#" name="name" class="classname">item 8</a></li>
<li><a href="#" name="name" class="classname">item 9</a></li>
<li><a href="#" name="name" class="classname">item 10</a></li>
</ul>
</div>
<script>
var nodes;
</script>
var App = {};
var found = [], className, matchClass, i;
var $c = function(str) {
var nodes = document.getElementsByTagName('*');
for (i = 0; node = nodes[i++];){
className = node.className;
matchClass = new RegExp('(^|\\s)'+ str +'(\\s|$)');
if (matchClass.test(className)) found.push(node);
}
return found;
};
Ready to run.
Test | Ops/sec | |
---|---|---|
getElementsByClassName |
| ready |
querySelectorAll |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.