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
Testing speed of a standard for loop vs. Array.indexOf.
<script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.1.7/underscore-min.js"></script>
<script>
var ar = [];
for (var i = 0; i < 10000; i++) {
ar.push(i);
}
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
For loop |
| ready |
other for-loop |
| ready |
indexOf |
| ready |
dec while |
| ready |
indexOf underscore (sorted = true) |
| ready |
indexOf underscore (sorted = true) at the end of the array |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.