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>
var str = "This is going to be a 1000 character string: ";
var lengthToAdd = 1000 - str.length;
var i;
for (i=0; i < lengthToAdd; i++)
str += "X"
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
substring |
| ready |
slice |
| ready |
substr |
| ready |
Regex |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.