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>
T = function(i) {
this.i = i;
};
var ar = [];
for (var i = 0; i < 1000; i++)
ar[i] = new T(i);
w = ar[990]
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
For loop 1 |
| ready |
for-loop 2 |
| ready |
indexOf |
| ready |
for loop1 with == |
| ready |
for loop 2 with == |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.