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
Just how slow is accessing objects compared to arrays?
<script>
var arr = [],
obj = {};
for (var i = 0; i < 10000; i++) {
arr.push(10000 - i);
obj[i] = 10000 - i;
}
var thisValue = 0;
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
Array Access |
| ready |
Object Access |
| ready |
Array Access Start |
| ready |
Array Access End |
| ready |
Object Access Start |
| ready |
Object Access End |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.