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
Test various ways of performing a shallow array copy.
const arr = new Array(10000);
arr.map(v => Math.round(Math.random() * 100));
const swap = [...arr];
Ready to run.
Test | Ops/sec | |
---|---|---|
Spread operator |
| ready |
Concat |
| ready |
Use swap array |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.