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
Compare removing leading array elements with assigning the variable to the slice of the old one without the leading elements, vs mutating the array in place by removing the leading elements from it
window.list = Array.from({ length: 10_000 }, Math.random)
Ready to run.
Test | Ops/sec | |
---|---|---|
.slice(n) |
| ready |
.splice(0, n) |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.