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

[...].reverse vs .slice.reverse (v3)

Revision 3 of this benchmark created by Dave Bosley on September 6, 2019

Test runner

Ready to run.

Testing in
Test		Ops/sec
slice.reverse	`[1,2,3,4,5,6,7,8,9,10].slice().reverse()`	ready
reduceRight => push	`[1,2,3,4,5,6,7,8,9,10].reduceRight((a, c) => (a.push(c), a), [])`	ready
[...].reverse	`[...[1,2,3,4,5,6,7,8,9,10]].reverse()`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published by brianmhunt on January 30, 2019
Revision 3: published by Dave Bosley on September 6, 2019