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.

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https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

.slice() vs .map()

Benchmark created by Andrey Mikhaylov (lolmaus) on April 14, 2017

Setup

var arr = Array(10000).fill(0).map((e, i) => i)

Test runner

Ready to run.

Testing in
Test		Ops/sec
slice	`arr.slice()`	ready
map	`arr.map(e => e)`	ready

Revisions

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

Revision 1: published by Andrey Mikhaylov (lolmaus) on April 14, 2017