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

Floating point number to precision.

Benchmark created on February 9, 2024

Test runner

Ready to run.

Testing in
Test		Ops/sec
toPrecision	`parseFloat(Math.PI.toPrecision(49))`	ready
Math.round	`Math.round(Math.PI * 1e49) / 1e49`	ready

Revisions

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

Revision 1: published on February 9, 2024