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

Or vs Floor (v36)

Revision 36 of this benchmark created by Nitai J. Perez on September 17, 2015

Test runner

Ready to run.

Testing in
Test		Ops/sec
Math.floor()	`Math.floor(13.6);`	ready
OR	`13.6 \| 0;`	ready
Left Shift	`13.6 << 0;`	ready

Revisions

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

Revision 1: published by Number of Tabs on September 20, 2011
Revision 2: published by Petros Aggelatos on September 23, 2011
Revision 3: published on December 28, 2011
Revision 4: published on August 17, 2012
Revision 5: published on August 26, 2012
Revision 11: published by flooring on August 9, 2013
Revision 12: published on January 12, 2014
Revision 13: published on January 12, 2014
Revision 14: published on January 12, 2014
Revision 15: published on February 10, 2014
Revision 16: published by David Bonnet on February 25, 2014
Revision 17: published by Peter Gao on May 16, 2014
Revision 19: published by SnailCrusher on January 11, 2015
Revision 36: published by Nitai J. Perez on September 17, 2015
Revision 37: published on October 11, 2015
Revision 38: published on December 5, 2023