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

Equality operators with the same types

Benchmark created by Dmitry A. Soshnikov on August 3, 2010

Description

Test for == and === with the same operand types.

Test runner

Ready to run.

Testing in
Test		Ops/sec
Non-strict equal	`typeof foo == "undefined";`	ready
Strict equal	`typeof foo === "undefined";`	ready

Revisions

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

Revision 1: published by Dmitry A. Soshnikov on August 3, 2010
Revision 4: published by Kyle Simpson on February 22, 2011
Revision 6: published on April 14, 2011
Revision 9: published on May 4, 2011
Revision 10: published by Tobias Reiss on January 11, 2012
Revision 11: published by Matthew Robb on March 14, 2012
Revision 12: published on December 27, 2012
Revision 13: published by Terry Anastasiadis on May 3, 2013
Revision 15: published by Favian on May 22, 2015
Revision 16: published on January 25, 2016
Revision 17: published on January 25, 2016
Revision 18: published on January 25, 2016
Revision 19: published on January 26, 2016
Revision 20: published on January 26, 2016