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

Console.log vs hidden logging (v16)

Revision 16 of this benchmark created by tomekwi on November 12, 2014

Setup

function emptyFunction (theMessage) {}
  
  window.log = '';
  function hiddenLog (theMessage) {
      window.log += theMessage + '\n';
      }

Test runner

Ready to run.

Testing in
Test		Ops/sec
Custom hidden log	`hiddenLog('Logging stuff');`	ready
An empty function	`emptyFunction('Logging stuff');`	ready
Console.log	`console.log('Logging stuff');`	ready

Revisions

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

Revision 1: published on July 11, 2012
Revision 2: published on June 6, 2013
Revision 7: published by dubrox on October 15, 2013
Revision 8: published on December 19, 2013
Revision 9: published on December 20, 2013
Revision 10: published on January 28, 2014
Revision 12: published on September 13, 2014
Revision 14: published by Tomek Wiszniewski on November 5, 2014
Revision 15: published by Jared Youtsey on November 11, 2014
Revision 16: published by tomekwi on November 12, 2014
Revision 20: published on January 7, 2015
Revision 21: published on March 6, 2015
Revision 22: published on June 7, 2015
Revision 23: published on June 8, 2015
Revision 24: published by Richard DIllman on November 13, 2015
Revision 26: published on April 20, 2023