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

jQuery Selector Perf - Right-to-Left (v122)

Revision 122 of this benchmark created on September 17, 2013

Preparation HTML

<div id="box">
  <p class="blah"> Hi </p>
</div>
  <script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Test runner

Ready to run.

Testing in
Test		Ops/sec
"Left to Write" Thinking	`$('.blah #box');`	ready
"Right to Left"	`$('#box .blah');`	ready
Alternate "Right to Left"	`$('.blah');`	ready

Revisions

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

Revision 1: published by Jeffrey Way on February 2, 2011
Revision 32: published on February 16, 2011
Revision 37: published on March 12, 2011
Revision 38: published on March 12, 2011
Revision 40: published on March 24, 2011
Revision 41: published on March 24, 2011
Revision 44: published on May 4, 2011
Revision 45: published on May 6, 2011
Revision 46: published on May 11, 2011
Revision 47: published on May 11, 2011
Revision 48: published on May 17, 2011
Revision 49: published on May 26, 2011
Revision 50: published by ShiningRay on May 27, 2011
Revision 52: published on June 10, 2011
Revision 54: published on June 18, 2011
Revision 55: published by tick on June 22, 2011
Revision 56: published on September 1, 2011
Revision 57: published on September 1, 2011
Revision 58: published by MoonScript on September 2, 2011
Revision 59: published by richard on September 2, 2011
Revision 60: published on September 7, 2011
Revision 61: published on September 7, 2011
Revision 62: published on September 7, 2011
Revision 63: published on September 7, 2011
Revision 64: published on September 7, 2011
Revision 65: published on October 18, 2011
Revision 68: published by m--s on November 28, 2011
Revision 69: published by devu on November 29, 2011
Revision 70: published by Scott Kosman on December 13, 2011
Revision 71: published on December 16, 2011
Revision 74: published on January 19, 2012
Revision 75: published on January 19, 2012
Revision 83: published on February 22, 2012
Revision 84: published on March 6, 2012
Revision 87: published on March 8, 2012
Revision 88: published by Chris Miller on April 18, 2012
Revision 89: published by Chris Miller on April 18, 2012
Revision 90: published by Chris Miller on April 18, 2012
Revision 91: published on May 1, 2012
Revision 92: published by Dominik Nejdl on May 14, 2012
Revision 93: published on May 23, 2012
Revision 94: published on May 31, 2012
Revision 95: published by Marco Pfeiffer on May 31, 2012
Revision 97: published on September 27, 2012
Revision 98: published on September 30, 2012
Revision 99: published on September 30, 2012
Revision 101: published on November 12, 2012
Revision 102: published on November 16, 2012
Revision 103: published on January 26, 2013
Revision 104: published by BinaryKitten on January 26, 2013
Revision 105: published on February 1, 2013
Revision 106: published by Reith on February 5, 2013
Revision 107: published on April 25, 2013
Revision 108: published on May 21, 2013
Revision 109: published on May 30, 2013
Revision 110: published on June 5, 2013
Revision 112: published by Claire on June 5, 2013
Revision 113: published by Claire Martinez on June 5, 2013
Revision 114: published on June 5, 2013
Revision 115: published on June 5, 2013
Revision 116: published on July 10, 2013
Revision 117: published by niceue on July 17, 2013
Revision 118: published by niceue on August 1, 2013
Revision 120: published on September 10, 2013
Revision 121: published on September 10, 2013
Revision 122: published on September 17, 2013
Revision 123: published by void on October 17, 2013