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

Math.floor vs Math.round vs parseInt vs Bitwise (v153)

Revision 153 of this benchmark created on January 15, 2015

Description

Rounding in all form possible

Test runner

Ready to run.

Testing in
Test		Ops/sec
Math.floor	`Math.floor(1190.000112324324);`	ready
Math.round	`Math.round(1190.000112324324);`	ready
parseInt / 10	`parseInt(1190.000112324324 / 10);`	ready
parseInt	`parseInt(1190.000112324324);`	ready
Bitwise	`1190.000112324324 >> 0`	ready
Bit OR	`1190.000112324324 \| 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 Felladrin on November 2, 2010
Revision 2: published by Batiste on February 10, 2011
Revision 5: published by John-David Dalton on April 6, 2011
Revision 6: published on May 20, 2011
Revision 7: published by Paul Straw on May 27, 2011
Revision 8: published by John-David Dalton on June 29, 2011
Revision 9: published by Fabrizio on August 31, 2011
Revision 10: published by runTarm on September 12, 2011
Revision 11: published on September 12, 2011
Revision 12: published on October 7, 2011
Revision 13: published by Steffen Haugk on October 12, 2011
Revision 14: published on October 15, 2011
Revision 15: published on October 16, 2011
Revision 16: published on October 31, 2011
Revision 17: published on October 31, 2011
Revision 18: published on November 7, 2011
Revision 19: published on November 15, 2011
Revision 20: published by Simon on December 6, 2011
Revision 21: published by Sam on December 22, 2011
Revision 22: published on January 10, 2012
Revision 23: published by Michael Programs on January 19, 2012
Revision 24: published on January 22, 2012
Revision 25: published on January 23, 2012
Revision 26: published by Yar on January 29, 2012
Revision 27: published on January 29, 2012
Revision 28: published by Yar on January 29, 2012
Revision 30: published by dested on February 14, 2012
Revision 31: published on February 16, 2012
Revision 32: published on February 18, 2012
Revision 33: published on February 21, 2012
Revision 34: published on February 21, 2012
Revision 35: published on February 21, 2012
Revision 36: published on February 23, 2012
Revision 37: published on April 18, 2012
Revision 38: published on May 5, 2012
Revision 39: published on May 8, 2012
Revision 41: published on May 31, 2012
Revision 42: published by Marco Pfeiffer on June 9, 2012
Revision 44: published on July 17, 2012
Revision 45: published by Jon-Carlos Rivera on July 17, 2012
Revision 46: published by Jon-Carlos Rivera on July 17, 2012
Revision 47: published by Philip Peterson on July 18, 2012
Revision 48: published on July 18, 2012
Revision 50: published on July 18, 2012
Revision 51: published by Jon-Carlos Rivera on July 18, 2012
Revision 52: published by Jon-Carlos Rivera on July 18, 2012
Revision 53: published on July 20, 2012
Revision 55: published on August 13, 2012
Revision 56: published on September 7, 2012
Revision 57: published by azazdeaz on September 16, 2012
Revision 58: published by azazdeaz on September 16, 2012
Revision 59: published on December 20, 2012
Revision 60: published on January 2, 2013
Revision 62: published on February 12, 2013
Revision 63: published by Eric Teubert on February 21, 2013
Revision 64: published on February 26, 2013
Revision 66: published on March 7, 2013
Revision 67: published on March 16, 2013
Revision 68: published on April 12, 2013
Revision 69: published on April 20, 2013
Revision 70: published on May 6, 2013
Revision 71: published on May 23, 2013
Revision 72: published on May 30, 2013
Revision 74: published on June 11, 2013
Revision 75: published on June 27, 2013
Revision 76: published by Devraj Mehta on July 11, 2013
Revision 77: published on July 12, 2013
Revision 79: published on July 17, 2013
Revision 80: published on July 17, 2013
Revision 81: published on July 21, 2013
Revision 82: published on July 25, 2013
Revision 83: published on July 25, 2013
Revision 85: published by atSetKey on July 25, 2013
Revision 86: published by Yaakov on August 7, 2013
Revision 87: published by imma on August 13, 2013
Revision 88: published on August 16, 2013
Revision 89: published by techmatt on August 23, 2013
Revision 90: published by maurizzzio on August 26, 2013
Revision 91: published on September 4, 2013
Revision 92: published by ly tran on September 5, 2013
Revision 93: published on September 27, 2013
Revision 94: published on October 15, 2013
Revision 95: published on October 15, 2013
Revision 96: published on October 21, 2013
Revision 97: published on October 28, 2013
Revision 98: published on October 29, 2013
Revision 99: published on November 2, 2013
Revision 100: published on November 3, 2013
Revision 101: published by gfx on November 5, 2013
Revision 103: published by Rob Adams on November 8, 2013
Revision 105: published on November 20, 2013
Revision 106: published on December 15, 2013
Revision 107: published on January 12, 2014
Revision 108: published on January 24, 2014
Revision 109: published on January 26, 2014
Revision 110: published by Rohit Vighne on January 28, 2014
Revision 111: published by Chen-Pang He on January 29, 2014
Revision 112: published by jdiaz5513 on February 1, 2014
Revision 114: published on February 25, 2014
Revision 115: published by Aicke Schulz on March 4, 2014
Revision 116: published on March 14, 2014
Revision 117: published by Shane Brinkman-Davis on April 1, 2014
Revision 118: published on May 5, 2014
Revision 120: published on May 22, 2014
Revision 121: published on May 22, 2014
Revision 122: published on May 22, 2014
Revision 123: published on May 22, 2014
Revision 124: published on May 22, 2014
Revision 125: published on May 24, 2014
Revision 126: published by PAEz on May 25, 2014
Revision 129: published on July 7, 2014
Revision 130: published by nordligulv on July 21, 2014
Revision 131: published on July 24, 2014
Revision 132: published on July 29, 2014
Revision 133: published on August 9, 2014
Revision 134: published on September 7, 2014
Revision 135: published by Heavensrevenge on September 11, 2014
Revision 136: published on September 30, 2014
Revision 138: published by bluefireuoop on October 24, 2014
Revision 139: published by Stefano Azzolini on November 4, 2014
Revision 140: published by Stefano Azzolini on November 4, 2014
Revision 141: published on November 8, 2014
Revision 143: published on November 22, 2014
Revision 147: published by Adametry on December 6, 2014
Revision 148: published on December 19, 2014
Revision 149: published by Leo Dutra on December 29, 2014
Revision 150: published by David on January 2, 2015
Revision 151: published by michael on January 4, 2015
Revision 152: published on January 6, 2015
Revision 153: published on January 15, 2015
Revision 154: published on January 15, 2015
Revision 155: published on January 17, 2015
Revision 156: published by julian on February 10, 2015
Revision 158: published by Roland Pihlakas on February 25, 2015
Revision 161: published by Riccardo Bartoli on March 12, 2015
Revision 162: published on May 12, 2023