Math.floor vs Math.round vs parseInt vs Bitwise vs Manual Round (v117)

Revision 117 of this benchmark created by Shane Brinkman-Davis on April 1, 2014

Description

Test runner

Math.floor(Math.random());

Math.round(Math.random());

parseInt(Math.random());

Math.random() | 0;

Math.random() >> 0;

~~
Math.random();

Math.random() << 0;

Math.random() + .5 | 0;

Math.ceil(Math.random());

-~Math.random();

Math.random()

Math.random() + ""

parseInt(Math.random() + "")

(Math.random() + "") | 0

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