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.

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https://jsperf.com/negative-modulo/2

Can be accessed at:

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best of string to number conversion (v30)

Revision 30 of this benchmark created by optionally on September 6, 2015

Setup

var x = "12345"

Test runner

Ready to run.

Testing in
Test		Ops/sec
Number()	`Number(x)`	ready
parsetInt()	`parseInt(x, 10)`	ready
parseFloat()	`parseFloat(x)`	ready
unary	`+x`	ready
~~ (integer output only)	`~~x`	ready
\| 0 (truncating)	`x \| 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 Takashi M on October 12, 2012
Revision 2: published on October 12, 2012
Revision 3: published on October 12, 2012
Revision 4: published by Geo Carncross on August 2, 2013
Revision 5: published on August 23, 2013
Revision 6: published by Claudio Cicali on September 5, 2013
Revision 7: published on October 5, 2013
Revision 8: published on November 4, 2013
Revision 9: published on November 11, 2013
Revision 10: published by MIke on November 11, 2013
Revision 11: published on December 21, 2013
Revision 12: published by Zero-filled arrays on June 5, 2014
Revision 13: published by Including Bitwise Operators on September 23, 2014
Revision 14: published on September 26, 2014
Revision 15: published by Cristy on November 11, 2014
Revision 16: published on November 14, 2014
Revision 17: published on January 7, 2015
Revision 18: published by Mister on February 7, 2015
Revision 20: published by Hiaru on March 2, 2015
Revision 21: published by Mark Birbeck on March 14, 2015
Revision 23: published on April 10, 2015
Revision 24: published on April 10, 2015
Revision 25: published on April 10, 2015
Revision 26: published by Iván on April 20, 2015
Revision 27: published by serjout on May 13, 2015
Revision 28: published on May 18, 2015
Revision 30: published by optionally on September 6, 2015
Revision 31: published on September 20, 2015
Revision 33: published on September 24, 2015
Revision 34: published on September 24, 2015
Revision 35: published by OJ on September 24, 2015
Revision 36: published by OJ on September 24, 2015
Revision 37: published by ostin on October 27, 2015
Revision 38: published by TrueBlueAussie on October 28, 2015
Revision 39: published by asdf on December 11, 2015
Revision 41: published on December 21, 2015
Revision 42: published on December 30, 2015
Revision 43: published on January 30, 2016
Revision 45: published on March 2, 2016