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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Coercion vs Casting (v4)

Revision 4 of this benchmark created on November 7, 2012

Test runner

Ready to run.

Testing in
Test		Ops/sec
Coercion	`~~+'2.9'-1`	ready
Casting	`parseInt('2.9', 10)`	ready
Bitshift	`('2.9' >> 0) - 1`	ready

Revisions

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

Revision 1: published by gf3 on August 6, 2010
Revision 2: published by Fedor Indutny on August 7, 2010
Revision 3: published by harry on November 7, 2012
Revision 4: published on November 7, 2012
Revision 6: published by Michal on January 11, 2013
Revision 7: published on November 14, 2013
Revision 8: published on November 14, 2013
Revision 9: published on November 14, 2013
Revision 10: published on November 25, 2013
Revision 11: published on December 5, 2013
Revision 13: published by Hakan Aktas on June 3, 2014
Revision 16: published on July 21, 2014
Revision 17: published on December 15, 2014
Revision 19: published on June 5, 2015
Revision 20: published on June 9, 2015
Revision 22: published on February 7, 2016