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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replace string vs regex vs new RegExp (v2)

Revision 2 of this benchmark created by harth on June 6, 2011

Test runner

Ready to run.

Testing in
Test		Ops/sec
Regex	`"xxxxxxxxxabcxxxxxxabcxx".replace(/abc/g, "def")`	ready
String	`"xxxxxxxxxabcxxxxxxabcxx".replace("abc", "def")`	ready
new RegExp	`"xxxxxxxxxabcxxxxxxabcxx".replace(new RegExp("abc", "g"), "def")`	ready

Revisions

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

Revision 1: published on April 14, 2011
Revision 2: published by harth on June 6, 2011
Revision 3: published by harth on June 7, 2011
Revision 4: published on July 25, 2011
Revision 5: published on August 13, 2011
Revision 6: published on April 16, 2012
Revision 7: published by Francisc on January 23, 2013
Revision 8: published by Hans on January 30, 2013
Revision 9: published on January 15, 2015