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:

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Can be accessed at:

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indexOf And Tilde

Benchmark created by Wyatt on October 9, 2011

Test runner

Ready to run.

Testing in
Test		Ops/sec
indexOf	`if ('shoe horn'.indexOf('shoe') > -1) { //found it } else { //didn't }`	ready
tilde	`if (~'shoe horn'.indexOf('shoe')) { //didn't find it } else { //did }`	ready

Revisions

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

Revision 1: published by Wyatt on October 9, 2011
Revision 2: published on February 27, 2012
Revision 4: published on August 30, 2012
Revision 7: published on June 20, 2013