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:

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

Can be accessed at:

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

Object joins vs String Concatenation

Benchmark created by Weiss I Nicht on August 11, 2010

Test runner

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Testing in
Test		Ops/sec
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Revisions

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

Revision 1: published by Weiss I Nicht on August 11, 2010