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

pre-increment vs post-increment (v2)

Revision 2 of this benchmark created on July 22, 2011

Preparation HTML

<script>
  var i = 0;
</script>

Test runner

Ready to run.

Testing in
Test		Ops/sec
pre-increment	`++i;`	ready
post-increment	`i++;`	ready
+=	`i += 1;`	ready
ordinary assignment	`i = i + 1;`	ready

Revisions

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

Revision 2: published on July 22, 2011