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

Comparing === and ==

Benchmark created on September 21, 2010

Preparation HTML

<script>
 var a = 3;
 var b = undefined;
 var c = "5";
</script>

Test runner

Ready to run.

Testing in
Test		Ops/sec
1 ==	`if (a == b) {}`	ready
2 ==	`if (b == c) {}`	ready
3 ==	`if (a == c) {}`	ready
1 ===	`if (a === b) {}`	ready
2 ===	`if (b === c) {}`	ready
3 ===	`if (a === c) {}`	ready

Revisions

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

Revision 1: published on September 21, 2010