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

Element Width (v2)

Revision 2 of this benchmark created by iofjuupasli on September 5, 2014

Preparation HTML

<div id="test"> Testing </div>

Test runner

Ready to run.

Testing in
Test		Ops/sec
offsetWidth	`var width = document.getElementById('test').offsetWidth;`	ready
getBoundingClientRect	`var width = document.getElementById('test').getBoundingClientRect().width;`	ready
clientWidth	`var width = document.getElementById('test').clientWidth;`	ready

Revisions

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

Revision 1: published by Hugo Dias on December 19, 2013
Revision 2: published by iofjuupasli on September 5, 2014