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

Data Attribute vs Dataset

Benchmark created on June 13, 2023

Preparation HTML

<div id="testHost" data-upload-event="uploadFiles"></div>

Setup

var testHost = document.getElementById("testHost");

Test runner

Ready to run.

Testing in
Test		Ops/sec
Get Attribute	`var a = testHost.getAttribute("data-upload-event");`	ready
Dataset	`var b = testHost.dataset.uploadEvent;`	ready

Revisions

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

Revision 1: published on June 13, 2023