Run results for: getAttribute vs dataset

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:125.0) Gecko/20100101 Firefox/125.0

Browser: Firefox 125

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 6 months ago

Test name	Executions per second
getAttribute	155306.0 Ops/sec
dataset	2285.4 Ops/sec

HTML Preparation code:

<div id="foo" data-foo="foo_id"></div>

Tests:

getAttribute
var element = document.getElementById("foo"); var i = 10000; while (i--) { var foo = element.getAttribute("data-foo"); }
dataset
var element = document.getElementById("foo"); var i = 10000; while (i--) { var foo = element.dataset.foo; }