Run results for: getAttribute vs dataset

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/116.0

Browser: Firefox 116

Operating system: Windows 8.1

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
getAttribute	73690.3 Ops/sec
dataset	549.8 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; }