Run results for: hasAttribute vs dataset

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

hasAttribute

314K/s

dataset

3K/s

View exact numbers

Test name	Executions per second
✓ hasAttribute	314,060 Ops/sec
dataset	2,609 Ops/sec

HTML Preparation code:

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

Tests:

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