Run results for: matches vs hasattribute optional

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0

Browser: Firefox 143

Operating system: Windows

Device Platform: Desktop

Date tested: 11 months ago

attr

122K/s

matches

1K/s

View exact numbers

Test name	Executions per second
✓ attr	122,050 Ops/sec
matches	1,467 Ops/sec

HTML Preparation code:

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

Tests:

matches
var element = document.getElementById("foo"); var i = 10000; while (i--) { var foo = element?.matches("[data-foo]"); }
attr
var element = document.getElementById("foo"); var i = 10000; while (i--) { var foo = element?.hasAttribute("data-foo"); }