Run results for: Element.closest vs. Element.hasAttribute

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:107.0) Gecko/20100101 Firefox/107.0

Browser: Firefox 107

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Element.closest	7649.8 Ops/sec
Element.hasAttribute	655919.5 Ops/sec

HTML Preparation code:

<div data-att="foo"></div>

Tests:

Element.closest
var element = document.querySelector("[data-att='foo']"); var i = 1000; while (i--) { element.closest("[data-att]"); }
Element.hasAttribute
var element = document.querySelector("[data-att='foo']"); var i = 1000; while (i--) { element.hasAttribute("data-att"); }