Run results for: Node closest vs node contains

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; SAMSUNG SM-N986N) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/23.0 Chrome/115.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 115

Operating system: Android

Device Platform: Mobile

Date tested: 4 months ago

Test name	Executions per second
Contains	4273269.0 Ops/sec
Closest	4389138.0 Ops/sec

HTML Preparation code:

<div class="parent">
  <div class="child">
	</div>
</div>

Script Preparation code:

var parent = document.querySelector(".parent");
var child = document.querySelector(".child");

Tests:

Contains
var x = parent.contains(child)
Closest
var x = child.closest('.parent')

Run results for: Node closest vs node contains

Contains

Closest