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: 2 years ago

Benchmark engine: Benchmark.js

Closest

4.4M/s

Contains

4.3M/s

View exact numbers

Test name	Executions per second
✓ Closest	4,389,138 Ops/sec
Contains	4,273,268 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')