Run results for: jQuery.contains() vs. Node.contains()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1.2 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Node.contains()

3.6M/s

jQuery.contains()

2.0M/s

View exact numbers

Test name	Executions per second
✓ Node.contains()	3,639,816 Ops/sec
jQuery.contains()	2,013,380 Ops/sec

HTML Preparation code:

<script
  src="https://code.jquery.com/jquery-3.4.1.min.js"
  integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
  crossorigin="anonymous"></script>

<div id="outer">
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div id="inner">

</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>


<div id="outer2">
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div id="inner2">

</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>

Script Preparation code:

var inner = document.getElementById("inner");
var outer = document.getElementById("outer");
var inner2 = document.getElementById("inner2");
var outer2 = document.getElementById("outer2");

Tests:

jQuery.contains()
var x = jQuery.contains(outer, inner) var y = jQuery.contains(outer, inner2) var z = jQuery.contains(outer2, inner) var a = jQuery.contains(outer2, inner2)
Node.contains()
var x = outer.contains(inner) var y = outer.contains(inner2) var z = outer2.contains(inner) var a = outer2.contains(inner2)