Run results for: getElementsByClassName vs JQuery vs queryselectorALL

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0

Browser: Firefox 92

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
getElementsByClassName	142412.5 Ops/sec
JQuery	130004.5 Ops/sec
document queryselectorALL	1095447.0 Ops/sec

HTML Preparation code:

<script src="//ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>
<div class="foo" bar="baz">Hello World</div>

Tests:

getElementsByClassName
let attribute = document.getElementsByClassName('foo'); for (let i=0; i < attribute.length; i++) { attribute[i].onclick = function(){ console.log("Finaly!"); } };
JQuery
$('.foo').click(function(){ console.log("Finaly!"); });
document queryselectorALL
const attribute = document.querySelectorAll("#userlist"); for (let i=0; i < attribute.length; i++) { attribute.addEventListener("click", function(){ console.log("Finaly!"); }) };

Run results for: getElementsByClassName vs JQuery vs queryselectorALL

getElementsByClassName

JQuery

document queryselectorALL