Run results for: jQuery old vs Vanilla JS GetID Speed Test

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.117 Safari/537.36

Browser: Chrome 79

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
getElementById()	1925877.6 Ops/sec
getElementsByClassName()	1890871.9 Ops/sec
getElementsByTagName()	1342236.5 Ops/sec
querySelector(#id)	966221.1 Ops/sec
querySelector(.id)	1550671.0 Ops/sec
querySelectorAll(#id)	569687.6 Ops/sec
querySelectorAll(.id)	547973.5 Ops/sec
jQuery(#id)	594090.5 Ops/sec
jQuery(.id)	338224.8 Ops/sec
jQuery(tag#id)	292860.1 Ops/sec
jQuery(tag.id)	292352.5 Ops/sec
jQuery + getElementById	666238.9 Ops/sec
jQuery + getElementsByClassName	202948.0 Ops/sec
jQuery + querySelectorAll	235710.7 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="foo" class="foo2"></div>

Tests:

getElementById()
var el = document.getElementById('foo'); var className = el.className;
getElementsByClassName()
var el = document.getElementsByClassName('foo2')[0]; var className = el.className;
getElementsByTagName()
var el = document.getElementsByTagName('div')[0]; var className = el.className;
querySelector(#id)
var el = document.querySelector('#foo'); var className = el.className;
querySelector(.id)
var el = document.querySelector('.foo2'); var className = el.className;
querySelectorAll(#id)
var el = document.querySelectorAll('#foo')[0]; var className = el.className;
querySelectorAll(.id)
var el = document.querySelectorAll('.foo2')[0]; var className = el.className;
jQuery(#id)
var el = $('#foo')[0]; var className = el.className;
jQuery(.id)
var el = $('.foo2')[0]; var className = el.className;
jQuery(tag#id)
var el = $('div#foo')[0]; var className = el.className;
jQuery(tag.id)
var el = $('div.foo2')[0]; var className = el.className;
jQuery + getElementById
var el = $(document.getElementById('foo'))[0]; var className = el.className;
jQuery + getElementsByClassName
var el = $(document.getElementsByClassName('foo2'))[0]; var className = el.className;
jQuery + querySelectorAll
var el = $(document.querySelectorAll('.foo2'))[0]; var className = el.className;