Run results for: jQuery old vs Vanilla JS GetID Speed Test2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36

Browser: Chrome 79

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
getElementById()	2829337.8 Ops/sec
getElementsByClassName()	1778475.9 Ops/sec
getElementsByTagName()	1989867.0 Ops/sec
querySelector(#id)	1736156.0 Ops/sec
querySelector(.id)	2213047.0 Ops/sec
querySelectorAll(#id)	757731.3 Ops/sec
querySelectorAll(.id)	989596.0 Ops/sec
jQuery(#id)	817325.4 Ops/sec
jQuery(.id)	482864.8 Ops/sec
jQuery(tag#id)	320361.9 Ops/sec
jQuery(tag.id)	381247.2 Ops/sec
jQuery + getElementById	1114747.1 Ops/sec
jQuery + getElementsByClassName	274365.5 Ops/sec
jQuery + querySelectorAll	293244.9 Ops/sec
querySelectorAll in function	959463.7 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;
querySelectorAll in function
var el = (function(selector){return document.querySelectorAll(selector);})('.foo2'); var className = el[0].className;