Run results for: jQuery vs Vanilla JS GetID Speed Test 22

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36

Browser: Chrome 70

Operating system: Mac OS X 10.14.0

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
getElementById()	3948897.0 Ops/sec
getElementsByClassName()	2515745.0 Ops/sec
getElementsByTagName()	3095322.0 Ops/sec
querySelector(#id)	2252300.0 Ops/sec
querySelector(.id)	3221075.0 Ops/sec
querySelectorAll(tag#id)	834206.2 Ops/sec
querySelectorAll(.id)	1108958.0 Ops/sec
jQuery(#id)	1421189.0 Ops/sec
jQuery(.id)	705516.3 Ops/sec
jQuery(tag#id)	357195.5 Ops/sec
jQuery(tag.id)	382349.8 Ops/sec
jQuery + getElementById	1533682.0 Ops/sec
jQuery + getElementsByClassName	602818.4 Ops/sec

HTML Preparation code:

<script src="//ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.slim.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"); 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(tag#id)
var el = document.querySelectorAll('div#foo'); var className = el.className;
querySelectorAll(.id)
var el = document.querySelectorAll('.foo2'); var className = el.className;
jQuery(#id)
var el = $("#foo"); var className = el.className;
jQuery(.id)
var el = $(".foo2"); var className = el.className;
jQuery(tag#id)
var el = $("div#foo"); var className = el.className;
jQuery(tag.id)
var el = $("div.foo2"); var className = el.className;
jQuery + getElementById
var el = $(document.getElementById("foo")); var className = el.className;
jQuery + getElementsByClassName
var el = $(document.getElementsByClassName("foo2")); var className = el.className;