Benchmark: jQuery 3.3.1 selector vs document.querySelector

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>
<div id="testElement"></div>

Tests:

jQuery 3.3.1
var el = $("#testElement")[0]; var className = el.className;
Vanilla JS
var el = document.querySelector('#testElement'); var className = el.className;

Rendered benchmark preparation results:

Previous results

Test case name	Result
jQuery 3.3.1
Vanilla JS

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36

Browser/OS: Chrome 80 on Windows

Test name	Executions per second
jQuery 3.3.1	759197.6 Ops/sec
Vanilla JS	1139768.0 Ops/sec

jQuery 3.3.1 selector vs document.querySelector (version: 0)