Benchmark: jQuery ids vs classes

HTML Preparation code:

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

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
Get by id
Get by class

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.106 Safari/537.36

Browser/OS: Chrome 80 on Windows

Test name	Executions per second
Get by id	282836.5 Ops/sec
Get by class	209526.2 Ops/sec

jQuery ids vs classes (version: 0)