Run results for: jquerySelector vs getElementById and getElementsByTagName

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:99.0) Gecko/20100101 Firefox/99.0

Browser: Firefox 99

Operating system: Mac OS X 10.13

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
jQuery Selector	238881.3 Ops/sec
getElementById & getElementsByTagName	2146881.5 Ops/sec

HTML Preparation code:

<table id="table">
  <thead>
    <th>Name</th>
  </thead>
  <tbody></tbody>
</table>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

jQuery Selector
var el = $('#table tbody'); var className = el.className;
getElementById & getElementsByTagName
var el = document.getElementById('table').getElementsByTagName('tbody')[0] var className = el.className;

Run results for: jquerySelector vs getElementById and getElementsByTagName

jquery selector vs vanilla javascript selectors

jQuery Selector

getElementById & getElementsByTagName