Run results for: Testing both ways to run conditions on getAttribute from a Node

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:124.0) Gecko/20100101 Firefox/124.0

Browser: Firefox 124

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
A	452282336.0 Ops/sec
B	9537776.0 Ops/sec

HTML Preparation code:

<div id="test" data-media-type="gifv">
  lorem ipsum
</div>

Script Preparation code:

localName = 'img';
parentNode = document.getElementById('test');

Tests:

A
if (localName === "img" && (parentNode.getAttribute("data-media-type") === "video" || parentNode.getAttribute("data-media-type") === "gifv")) { // do stuff }
B
if (localName === "img" && ["video", "gifv"].includes(parentNode.getAttribute("data-media-type"))) { // do stuff }