JSFiddle - React, Tailwind, and code Playground

HTML

<div dir="ltr" id="foo">سیبسیبسیبیب</div>

<div style="direction:ltr" id="baz">quux</div>

<div dir="ltr"><div id="jeez">whiz</div></div>

JavaScript

var div = document.getElementById('baz');

console.log(div.style.direction);