JSFiddle - React, Tailwind, and code Playground

HTML

<select id="s">
    <option value="1">1</option>
    <option value="2">2</option>
</select>

JavaScript

$("#s option[value=2]").attr("selected", "selected");
$("#s option").removeAttr("selected"); // dirtiness is set to true
$("#s option[value=2]").attr("selected", "selected"); // attribute update should not select option due to dirtiness.