JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><a href="#">Point one</a></li>
    <li><a href="#" data-findme="yipi">Point one</a>
        <ul>
            <li><a href="#">Hello</a></li>
            <li><a href="#">Hello</a>
                <ul>
                    <li><a href="#" class="startpoint">My Startpoint</a></li>
                </ul>
            </li>
        </ul>
    </li>
</ul>

JavaScript

$(document).ready(function(){
    console.log(
        $('.startpoint').closest("*[data-findme]")
    );
});