JSFiddle - React, Tailwind, and code Playground

HTML

<div id="1">
    <div>
        <button onclick="teste('#s', this);">Pronto</button>
    </div>
</div>

<div id='s'></div>

JavaScript

function teste($x, self) {
    $el = $(self).closest('[id]').attr('id');
    $($x).html($el);
}