JSFiddle - React, Tailwind, and code Playground
HTML
<div id="teste">
<select id="sel" disabled>
<option value="1" selected>1</option>
<option value="2">2</option>
</select>
</div>
<a id="btn" href="javascript:void(0);">
Habilitar
</a>JavaScript
$("#btn").click(function(){
var elemento = $('#teste').find('select');
elemento.prop('disabled', false);
});