JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#">Click here to set</a>
<div id="subs">This will have title added to the div</div>

JavaScript

$( function() {
  $('a').on('click', function() {
  $('#subs').prop('title', function() {
       return "I am a title";
  });
  });
});