JSFiddle - React, Tailwind, and code Playground

HTML

<div class="change_event_box">
    1234
</div>

JavaScript

$(document).ready(function() {
    $('.change_event_box').bind("DOMSubtreeModified",function(){
      alert('changed');
    });
    
    setTimeout(function() {
        $('.change_event_box').text("4321");
    }, 5000);
});