JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://raw.github.com/jonjaques/jquery-validation/master/jquery.validate.js"></script>
<form id="thaForm">
<input class="required" type="text">
<button type="submit">Submit</button>
</form>

JavaScript

jQuery.validator.setDefaults({ 
    highlight: function(el, error, valid, _orig){
        _orig(el, error, valid);
        console.log("That's not valid, bro!");
    }
});


$('#thaForm').validate();