JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<button id="btnSubmit" type="submit" class="btn btn-warning btn-lg">Submit!</button>
</div>

JavaScript

$('#resForm').validate({


  submitHandler: function(form) {
// disable submit button
  $('#btnSubmit').prop('disabled', true);
    $.ajax({
      //..... typical ajax stuff .....
      success: function(data) {
        alert(data);
        $('success').html(data);
        // enable reserve button again
        $('#btnSubmit').prop('disabled', false);
      },
      error: function (jqXHR, textStatus, errorThrown) {
        // console.log(jqXHR);
      }
    });
  }
});