JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.10.0/jquery.validate.min.js"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.10.0/additional-methods.js"></script>
<form id="formNewAgreements" name="formNewAgreements" action="submit_x1.php" method="post" enctype="multipart/form-data" target="hidden-form">
    <input name="field" required="required" />
    <input name="field2" required="required" />
    <input type="submit" name="submitForm" value="Confirm">
</form>

JavaScript

$(document).ready(function () {

    var completeform = $("#formNewAgreements");
    completeform.validate({
        submitHandler: function (form) {
            // ajax here
            alert('form is valid - fire the ajax');
            return false; // block default form action
        }
    });

});