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="myform">
    <input type="text" name="field1" />
    <br/>
    <input type="text" name="field2" />
    <br/>
    <input type="submit" />
</form>
<br/>
<button id="remove">remove all rules</button>
<br/>
<button id="add">make all required</button>
<a href="http://docs.jquery.com/Plugins/Validation" target="_blank">Validation Documentation</a>

CSS

a {
    display: block;
    position: absolute;
    bottom: 0;
}

JavaScript

$(document).ready(function () {

    // initilize the plugin
    $('#myform').validate({
        rules: {
            field1: {
                required: true
            },
            field2: {
                required: true
            }
        },
        submitHandler: function (form) { // for demo
            alert('valid form');
            return false;
        }
    }); // end initialize

    // remove all rules on click
    $('#remove').on('click', function () {
        $('input[name^="field"]').each(function () {
            $(this).rules('remove');
        });
    });

    // add all rules on click
    $('#add').on('click', function () {
        $('input[name^="field"]').each(function () {
            $(this).rules('add', {
                required: true
            });
        });
    });

});