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="radio" name="radiotest" value="0" />
    <br/>
    <input type="radio" name="radiotest" value="1" />
    <br/>
    <br/>
    <input type="submit" />
</form>
<a id="docs" href="http://docs.jquery.com/Plugins/Validation" target="_blank">Validation Documentation</a>

CSS

#docs {
    display: block;
    position: absolute;
    bottom: 0;
}

JavaScript

$(document).ready(function () {

    $('#myform').validate({
        rules: {
            radiotest: {
                required: true
            }
        },
        messages: {
            radiotest: {
                required: "please select at least one option"
            }
        },
        submitHandler: function (form) { // for demo
            alert('valid form');
            return false;
        }
    });

});