JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.10.0/jquery.validate.min.js"></script>
<form id="myform">
    <input type="text" class="myclass" name="field1" />
    <br />
    <input type="text" class="myclass" name="field2" />
    <br />
    <input type="text" class="myclass" name="field3" />
    <br />
    <input type="submit" />
</form>

JavaScript

$(document).ready(function () {

    $('#myform').validate({
        submitHandler: function (form) { // for demo only
            return false;
        }
    });

    // the following method must come AFTER .validate()
    $('#myform').find('.myclass').each(function () {
        $(this).rules('add', {
            required: true,
            digits: true,
            range: [1, 5],
            messages: {
                required: "Required input",
                digits: "Only digits please",
                range: "Please only enter between {0} and {1}"
            }
        });
    });

});