JSFiddle - React, Tailwind, and code Playground

by Dave Mednick

HTML

<form>
    <table>
        <tr id="">
            <td width='5%'>
                <label>Row 1 :</label>
            </td>
            <td width='10%'>
                <input type='text' class="required" name="text1" />
            </td>
        </tr>
        <tr id="">
            <td width='5%'>
                <label>Row 2 :</label>
            </td>
            <td width='10%'>
                <input type='text' class="required" name="text2" />
            </td>
        </tr>
        <tr id="">
            <td width='5%'>
                <label>Row 3 :</label>
            </td>
            <td width='10%'>
                <input type='text' class="required" name="text3" />
            </td>
        </tr>
        <tr id="">
            <td width='5%'>
                <label>Row 4 :</label>
            </td>
            <td width='10%'>
                <input type='text' class="required" name="text4" />
            </td>
        </tr>
    </table>
    <tr>
        <td colspan="2">
            <input type="button" id="btnSubmit" value="Submit" />
        </td>
    </tr>
</form>

JavaScript

$(function () {
    $('#btnSubmit').click(function () {
        var requireds = $(':text.required');
        requireds.each(function (i) {
            if ($(this).val() === "") {
                var label = $(this).closest('tr').find('label').text();
                alert(label + 'is empty!');
            }
        });
    });
});