JSFiddle - React, Tailwind, and code Playground

by Rich Costello

HTML

<form id="views-exposed-form-drive-clean-incentive-search-page-1">
    Username<br />
    <input type="text" id="edit-submit-drive-clean-incentive-search" name="username" /><br />
    Password<br />   
    <input type="submit" id="register" value="Register" disabled="disabled" />
</form>
<div id="test">
</div>

JavaScript

(function() {
    $('views-exposed-form-drive-clean-incentive-search-page-1 > input').keyup(function() {

        var empty = false;
        $('views-exposed-form-drive-clean-incentive-search-page-1 > input').each(function() {
            if ($(this).val() == '') {
                empty = true;
            }
        });

        if (empty) {
            $('#register').attr('disabled', 'disabled');
        } else {
            $('#register').removeAttr('disabled');
        }
    });
})()