Small jquery plugin that adds some functionality to jquery, eg:
Check if an item is empty
Check whether an item exists
Take a parameter in the querystring of the current Web page.
/*!
 * jQuery Sambuca Plugin v0.1
 * https://dotmaui.com/
 *
 * Copyright .Maui Project and other contributors
 * Released under the MIT license
 * https://opensource.org/licenses/MIT
 *
 * Date: 2017-01-10T20:30Z
 */
(function($) {
    $.fn.isEmpty = function() {
        if (this.prop("tagName") === "INPUT" || this.prop("tagName") === "TEXTAREA") {
            return (this.val() === "");
        } else {
            return (this.html() === "");
        }
    };
    $.fn.isEmptyOrWhiteSpace = function() {
        if (this.prop("tagName") === "INPUT" || this.prop("tagName") === "TEXTAREA") {
            return $.trim(this.val()) === "";
        } else {
            return $.trim(this.html()) === "";
        }
    };
    $.fn.exists = function() {
        return (this.length > 0);
    };
    $.urlParam = function(name) {
        var results = new RegExp('[\?&]' + name + '=([^]*)').exec(window.location.href);
        if (results === null)
            return "";
        return results[1] || 0;
    }
}(jQuery));
This plugin is also available through our CDN:
https://cdn.dotmaui.com/dotmaui/js/jquery.sambuca-0.1.min.js