Helps with debug logging right in the taskpane for the full clients

console.js

/*!
 * logger JavaScript Library v1.0.1
 * http://davecra.com
 *
 * Copyright David E. Craig and other contributors
 * Released under the MIT license
 * https://tldrlegal.com/license/mit-license
 *
 * Date: 2016-08-09T12:00EST
 */
var console = (function () {
    "use strict";

    var console = {};

    console.initialize = function () {
        /// <summary>
        /// Add a textarea/console to the bottom of the page and then setup the logger
        /// </summary>
        /// <param name="DebugMode" type="Boolean">If debug mode enabled - we show the console for logging</param>
        var debugMode = getParameterByName("Debug") == "true";
        if (debugMode) {
            // add the console to the screen
            $("body").append("<textarea id='log' style='width:100%' cols='2000' rows='7' wrap='off'></textarea>");
            $("body").append("<button id='saveLog'>Copy Log to Clipboard</button>");
            $("#saveLog").click(function () {
                var field = $("#log");
                field.select();
                document.execCommand("copy");
            });
        }

        console.log = function (msg) {
            /// <summary>
            /// GLOBAL: Logs to the textarea on the page
            /// </summary>
            /// <param name="msg" type="string">The message to log</param>
            if (debugMode) {
                var d = new Date(Date.now());
                var current = d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds();
                var data = $("#log").val();
                $("#log").val(current + " - " + msg + "\r\n" + data);
            }
        };
    }

    function getParameterByName(name) {
        /// <summary>
        /// Get a parameter form the URL
        /// </summary>
        /// <param name="name" type="String">Name of the parameter to get from the query string</param>
        /// <returns type="String">Value of the paramater</returns>
        var url = window.location.href;
        name = name.replace(/[\[\]]/g, "\\$&");
        var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
            results = regex.exec(url);
        if (!results) return null;
        if (!results[2]) return '';
        return decodeURIComponent(results[2].replace(/\+/g, " "));
    }

    return console;
})();