text: function guid() {
      function s4() {
          return Math.floor((1 + Math.random()) * 0x10000)
                .toString(16)
                .substring(1);
      }
      return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
      s4() + '-' + s4() + s4() + s4();
  }
  
  /**
   * Logging helper for single variables
   * @param {string} sender - (optional) The calling function (there is no
   * ECMA standard way to use callee/caller in strict mode).
   * @param {*} variable - The var to log to the console
   * @param {string} varName -  Optional, will appear as a label before the var
   */
  function dd(variable, varName, sender='') {
      var varNameOutput;
  
      varName = varName || '';
      varNameOutput = varName ? varName + ':' : '';
  
      console.debug(sender + ' => ' + varNameOutput, variable, ' (' + (typeof variable) + ')');
  }
  
  export { guid, dd };
  