code: function (domObject) {
                      var selector = this._selector;
                      if (selector) {
                          if (this._globalSelector) {
                              return document.querySelector(selector);
                          } else {
                              return domObject.querySelector(selector);
                          }
                      }
                      return undefined;
                  }
docs: Apply selection starting from the provided object
  
  @param {Object} domObject
  @return {Object|undefined}
  @private