docs: function () {
              var bind = this._bindingListeners.value;
              if (bind) {
  
                  var selectedIndex = this._domElt.selectedIndex;
                  var value = "";
                  if (selectedIndex != -1) {
                      value = this.options[this._domElt.selectedIndex].value;
                  }
                  var newValue = this._transform(bind.transform, value, "fromWidget");
                  ariaUtilsJson.setValue(bind.inside, bind.to, newValue, bind.cb);
  
              }
  
          }