code: function (data) {
                          // convert {0: "Jan", 1: "Feb", ...} to ["Jan", "Feb", ...]
                          return (Object.keys(data) || []).reduce(
                              function (rslt, el) {
                                  rslt.push(data[el]);
                                  return rslt;
                              },
                              []
                          );
                      }
docs: Configure to use locale names by default