code: function (array) {
                          var total = 0,
                              i;
                          for (i = 0; i < array.length; i += 1) {
                              if (isNaN(array[i])) {
                                  total = undefined;
                                  break;
                              } else {
                                  total += parseFloat(array[i]);
                              }
                          }
                          return total;
                      }
docs: Draw ascending by default