Sorted object in NSMutableArray

NSMutableArray-Sort

NSMutableArray *items = [self initialItems];

[items sortUsingComparator:^NSComparisonResult(id obj1, id obj2) {
                Item *i1 = obj1;
                Item *i2 = obj2;
                if (i1.code > i2.code) {
                    return (NSComparisonResult)NSOrderedDescending;
                }
                
                if (i1.code < i2.code) {
                    return (NSComparisonResult)NSOrderedAscending;
                }
                return (NSComparisonResult)NSOrderedSame;
            }
             ];