сортировка массива

     [_dataArray removeAllObjects];

    NSArray *athele = [sportResult.matchDetails objectForKey:@"athleteResults"];

    if ([athele isKindOfClass:[NSArray class]]) {

        [_dataArray addObjectsFromArray:[athele sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {

            

            int rank1 = [[NSString validateString:[obj1 objectForKey:@"rank"]] integerValue];

            int rank2 = [[NSString validateString:[obj2 objectForKey:@"rank"]] integerValue];

            if(rank1 == 0) return NSOrderedDescending;

            if(rank2 == 0) return NSOrderedAscending;

            return [@(rank1) compare:@(rank2)];

            

        }]];

    }