ManWithBear

- (void)toMeAgain {
    UIViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"myIdentifier"];
    [self.navigationController pushViewController:vc animated:YES];
}

NSArray *keys = [dict allKeys];
NSArray *sortedKeys = [keys sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
    return [(NSString*)obj1 compare:(NSString*)obj2];
}];
for (NSString *key in sortedKeys) {
    // your actions
}

- (NSArray *)componentsSeparatedByCharactersInSet:(NSCharacterSet *)separator

__block int i = 10;
void (^block) (int) = ^(int x){
    NSLog(@"%d", i); // 11
};
i++;
block (i);