What happens at runtime with the following: dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); dispatch_apply(10, queue, ^(size_t index) { NSLog(@"%zu", index); });

What can you say about the code: NSString * str = [NSString stringWithFormat:@""]; [str release];

What is the last chance for an object to handle a message?

How to restore Consumable In-App Purchases?

A UITableViewController's tableview must have its delegate explicitly set by the developer.

What are @try and @catch?

Which one contains an INCORRECT concept regarding Objective-C programming ?

Which one is NOT correct regarding memory management in Objective-C ?

Memory management is one of the most important processes in any programming language

In Objective-C, retain counts are the way in which memory is managed.

Objective-C allows you to define protocols, which declare the methods expected to be used for a particular situation.