What is delegate in ios objective c?
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Explain about NSURL Connection Delegates
Explain formal protocols?
What is race condition in ios?
What is nspersistentstorecoordinator?
what are fetched properties? How do you create a fetched property?
Which framework delivers event to custom object when app is in foreground?
Explain the significance of autorelease?
What is a difference between stack and heap memory?
Bundle & document directory, sandbox ?
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Who calls the dealloc strategy? Would we be able to implement dealloc in arc? In the event that indeed, what is the need to do that?
What is gcd in ios swift?