What is weak and strong in ios?
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What is xib?
What is nspersistentstorecoordinator?
What does 2x resolution mean?
What is delegate pattern in iOS?
what is singleton class? Why the whole application creates a single instance?
What is a fault?
Is there any garbage collector concept available in iOS?
Mention what is the use of po command in xcode?
How to find the memory leaks in mrc?
Is it safe to update to ios 13?
How to handle concurrency problems in core data?
How to register as a iphone developer?