Why is delegate weak in ios?
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Whats the difference between NSArray and NSMutableArray?
How do you setup/initialise a core data stack in your application? Is this activity performed on main thread? If not, why?
In which language is ios written?
What is messaging? How does the runtime handle message passing?
What is protocol in ios swift?
How to export your private key from your keychain in iphone development?
What is difference strong and weak reference ? Explain.
what is dispatchQueue?
What is a weak var?
What are the functions of managed object context?
Which devices will this work with ios?
What json framework is supported by ios (iphone os)?