What is meaning of 'assign' keyword?
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Difference between categories and extensions?
How to download something from the internet?
Give example scenarios when an application goes into inactive state?
Will the new design mean I have to completely relearn how to use my phone?
Why do all model object attributes get marked with @dynamic and not synthesised?
What is didreceivememorywarning method in you viewcontroller?
How do you setup/initialise a core data stack in your application?
What is singleton class in ios?
How can an operating system improve battery life while running an app?
What is datasource in ios?
What is gcd? How is it used?
What are lifecycle events of uiviewcontroller?