What are the features is ios 12.1?
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What is mvc? Mvc architecture of iphone app.
What is the difference between atomic and nonatomic properties?
What are all the difference between categories and subclasses in iOS operating system?
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Tell about block and GCD
Assume that an app is not in foreground but is still executing code. In which state will it be in?
Whats the difference between frame and bounds?
What is abstract class in ios?
What is the use of appdelegate in ios?
What happens if the methods doesn’t exist?
How are non-atomic and atomic properties different? Which one is the default property for synthesized properties?
What are the differences between categories and extensions?
What are the sorts of ios binaries you can make utilizing xcode?