What is nsoperation and nsoperationqueue in ios?
Explain app's state transitions when it gets launched?
Does ios have garbage collection?
What json framework supported by ios?
What is the difference between atomic and nonatomic properties?
Explain ios switching applications?
What is grand central dispatch ios?
How do you usually persist data on ios? : IOS Architect
what is the difference between nonatomic & atomic ? which is thread safe and why
What is nsfetchedresultscontroller?
Major difference between delegate and notification?
What makes react native special for ios?
What is nonatomic?