How to convert nsnumber to nsstring in objective c?
Is objective c dynamically typed?
What is block in objective c?
Why do we require class extension?
What is a class in objective c?
Does copy increase retain count?
What is the difference between class and category?
What does the gc () method?
What is nsmutabledictionary?
What is nonatomic in objective c?
What is id type in objective c?
What is .m file in objective c?
What can objective c be used for?
What is gcd? What are its advantages over nsthread?
What is autoclosure?