What is id type in objective c?
What is id?
Does objective c support multiple inheritance?
What is the difference between property and instance variable?
What does mean in xcode?
What's the difference between a thread safe and a thread unsafe function?
Can you differentiate polymorphism from abstraction?
How does dispatch_once manages to run only once?
Is objective-c is used in window also?
Is there function overloading in objective-c?
What is difference between c and objective c?
Explain the types of protocol?
Is objective c the same as c++?
Which is better swift or objective c?
What is hashable?