What is an instancetype?
What is difference between array and nsarray?
What is toll-free bridging and when is it useful?
What is difference between objective c and swift programming?
Which class is used to establish a connection between applications to the web server?
What do you mean by category and when to use it?
What does nonatomic mean?
Is swift based on objective c?
Are callbacks closures?
What is the definition of an objective statement?
What is the use of category in objective-c?
What is enum in objective c?
What is difference between nil and nill?
How to implement in app purchase in ios objective c?
Explain what is #import?