What is initialization in iOS?

What is formal protocol in iOS Objective-C?

What are the programming Languages are used for iOS apps development?

What is id in Objective-C ?

What are the Objective-C classes used to communicate from application to the web server?

What is the protocol in Objective- C iOS?

How to filter array using predicate on a custom property of object in Objective- C iOS?

What is Objective c?

Who invented Objective c?

What is meaning of copy keyword in ios?

What is block in objective c?

What are the characteristics of the category in Objective C?