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?