Ios engineer Interview Questions

There is no swift 6 yet, recently they have announced version swift 4.2

and also your apptitude its not swift 6 its 6th ques .

It is a series of prime number so the next element will be prime and it is 31.

Good enough to get selected .

Both

What is release?

Retain count is count of an object which determines how long will this object occupies the memory. If retain count reaches to zero; it is deallocated from the memory.

Answer to the above question should be N^10. But the interviewer didn't agree. ( very Strange )

Answer should be O(n^3)

Delegate is like telephone call, where your are aware which class is passing message to which class. Notification is like radio broadcast, where notification is fired by one class is received by none or all classes which are ready to listen/catch notification and perform actions accordingly.

Delegate is an object that acts on behalf of the coordinations with another object i.e one to one communication

Hahaha, its a computer used to develop iOS and Mac apps.

Macintosh (often called "the Mac") was the first widely-sold personal computer with a graphical user interface (GUI) and a mouse. Also the word Mac came from one kind apple fruit variety.