What will be the final value of "a.data" and "b.data" after following codes are executed?

struct A { var data: Int = 2 } var a = A() var b = a var c = b c.data = 10 a.data = 5

How will ARC handle 'Country' instance and 'country2' reference when 'country1' is set to 'nil'?

What is true about Memory management in Swift?

To which of these types does ARC apply?

Why are IBOutlets declared with a weak attribute by default?

How could we declare a custom protocol that inherits from Equatable?

Output of code ? import UIKit import AVFoundation var p: AVAudioPlayer?

Based on var index = UInt8.max, which of the following operation results to the value of zero for var index?

Correct keyword for defining a constant in Swift?

The following keyword in the context of a Switch statement is required to force the execution of a subsequent case?

Extend the capabilities of our theoretical class, MyClass to conform to protocol MyProtocol?