What is the output when following code is executed? import UIKit import AVFoundation var p: AVAudioPlayer? func func(filename:String) { let url = NSBundle.mainBundle().URLForResource(filename, withExtension: "caf")! do { p = try AVAudioPlayer(contentsOfURL: url) guard let p = p else { return } … … … p.prepareToPlay() p.play() } catch let error as NSError { print(error.description) } }

If a class is named 'MyClass' with a nested enum called 'Status', how do you indicate that a variable is an enum of type 'Status' outside the context of 'MyClass'? class MyClass { enum Status { case On, Off } }

Appropriate syntax for dispatching a heavy operation to a background thread?

How to hide status bar in iOS app with Swift as follows?

How can you fix the missing characters for the following code? func userScore -> Bool { return true }

Suppose below variable declaration, select a right answer? import UIKit var str = 'string' var ŝanĝiĝema = 'хувьсагч' var & = '&'

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

What is the type of Swift String, Dictionary, Array?

Which keyword do you use to define a function?

What is the name of the following function: func potteryBarn (name: String, score: Int) -> String { return 'Hello (name)! Your score is (score).'}

AnyObject can represent: