Which is the correct optional form of a down cast operator?
Correct Answer: as?
Explanation:
Note: This Question is unanswered, help us to find answer for this one
Swift Skill Assessment
Your Skill Level: Poor
Retake Quizzes to improve it
More Swift MCQ Questions
To loop through a range of the numbers 1-9 without using 9, you would write…
Which of these is an invalid constant or variable declaration?
AnyObject can represent:
What is the name of the following function: func potteryBarn (name: String, score: Int) -> String { return 'Hello (name)! Your score is (score).'}
Which keyword do you use to define a function?
What is the return type of the following code? func nameFunc() -> String { return 'Jhon' }
The following attribute can be used to allow a protocol to contain optional functions and to be used in ObjC?
Suppose below variable declaration, select a right answer? import UIKit var str = 'string' var ŝanĝiĝema = 'хувьсагч' var & = '&'
How can you fix the missing characters for the following code? func userScore -> Bool { return true }
How to hide status bar in iOS app with Swift as follows?