Do functions have data types in swift ?

1 for : yes 0 for: no

How to find the length of an Array?

What is the data type used to represent URLs in Swift?

What are the different types of subscripts?

Where are failable initializers used in the Swift standard library?

What happens if a programmer tries to call a deinitializer directly in Swift?

Other than the standard inheritance type syntax for conforming to protocols, what is the other way to conform to protocols in Swift?

Which of the following is the correct way to define an unsafe unowned reference in Swift?

What will be the output of the following Swift code?

var numbers = [1, 4, 3, 2, 4]

numbers = numbers.sorted(by: { num1, num2 in num1 < num2 })

print(numbers)

What should the following closure return in order to sort the array in descending order ?

var numbers = [1,4,3,2]

numbers = numbers.sorted(by: {(num1: Int, num2: Int) -> Bool in 

      return //The expression goes here

})