A

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Q. Which of the following is the correct way to declare an optional integer?

  • (A) var age = ?Int
  • (B) var age: Int?
  • (C) var age: Optional<Int>
  • (D) Both 2 and 3
  • Correct Answer - Option(D)
  • Views: 27
  • Filed under category Swift (iOs)
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Explanation by: Admin

`Int?` and `Optional<Int>` are functionally the same in Swift.

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