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Which of the following is the correct syntax to create a type alias named Age for the Int type in Swift?

easy📝 Syntax Q12 of 15
Swift - Variables and Constants

Which of the following is the correct syntax to create a type alias named Age for the Int type in Swift?

Atype Agealias = Int
Balias type Age = Int
Ctypealias Age = Int
DAge typealias = Int
Step-by-Step Solution
Solution:

  1. Step 1: Recall the correct syntax for typealias

    The syntax is: typealias NewName = ExistingType.

  2. Step 2: Match the syntax with the options

    typealias Age = Int matches the correct syntax exactly.

  3. Final Answer:

    typealias Age = Int -> Option C

  4. Quick Check:

    Correct syntax = typealias Name = Type [OK]
Quick Trick: Syntax always starts with 'typealias' keyword [OK]
Common Mistakes:
  • Swapping the order of 'typealias' and name
  • Using 'alias type' instead of 'typealias'
  • Missing the '=' sign

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