What will be the output of this Swift code?

medium📝 Predict Output Q4 of 15

Swift - Data Types

typealias Age = Int
let myAge: Age = 30
print(myAge)

AAge

BCompilation error

CmyAge

D30

Step-by-Step Solution

Solution:

Step 1: Understand typealias usage
The alias Age is just another name for Int, so myAge is an integer with value 30.
Step 2: Predict print output
Printing myAge outputs the integer value 30.
Final Answer:
30 -> Option D
Quick Check:
typealias does not change value, prints 30 [OK]

Quick Trick: typealias does not change data, just names [OK]

Common Mistakes:

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