Which of the following is the correct syntax for a safe Swift for-in loop over an array named numbers?

easy📝 Syntax Q12 of 15

Swift - Loops

Which of the following is the correct syntax for a safe Swift for-in loop over an array named numbers?

Aloop number in numbers { print(number) }

Bfor (int i = 0; i < numbers.count; i++) { print(numbers[i]) }

Cfor number to numbers { print(number) }

Dfor number in numbers { print(number) }

Step-by-Step Solution

Solution:

Step 1: Identify correct Swift loop syntax
Swift uses for variable in collection { } syntax for safe iteration.
Step 2: Check each option
Only for number in numbers { print(number) } matches correct syntax; A uses invalid 'loop', B is C-style (not Swift), C uses invalid 'to' keyword.
Final Answer:
for number in numbers { print(number) } -> Option D
Quick Check:
Swift for-in syntax = for number in numbers { print(number) } [OK]

Quick Trick: Use 'for item in collection' for safe Swift loops [OK]

Common Mistakes:

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