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Which of the following Swift code snippets correctly declares a nested function inside another function?

easy📝 Syntax Q3 of 15
Swift - Functions
Which of the following Swift code snippets correctly declares a nested function inside another function?
Afunc outer() { func inner() { print("Inside") } inner() }
Bfunc outer() { func inner() -> Int print("Inside") }
Cfunc outer() { inner() func inner() { print("Inside") } }
Dfunc outer() { func inner() { print("Inside") } } inner()
Step-by-Step Solution
Solution:
  1. Step 1: Identify correct nested function syntax

    Nested functions must be declared inside the outer function's braces.
  2. Step 2: Check function calls

    Calling the nested function inside the outer function is valid only if the call is after the nested function declaration.
  3. Final Answer:

    func outer() { func inner() { print("Inside") } inner() } -> Option A
  4. Quick Check:

    Nested functions must be declared before calling them inside the outer function. [OK]
Quick Trick: Declare nested functions inside and call after declaration [OK]
Common Mistakes:
  • Calling nested function before its declaration
  • Declaring nested function outside outer function
  • Missing braces for nested function

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