[Solved] Which statement about nested functions in Swift is TRUE? — Ans: Nested functions can access variables from their enclosing function | Swift

Swift - Functions

Which statement about nested functions in Swift is TRUE?

ANested functions must be declared outside any other function

BNested functions cannot return values

CNested functions are automatically executed when the outer function runs

DNested functions can access variables from their enclosing function

Step-by-Step Solution

Solution:

Step 1: Check variable access rules
Nested functions can use variables declared in their outer function because they share the same scope chain.
Step 2: Evaluate other options
Nested functions can return values, must be declared inside another function, and are not executed automatically unless called.
Final Answer:
Nested functions can access variables from their enclosing function -> Option D
Quick Check:
Nested functions access outer variables = True [OK]

Quick Trick: Nested functions share outer function's variables [OK]

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Which statement about nested functions in Swift is TRUE?