[Solved] What will be the output of the following Swift code? func greet() { func sayHello() { print("Hello") } sayHello() } greet() | Swift

Swift - Functions

What will be the output of the following Swift code?

func greet() {
    func sayHello() {
        print("Hello")
    }
    sayHello()
}
greet()

AHello

BNo output

CError: sayHello not found

DHelloHello

Step-by-Step Solution

Solution:

Step 1: Understand function calls inside nested functions
The outer function 'greet' defines 'sayHello' inside it and calls it once.
Step 2: Trace the execution
Calling 'greet()' runs 'sayHello()', which prints "Hello" once.
Final Answer:
Hello -> Option A
Quick Check:
Nested call prints once = Hello [OK]

Quick Trick: Inner function called once inside outer function [OK]

Common Mistakes:

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