[Solved] Consider this Swift code:func fetchData() async -> String { return "Hello" } Task { let greeting = await fetchData() print(greeting + " World") }What will be printed? | iOS Swift

iOS Swift - Concurrency

Consider this Swift code:

func fetchData() async -> String {
  return "Hello"
}

Task {
  let greeting = await fetchData()
  print(greeting + " World")
}

What will be printed?

ACompilation error

BHelloWorld

COptional("Hello") World

DHello World

Step-by-Step Solution

Solution:

Step 1: Analyze async function return
The function returns the string "Hello" asynchronously, awaited properly.
Step 2: Check string concatenation
The print statement concatenates "Hello" and " World" with a space, so output is "Hello World".
Final Answer:
Hello World -> Option D
Quick Check:
Hello World output [OK]

Quick Trick: Await returns actual value, so string concatenation works normally [OK]

Common Mistakes:

Master "Concurrency" in iOS Swift

9 interactive learning modes - each teaches the same concept differently

More iOS Swift Quizzes

Consider this Swift code: