[Solved] What does marking a function with async in Swift mean? — Ans: The function can pause and resume without blocking the app's main thread. | iOS Swift

iOS Swift - Concurrency

What does marking a function with async in Swift mean?

AThe function cannot call other functions.

BThe function runs only once and then stops.

CThe function must return an integer value.

DThe function can pause and resume without blocking the app's main thread.

Step-by-Step Solution

Solution:

Step 1: Understand async function behavior
Async functions allow pausing and resuming work without freezing the app's main thread.
Step 2: Compare options with async meaning
Only The function can pause and resume without blocking the app's main thread. correctly describes this behavior; others are unrelated or incorrect.
Final Answer:
The function can pause and resume without blocking the app's main thread. -> Option D
Quick Check:
Async means non-blocking pause/resume = A [OK]

Quick Trick: Async means work happens without freezing UI [OK]

Common Mistakes:

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