[Solved] Which of the following is the correct way to declare an async function in Swift? — Ans: func fetchData() async throws -> String {} | iOS Swift

iOS Swift - Concurrency

Which of the following is the correct way to declare an async function in Swift?

Afunc fetchData() async throws -> String {}

Basync func fetchData() -> String {}

Cfunc async fetchData() throws -> String {}

Dfunc fetchData() throws async String {}

Step-by-Step Solution

Solution:

Step 1: Recall Swift async function syntax
In Swift, async comes after the parameter list and before the return type.
Step 2: Match options to correct syntax
Only func fetchData() async throws -> String {} matches the correct syntax: func name() async throws -> Type {}.
Final Answer:
func fetchData() async throws -> String {} -> Option A
Quick Check:
Async keyword after () = C [OK]

Quick Trick: Async keyword goes after function parameters () [OK]

Common Mistakes:

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