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How do you correctly declare an asynchronous function in Swift that returns an integer?

easy📝 Syntax Q3 of 15
iOS Swift - Concurrency
How do you correctly declare an asynchronous function in Swift that returns an integer?
Afunc fetchData() -> async Int {}
Basync func fetchData() -> Int {}
Cfunc async fetchData() -> Int {}
Dfunc fetchData() async -> Int {}
Step-by-Step Solution
Solution:
  1. Step 1: Syntax for async functions

    In Swift, the async keyword is placed after the function signature and before the return type.
  2. Step 2: Validate options

    func fetchData() async -> Int {} correctly places async after the parentheses and before the return type.
  3. Final Answer:

    func fetchData() async -> Int {} -> Option D
  4. Quick Check:

    async goes after parentheses [OK]
Quick Trick: async keyword after parentheses [OK]
Common Mistakes:
  • Placing async before func keyword
  • Inserting async inside parameter list
  • Putting async before return type

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