In what situations is the await operator used together with asynchronous methods?

The await operator is used in Swift in conjunction with asynchronous methods to suspend the execution of the current function until the asynchronous operation completes. This allows writing asynchronous code that looks and reads like synchronous code, simplifying handling of results and errors.

Situations where await is used:

• Performing network requests (e.g., loading data from a server).
• Reading or writing files that may take time.
• Performing long computations or input/output operations.

Example:

func fetchUserData() async throws -> User {
    let url = URL(string: "https://api.example.com/user")!
    let (data, _) = try await URLSession.shared.data(from: url)
    let user = try JSONDecoder().decode(User.self, from: data)
    return user
}

Here, await suspends the function until data is received from the network.