delay

delay.swift

import Foundation

// >= iOS 16
                        
var task: Task<(), Never>?

func delay(interval: Duration = .seconds(1),
           operation: @escaping () -> Void) {
    task = Task {
        do {
            try await Task.sleep(for: interval)
            operation()
        } catch {
            // TODO
        }
    }
}

delay {
    print("go!")
}

//delay(.seconds(2)) {
//    print("go!")
//}

for i in 0...5 {
    delay(interval: .seconds(5)) {
        print(i)
    }
}

// 5 seconds later.

// 0
// 1
// 2
// 3
// 4
// 5