let parent = Task { let child = Task { print("child started, isCancelled = ", Task.isCancelled) // NO false for index in (1...[phone]) { print(index) } print("child finished, isCancelled = ", Task.isCancelled) // } await child.value } try? await Task.sleep(nanoseconds: 1_000_000_000) // 1 second parent.cancel() /////// let parent = Task { async let child: Void = { print("child started, isCancelled =", Task.isCancelled) for index in (1...[phone]) { print(index) } print("child finished, isCancelled =", Task.isCancelled) }() await child } try? await Task.sleep(nanoseconds: 1_000_000_000) // 1 second parent.cancel()