detached(priority:operation:)
Runs the given throwing operation asynchronously as part of a new top-level task.
- iOS 13.0+
- macOS 10.15+
- tvOS 13.0+
- watchOS 6.0+
@discardableResult static func detached(priority: TaskPriority? = nil, operation: @escaping () async throws -> Success) -> Task<Success, Failure>Parameters
- priority
The priority of the task.
- operation
The operation to perform.
Returns
A reference to the task.
Overview
If the operation throws an error, this method propagates that error.
Don’t use a detached task if it’s possible to model the operation using structured concurrency features like child tasks. Child tasks inherit the parent task’s priority and task-local storage, and canceling a parent task automatically cancels all of its child tasks. You need to handle these considerations manually with a detached task.
You need to keep a reference to the detached task if you want to cancel it by calling the Task.cancel() method. Discarding your reference to a detached task doesn’t implicitly cancel that task, it only makes it impossible for you to explicitly cancel the task.