InitializerConcurrency

init(priority:operation:)

Runs the given nonthrowing operation asynchronously as part of a new top-level task on behalf of the current actor.

  • iOS 13.0+
  • macOS 10.15+
  • tvOS 13.0+
  • watchOS 6.0+
@discardableResult init(priority: TaskPriority? = nil, operation: @escaping () async -> Success)

Parameters

priority

The priority of the task. Pass nil to use the priority from Task.currentPriority.

operation

The operation to perform.

Overview

Use this function when creating asynchronous work that operates on behalf of the synchronous function that calls it. Like Task.detached(priority:operation:), this function creates a separate, top-level task. Unlike Task.detached(priority:operation:), the task created by Task.init(priority:operation:) inherits the priority and actor context of the caller, so the operation is treated more like an asynchronous extension to the synchronous operation.

You need to keep a reference to the 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.