Note: This feature is available in Web Workers.
The TaskController() constructor creates a new TaskController object, optionally setting the initial priority of its associated signal.
If no priority is set, the signal priority defaults to user-visible
new TaskController()
new TaskController(options)options OptionalAn object with the following properties:
priority OptionalThe priority of the signal associated with this TaskController. One of: "user-blocking", "user-visible" (default), "background".
This code shows how to construct a task controller that has a signal with default priority (user-visible).
const controller = new TaskController();To construct a task controller that has a specific signal priority, pass the priority as a property of the optional argument.
controller2 = new TaskController({ priority: "user-blocking" });