Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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(init)


init Optional

An object with the following properties:

priority Optional

The 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'});


Prioritized Task Scheduling
# dom-taskcontroller-taskcontroller

Browser compatibility

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