TaskController: TaskController() constructor
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
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
Syntax
new TaskController()
new TaskController(options)
Parameters
optionsOptional-
An object with the following properties:
priorityOptional-
The priority of the signal associated with this
TaskController. One of:"user-blocking","user-visible"(default),"background".
Examples
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" });
Specifications
| Specification |
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| Prioritized Task Scheduling # dom-taskcontroller-taskcontroller |
Browser compatibility
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TaskController() constructor
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