Limited availability
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)
Parameters
options
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" });
Specifications Browser compatibility
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4