WorkerGlobalScope.close()

Deprecated
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Avoid using it and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The close() method of the WorkerGlobalScope interface discards any tasks queued in the WorkerGlobalScope's event loop, effectively closing this particular scope.

Syntax

self.close();

Example

If you wanted to close your worker instance from inside the worker itself, you could call the following:

close();

close() and self.close() are effectively equivalent — both represent close() being called from inside the worker's inner scope.

Note: there is also a way to stop the worker from the main thread: the Worker.terminate method.

Specifications

Specification	Status	Comment
WHATWG HTML Living Standard The definition of 'close()' in that specification.	Living Standard

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	4	3.5 (1.9.1)	(Yes)	11.5	4
`close()` moved to `DedicatedWorkerGlobalScope` and `SharedWorkerGlobalScope`	?	54 (54)	?	?	?

Feature	Android	Chrome for Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	?	40	1.0 (1.9.1)	(Yes)	(Yes)	5.1
`close()` moved to `DedicatedWorkerGlobalScope` and `SharedWorkerGlobalScope`	?	?	54.0 (54)	?	?	?

General note: In newer browser versions, close() is available on DedicatedWorkerGlobalScope and SharedWorkerGlobalScope instead. This change was made to stop close() being available on service workers, as it isn't supposed to be used there and always throws an exception when called (see bug 1336043).

Syntax

Example

Specifications

Browser compatibility

See also

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