Web/API/WorkerGlobalScope/close

ObsoleteThis feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

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.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
close Deprecated'Non-standard'	Chrome Full support 4	Edge Full support 12	Firefox Full support 3.5	IE Full support Yes	Opera Full support 11.5	Safari Full support 4	WebView Android Full support 37	Chrome Android Full support Yes	Firefox Android Full support 4	Opera Android ?	Safari iOS ?	Samsung Internet Android Full support Yes
close() moved to DedicatedWorkerGlobalScope and SharedWorkerGlobalScope	Chrome Full support 52	Edge Full support ≤79	Firefox Full support 54	IE ?	Opera ?	Safari ?	WebView Android Full support 52	Chrome Android Full support 52	Firefox Android Full support 54	Opera Android ?	Safari iOS ?	Samsung Internet Android Full support 6.0

Legend

Full support  

Full support

Compatibility unknown  

Compatibility unknown

Non-standard. Expect poor cross-browser support.'

Non-standard. Expect poor cross-browser support.

Deprecated. Not for use in new websites.'

Deprecated. Not for use in new websites.

See also

WorkerGlobalScope

WorkerGlobalScope.close() by Mozilla Contributors is licensed under CC-BY-SA 2.5.