WorkerGlobalScope.close()

Obsolete
This feature is obsolete.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

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
close
DeprecatedNon-standard
Chrome Full support 4Edge Full support 12Firefox Full support 3.5IE Full support YesOpera Full support 11.5Safari Full support 4WebView Android Full support 37Chrome Android Full support YesFirefox Android Full support 4Opera Android ? Safari iOS ? Samsung Internet Android Full support Yes
close() moved to DedicatedWorkerGlobalScope and SharedWorkerGlobalScopeChrome Full support 52Edge Full support ≤79Firefox Full support 54IE ? Opera ? Safari ? WebView Android Full support 52Chrome Android Full support 52Firefox Android Full support 54Opera 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