The close() method of the SharedWorkerGlobalScope interface discards any tasks queued in the SharedWorkerGlobalScope's event loop, effectively closing this particular scope.
close()None.
None (undefined).
If you want to close your worker instance from inside the worker itself, you can 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.