The actual worker that is used, depending on browser support it can be either a SharedWorker or a normal Worker.
Is an EventListener that is called whenever an ErrorEvent of type error event occurs.
-Is an EventListener that is called whenever an ErrorEvent of type error event occurs.
-An EventListener called when MessageEvent of type message is fired on the port—that is, when the port receives a message.
-An EventListener called when MessageEvent of type message is fired on the port—that is, when the port receives a message.
-An EventListener called when a MessageEvent of type MessageError is fired—that is, when it receives a message that cannot be deserialized.
-An EventListener called when a MessageEvent of type MessageError is fired—that is, when it receives a message that cannot be deserialized.
-Returns a MessagePort object used to communicate with and control the shared worker.
-Registers an event handler of a specific event type on the EventTarget
-Disconnects the port, so it is no longer active.
-Dispatches an event to this EventTarget.
-Clones message and transmits it to worker's global environment. transfer can be passed as a list of objects that are to be transferred rather than cloned.
-Removes an event listener from the EventTarget.
-Starts the sending of messages queued on the port (only needed when using EventTarget.addEventListener; it is implied when using MessagePort.onmessage.)
-Immediately terminates the worker. This does not let worker finish its operations; it is halted at once. ServiceWorker instances do not support this method.
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indicates if SharedWorker is supported, in the global scope
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A polyfill class for
-SharedWorker, it accepts a URL/string as well as any other options the spec. allows forSharedWorker. It supports all the same methods and properties as the original, except it adds compatibility methods and properties for older browsers that don't supportSharedWorker, so, it can switch to normalWorkersinstead.