The WorkerGlobalScope interface of the Web Workers API is an interface representing the scope of any worker. Workers have no browsing context; this scope contains the information usually conveyed by Window objects — in this case event handlers, the console or the associated WorkerNavigator object. Each WorkerGlobalScope has its own event loop.

API Interface NeedsBrowserCompatibility Reference WorkerGlobalScope Workers

The dump() method of the WorkerGlobalScope interface allows you to write a message to stdout — i.e. in your terminal, in Firefox only. This is the same as Firefox's window.dump, but for workers.

API dump Method Reference Web Workers WorkerGlobalScope

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

API close Method Reference Référence Web Workers WorkerGlobalScope

API Property Read-only Reference Référence Web Workers WorkerGlobalScope

The importScripts() method of the WorkerGlobalScope interface synchronously imports one or more scripts into the worker's scope.

API importScripts Method Reference Référence Web Workers WorkerGlobalScope

The location read-only property of the WorkerGlobalScope interface returns the WorkerLocation associated with the worker. It is a specific location object, mostly a subset of the Location for browsing scopes, but adapted to workers.

API Location Property Reference Référence Web Workers WorkerGlobalScope

The navigator read-only property of the WorkerGlobalScope interface returns the WorkerNavigator associated with the worker. It is a specific navigator object, mostly a subset of the Navigator for browsing scopes, but adapted to workers.

API Navigator Property Reference Référence Web Workers WorkerGlobalScope

The onclose property of the WorkerGlobalScope interface represents an EventHandler to be called when the close event occurs and bubbles through the Worker.

API onclose Property Reference Référence Web Workers WorkerGlobalScope

The onerror property of the WorkerGlobalScope interface represents an EventHandler to be called when the error event occurs and bubbles through the Worker.

API EventHandler onerror Property Reference Référence Web Workers WorkerGlobalScope

The onlanguagechange property of the WorkerGlobalScope interface represents an EventHandler to be called when the languagechange event occurs and bubbles through the Worker.

API onlanguagechange Property Reference Référence Web Workers WorkerGlobalScope

The onoffline property of the WorkerGlobalScope interface represents an EventHandler to be called when the offline event occurs and bubbles through the Worker.

API onoffline Property Reference Référence Web Workers WorkerGlobalScope

The ononline property of the WorkerGlobalScope interface represents an EventHandler to be called when the online event occurs and bubbles through the Worker.

API ononline Property Reference Référence Web Workers WorkerGlobalScope

The  performance read-only property of the WorkerGlobalScope interface returns a Performance object to be used on the worker.

API CheckExample Performance Property Read-only Reference Référence WorkerGlobalScope

The self read-only property of the WorkerGlobalScope interface returns a reference to the WorkerGlobalScope itself. Most of the time it is a specific scope like DedicatedWorkerGlobalScope,  SharedWorkerGlobalScope, or ServiceWorkerGlobalScope.

API Property Reference Référence self Web Workers WorkerGlobalScope

API Experimental Expérimental Property Reference Référence Service Workers Web Workers WorkerGlobalScope