WorkerGlobalScope extension type

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.

This interface is usually specialized by each worker type: DedicatedWorkerGlobalScope for dedicated workers, SharedWorkerGlobalScope for shared workers, and ServiceWorkerGlobalScope for ServiceWorker. The self property returns the specialized scope for each context.

on
Implemented types
Implementers

Properties

caches → CacheStorage
no setter
crossOriginIsolated → bool
no setter
crypto → Crypto
no setter
fonts → FontFaceSet
no setter
hashCode → int
The hash code for this object.
no setterinherited
indexedDB → IDBFactory
no setter
isSecureContext → bool
no setter
location → WorkerLocation
no setter
no setter
onerror ↔ OnErrorEventHandler?
getter/setter pair
onlanguagechange ↔ EventHandler?
getter/setter pair
onoffline ↔ EventHandler?
getter/setter pair
ononline ↔ EventHandler?
getter/setter pair
onrejectionhandled ↔ EventHandler?
getter/setter pair
onunhandledrejection ↔ EventHandler?
getter/setter pair
origin → String
no setter
performance → Performance
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
self → WorkerGlobalScope
no setter
trustedTypes → TrustedTypePolicyFactory
no setter

Methods

addEventListener(String type, EventListener? callback, [JSAny options]) → void
The addEventListener() method of the EventTarget interface sets up a function that will be called whenever the specified event is delivered to the target.
inherited
atob(String data) → String
btoa(String data) → String
clearInterval([int id]) → void
clearTimeout([int id]) → void
createImageBitmap(ImageBitmapSource image, [JSAny optionsOrSx, int sy, int sw, int sh, ImageBitmapOptions options]) → JSPromise<ImageBitmap>
dispatchEvent(Event event) → bool
The dispatchEvent() method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the appropriate order. The normal event processing rules (including the capturing and optional bubbling phase) also apply to events dispatched manually with dispatchEvent().
inherited
fetch(RequestInfo input, [RequestInit init]) → JSPromise<Response>
importScripts(String urls) → void
The importScripts() method of the WorkerGlobalScope interface synchronously imports one or more scripts into the worker's scope.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
queueMicrotask(VoidFunction callback) → void
removeEventListener(String type, EventListener? callback, [JSAny options]) → void
The removeEventListener() method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener from the target. The event listener to be removed is identified using a combination of the event type, the event listener function itself, and various optional options that may affect the matching process; see Matching event listeners for removal.
inherited
reportError(JSAny? e) → void
setInterval(TimerHandler handler, JSAny? arguments, [int timeout]) → int
setTimeout(TimerHandler handler, JSAny? arguments, [int timeout]) → int
structuredClone(JSAny? value, [StructuredSerializeOptions options]) → JSAny?
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited