WorkerGlobalScope

package js.html

extends EventTarget

extended by DedicatedWorkerGlobalScope, ServiceWorkerGlobalScope, SharedWorkerGlobalScope

Available on js

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.

Documentation WorkerGlobalScope by Mozilla Contributors, licensed under CC-BY-SA 2.5.

See also:

• https://developer.mozilla.org/en-US/docs/Web/API/WorkerGlobalScope

Variables

read onlycaches:CacheStorage

read onlycrypto:Crypto

read onlyindexedDB:Factory

read onlyisSecureContext:Bool

read onlylocation:WorkerLocation

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.

read onlynavigator:WorkerNavigator

onoffline:Function

Is an EventHandler representing the code to be called when the offline event is raised.

ononline:Function

Is an EventHandler representing the code to be called when the online event is raised.

read onlyorigin:String

read onlyperformance:Performance

Returns the Performance associated with the worker. It is a regular performance object, except that only a subset of its property and methods are available to workers.

read onlyself:WorkerGlobalScope

Returns a reference to the WorkerGlobalScope itself. Most of the time it is a specific scope like DedicatedWorkerGlobalScope, SharedWorkerGlobalScope or ServiceWorkerGlobalScope.

onerror:(EitherType<Event, String>, String, Int, Int, Dynamic) ‑> Dynamic

Is an EventHandler representing the code to be called when the error event is raised.

Methods

atob(atob:String):String

Throws:

null	DOMError

btoa(btoa:String):String

Throws:

null	DOMError

clearInterval(handle:Int = 0):Void

clearTimeout(handle:Int = 0):Void

createImageBitmap(aImage:ImageElement, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:VideoElement):Promise<ImageBitmap>

createImageBitmap(aImage:CanvasElement):Promise<ImageBitmap>

createImageBitmap(aImage:Blob):Promise<ImageBitmap>

createImageBitmap(aImage:ImageData):Promise<ImageBitmap>

createImageBitmap(aImage:CanvasRenderingContext2D):Promise<ImageBitmap>

createImageBitmap(aImage:ImageBitmap):Promise<ImageBitmap>

createImageBitmap(aImage:ArrayBufferView):Promise<ImageBitmap>

createImageBitmap(aImage:ArrayBuffer):Promise<ImageBitmap>

createImageBitmap(aImage:VideoElement, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

createImageBitmap(aImage:CanvasElement, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

createImageBitmap(aImage:Blob, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

createImageBitmap(aImage:ImageData, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

createImageBitmap(aImage:CanvasRenderingContext2D, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

createImageBitmap(aImage:ImageBitmap, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

createImageBitmap(aImage:ArrayBufferView, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

createImageBitmap(aImage:ArrayBuffer, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

createImageBitmap(aImage:VideoElement, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:CanvasElement, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:Blob, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:ImageData, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:CanvasRenderingContext2D, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:ImageBitmap, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:ArrayBufferView, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:ArrayBuffer, aOffset:Int, aLength:Int, aFormat:ImageBitmapFormat, aLayout:Array<ChannelPixelLayout>):Promise<ImageBitmap>

createImageBitmap(aImage:ImageElement):Promise<ImageBitmap>

createImageBitmap(aImage:ImageElement, aSx:Int, aSy:Int, aSw:Int, aSh:Int):Promise<ImageBitmap>

Throws:

null	DOMError

dump(?str:String):Void

Allows you to write a message to stdout — i.e. in your terminal. This is the same as Firefox's window.dump, but for workers.

fetch(input:Request, ?init:Null<RequestInit>):Promise<Response>

fetch(input:String, ?init:Null<RequestInit>):Promise<Response>

importScripts(urls:Rest<String>):Void

Imports one or more scripts into the worker's scope. You can specify as many as you'd like, separated by commas. For example: importScripts('foo.js', 'bar.js');

Throws:

null	DOMError

setInterval(handler:String, timeout:Int = 0, unused:Rest<Dynamic>):Int

setInterval(handler:Function, timeout:Int = 0, arguments:Rest<Dynamic>):Int

Throws:

null	DOMError

setTimeout(handler:String, timeout:Int = 0, unused:Rest<Dynamic>):Int

setTimeout(handler:Function, timeout:Int = 0, arguments:Rest<Dynamic>):Int

Throws:

null	DOMError