SharedWorkerGlobalScope

SharedWorkerGlobalScope オブジェクト ( SharedWorker グローバルスコープ)は、self キーワードでアクセスできます。 追加のグローバル関数、名前空間オブジェクト、およびコンストラクタ (worker グローバルスコープには通常は関連付けられていませんが、そこで使用可能) は、JavaScript リファレンスにリストされています。worker が利用できる機能の完全なリストを参照してください。

プロパティ

This interface inherits properties from the WorkerGlobalScope interface, and its parent EventTarget, and therefore implements properties from WindowTimers, WindowBase64, and WindowEventHandlers.

SharedWorkerGlobalScope.name 読取専用

The name that the SharedWorker was (optionally) given when it was created using the SharedWorker() constructor. This is mainly useful for debugging purposes.

SharedWorkerGlobalScope.applicationCache 読取専用

This property returns the ApplicationCache object for the worker (see Using the application cache).

Properties inherited from WorkerGlobalScope

WorkerGlobalScope.self

Returns an object reference to the DedicatedWorkerGlobalScope object itself.

WorkerGlobalScope.console 読取専用

Returns the Console associated with the worker.

WorkerGlobalScope.location 読取専用

Returns the WorkerLocation associated with the worker. WorkerLocation is a specific location object, mostly a subset of the Location for browsing scopes, but adapted to workers.

WorkerGlobalScope.navigator 読取専用

Returns the WorkerNavigator associated with the worker. WorkerNavigator is a specific navigator object, mostly a subset of the Navigator for browsing scopes, but adapted to workers.

WorkerGlobalScope.performance 読取専用

Returns the Performance object associated with the worker, which is a regular performance object, but with a subset of its properties and methods available.

Event handlers

This interface inherits event handlers from the WorkerGlobalScope interface, and its parent EventTarget, and therefore implements event handlers from WindowTimers, WindowBase64, and WindowEventHandlers.

SharedWorkerGlobalScope.onconnect

Is an EventHandler representing the code to be called when the connect event is raised — that is, when a MessagePort connection is opened between the associated SharedWorker and the main thread.

メソッド

This interface inherits methods from the WorkerGlobalScope interface, and its parent EventTarget, and therefore implements methods from WindowTimers, WindowBase64, and WindowEventHandlers.

SharedWorkerGlobalScope.close()

Discards any tasks queued in the SharedWorkerGlobalScope's event loop, effectively closing this particular scope.

Inherited from WorkerGlobalScope

WorkerGlobalScope.close()

Discards any tasks queued in the WorkerGlobalScope's event loop, effectively closing this particular scope.

WorkerGlobalScope.dump()

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.

WorkerGlobalScope.importScripts()

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');

Implemented from other places

WindowBase64.atob()

Decodes a string of data which has been encoded using base-64 encoding.

WindowBase64.btoa()

Creates a base-64 encoded ASCII string from a string of binary data.

WindowTimers.clearInterval()

Cancels the repeated execution set using WindowTimers.setInterval().

WindowTimers.clearTimeout()

Cancels the repeated execution set using WindowTimers.setTimeout().

WindowTimers.setInterval()

Schedules the execution of a function every X milliseconds.

WindowTimers.setTimeout()

Sets a delay for executing a function.

仕様

ブラウザの互換性

あわせて参照

• SharedWorker
• WorkerGlobalScope
• Using Web workers
• Functions available to workers