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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。一部の追加のグローバル関数、名前空間オブジェクト、コンストラクターは、通常はワーカーのグローバルスコープに関連付けられていませんが、利用することができ、 JavaScript リファレンスに列挙されています。ワーカーで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
このインターフェイスは WorkerGlobalScope、またその親の EventTarget インターフェイスからプロパティを継承しており、したがって WindowTimers, WindowBase64, WindowEventHandlers のプロパティを実装しています。
SharedWorkerGlobalScope.name読取専用- The name that the
SharedWorkerwas (optionally) given when it was created using theSharedWorker()constructor. This is mainly useful for debugging purposes. SharedWorkerGlobalScope.applicationCache読取専用- This property returns the
ApplicationCacheobject for the worker (see Using the application cache).
WorkerGlobalScope から継承しているプロパティ
WorkerGlobalScope.self- Returns an object reference to the
DedicatedWorkerGlobalScopeobject itself. WorkerGlobalScope.console読取専用- Returns the
Consoleassociated with the worker. WorkerGlobalScope.location読取専用- Returns the
WorkerLocationassociated with the worker.WorkerLocationis a specific location object, mostly a subset of theLocationfor browsing scopes, but adapted to workers. WorkerGlobalScope.navigator読取専用- Returns the
WorkerNavigatorassociated with the worker.WorkerNavigatoris a specific navigator object, mostly a subset of theNavigatorfor browsing scopes, but adapted to workers. WorkerGlobalScope.performance読取専用- Returns the
Performanceobject associated with the worker, which is a regular performance object, but with a subset of its properties and methods available.
イベントハンドラー
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
EventHandlerrepresenting the code to be called when theconnectevent is raised — that is, when aMessagePortconnection is opened between the associatedSharedWorkerand 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.
WorkerGlobalScope から継承したもの
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');
他の場所から実装したもの
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.
イベント
Listen to this event using addEventListener() or by assigning an event listener to the oneventname property of this interface.
connect- Fired on shared workers when a new client connects.
Also available via theonconnectproperty.
仕様書
| 仕様書 | 状態 | 備考 |
|---|---|---|
| HTML Living Standard SharedWorkerGlobalScope の定義 |
現行の標準 |