WorkerNavigator

The WorkerNavigator interface represents a subset of the Navigator interface allowed to be accessed from a Worker. Such an object is initialized for each worker and is available via the WorkerGlobalScope.navigator property obtained by calling window.self.navigator.

Properties

The WorkerNavigator interface implements properties from the NavigatorID, NavigatorLanguage, NavigatorOnLine, NavigatorDataStore, and NavigatorConcurrentHardware interfaces.

WorkerNavigator.permissions Read only

Returns a Permissions object that can be used to query and update permission status of APIs covered by the Permissions API.

Navigator.storage Read only

Returns a StorageManager interface for managing persistance permissions and estimating available storage.

Inherited properties

NavigatorID.appCodeName Read only

Always returns 'Mozilla', in any browser. This property is kept only for compatibility purposes.

NavigatorID.appName Read only

Returns the official name of the browser. Do not rely on this property to return the correct value.

NavigatorID.appVersion Read only

Returns the version of the browser as a string. Do not rely on this property to return the correct value.

NavigatorConcurrentHardware.hardwareConcurrency Read only

Returns the number of logical processor cores available.

NavigatorLanguage.language Read only

Returns a DOMString representing the language version of the browser. The null value is returned when this is unknown.

NavigatorLanguage.languages Read only

Returns an array of DOMStrings representing the languages known to the user, in order of preference.

NavigatorOnLine.onLine Read only

Returns a Boolean indicating whether the browser is online.

NavigatorID.platform Read only

Returns a string representing the platform of the browser. Do not rely on this property to return the correct value.

NavigatorID.product Read only

Always returns 'Gecko', on any browser. This property is kept only for compatibility purposes.

NavigatorID.userAgent Read only

Returns the user agent string for the current browser.

Methods

The WorkerNavigator interface implements methods from the NavigatorID, NavigatorLanguage and NavigatorOnLine interfaces.

WorkerNavigator.sendBeacon()

Used to asynchronously transfer a small amount of data using HTTP from a Worker to a web server.

Specifications

Specification	Status	Comment
WHATWG HTML Living Standard The definition of 'WorkerNavigator' in that specification.	Living Standard	No change from Web Workers.
Web Workers The definition of 'WorkerNavigator' in that specification.	Editor's Draft	Initial definition

Browser compatibility

See also

• Other Worker-related interfaces: Worker, WorkerLocation, and WorkerGlobalScope.
• Using web workers.