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The navigator
read-only property of the WorkerGlobalScope
interface returns the WorkerNavigator
associated with the worker. It is a specific navigator object, mostly a subset of the Navigator
for browsing scopes, but adapted to workers.
Syntax
var navigatorObj = self.navigator;
Value
A WorkerNavigator
object.
Example
If you called
console.log(navigator);
inside a worker (which would basically be the equivalent of self.console.log(self.navigator);
, as these are being called on the worker scope, which can be referenced with WorkerGlobalScope.self
), you will get a WorkerNavigator
object written to the console — something like the following:
Object {onLine: true, userAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) Ap…ML, like Gecko) Chrome/40.0.2214.93 Safari/537.36", product: "Gecko", platform: "MacIntel", appVersion: "5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKi…ML, like Gecko) Chrome/40.0.2214.93 Safari/537.36"…} appCodeName: "Mozilla" appName: "Netscape" appVersion: "5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.93 Safari/537.36" hardwareConcurrency: 4 onLine: true platform: "MacIntel" product: "Gecko" userAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.93 Safari/537.36" __proto__: Object
You could use this navigator object to return more information about the runtime envinronment, as you might do with a normal Navigator
object.
Note: Firefox has a bug with using console.log
inside shared/service workers (see bug 1058644), which may return strange results, but this should be fixed soon.
Specifications
Specification | Status | Comment |
---|---|---|
WHATWG HTML Living Standard The definition of 'navigator' in that specification. |
Living Standard | No change from Web Workers. |
Web Workers The definition of 'navigator' in that specification. |
Candidate Recommendation | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 4 | 3.5 (1.9.1) | (Yes) | 11.5 | 4 |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | ? | 40 | 1.0 (1.9.1) | 1.0.1 | (Yes) | (Yes) | 5.1 |