DedicatedWorkerGlobalScope
Baseline
Widely available
*
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
* Some parts of this feature may have varying levels of support.
Note: This feature is only available in Dedicated Web Workers.
The DedicatedWorkerGlobalScope object (the Worker global scope) is accessible through the self keyword. Some additional global functions, namespaces objects, and constructors, not typically associated with the worker global scope, but available on it, are listed in the JavaScript Reference. See also: Functions available to workers.
Instance properties
This interface inherits properties from the WorkerGlobalScope interface, and its parent EventTarget.
DedicatedWorkerGlobalScope.nameRead only-
The name that the
Workerwas (optionally) given when it was created using theWorker()constructor. This is mainly useful for debugging purposes.
Instance methods
This interface inherits methods from the WorkerGlobalScope interface, and its parent EventTarget.
DedicatedWorkerGlobalScope.close()-
Discards any tasks queued in the
WorkerGlobalScope's event loop, effectively closing this particular scope. DedicatedWorkerGlobalScope.postMessage()-
Sends a message — which can consist of
anyJavaScript object — to the parent document that first spawned the worker. DedicatedWorkerGlobalScope.cancelAnimationFrame()-
Cancels an animation frame request previously scheduled through a call to
requestAnimationFrame(). DedicatedWorkerGlobalScope.requestAnimationFrame()-
Perform an animation frame request and call a user-supplied callback function before the next repaint.
Events
Listen to this event using addEventListener() or by assigning an event listener to the oneventname property of this interface.
message-
Fired when the worker receives a message from its parent.
messageerror-
Fired when a worker receives a message that can't be deserialized.
rtctransform-
Fired when an encoded video or audio frame has been queued for processing by a WebRTC Encoded Transform.
Specifications
| Specification |
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| HTML # dedicated-workers-and-the-dedicatedworkerglobalscope-interface |
Browser compatibility
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DedicatedWorkerGlobalScope
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cancelAnimationFrame
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close
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message event
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messageerror event
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name
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postMessage
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requestAnimationFrame
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rtctransform event
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Partial support
- Partial support
- No support
- No support
- See implementation notes.
- Has more compatibility info.