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agent-skills/skills/vueuse-functions/references/useWebWorker.md
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-16 16:27:42 -06:00

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Browser useWebWorkerFn

useWebWorker

Simple Web Workers registration and communication.

Usage

import { useWebWorker } from '@vueuse/core'

const { data, post, terminate, worker } = useWebWorker('/path/to/worker.js')
State Type Description
data Ref<any> Reference to the latest data received via the worker, can be watched to respond to incoming messages
worker ShallowRef<Worker | undefined> Reference to the instance of the WebWorker
Method Signature Description
post (message: any, transfer: Transferable[]): void
(message: any, options?: StructuredSerializeOptions | undefined): void
Sends data to the worker thread.
terminate () => void Stops and terminates the worker.

Type Declarations

type PostMessage = (typeof Worker.prototype)["postMessage"]
export interface UseWebWorkerReturn<Data = any> {
  data: Ref<Data>
  post: PostMessage
  terminate: () => void
  worker: ShallowRef<Worker | undefined>
}
type WorkerFn = (...args: unknown[]) => Worker
/**
 * Simple Web Workers registration and communication.
 *
 * @see https://vueuse.org/useWebWorker
 * @param url
 * @param workerOptions
 * @param options
 */
export declare function useWebWorker<T = any>(
  url: string,
  workerOptions?: WorkerOptions,
  options?: ConfigurableWindow,
): UseWebWorkerReturn<T>
/**
 * Simple Web Workers registration and communication.
 *
 * @see https://vueuse.org/useWebWorker
 */
export declare function useWebWorker<T = any>(
  worker: Worker | WorkerFn,
): UseWebWorkerReturn<T>