1---
2category: Utilities
3---
4 
5# useTimeoutPoll
6 
7Use timeout to poll something. It will trigger callback after last task is done.
8 
9## Usage
10 
11```ts
12import { useTimeoutPoll } from '@vueuse/core'
13 
14const count = ref(0)
15 
16async function fetchData() {
17  await new Promise(resolve => setTimeout(resolve, 1000))
18  count.value++
19}
20 
21// Only trigger after last fetch is done
22const { isActive, pause, resume } = useTimeoutPoll(fetchData, 1000)
23```
24 
25## Type Declarations
26 
27```ts
28export interface UseTimeoutPollOptions {
29  /**
30   * Start the timer immediately
31   *
32   * @default true
33   */
34  immediate?: boolean
35  /**
36   * Execute the callback immediately after calling `resume`
37   *
38   * @default false
39   */
40  immediateCallback?: boolean
41}
42export declare function useTimeoutPoll(
43  fn: () => Awaitable<void>,
44  interval: MaybeRefOrGetter<number>,
45  options?: UseTimeoutFnOptions,
46): Pausable
47```
48