useInterval

Reactive counter that increases on every interval.

Usage

import { useInterval } from '@vueuse/core'

// count will increase every 200ms
const counter = useInterval(200)

With Controls

import { useInterval } from '@vueuse/core'

const { counter, reset, pause, resume, isActive } = useInterval(200, {
  controls: true,
})

// Reset counter to 0
reset()

// Pause/resume the interval
pause()
resume()

Options

Option	Type	Default	Description
`controls`	`boolean`	`false`	Expose `pause`, `resume`, `reset`, and `isActive` controls
`immediate`	`boolean`	`true`	Start the interval immediately
`callback`	`(count: number) => void`	—	Called on every interval with the current count

Reactive Interval

The interval can be reactive:

import { useInterval } from '@vueuse/core'

const intervalMs = ref(1000)
const counter = useInterval(intervalMs)

// Change the interval dynamically
intervalMs.value = 500

Callback on Every Interval

import { useInterval } from '@vueuse/core'

useInterval(1000, {
  callback: (count) => {
    console.log(`Tick ${count}`)
  },
})