useTimeout()

Very similar to the useInterval hook, this React hook implements the native setTimeout function keeping the same interface.

You can enable the timeout by setting delay as a number or disabling it using null.

When the time finish, the callback function called.

The Hook

1import { useEffect, useRef } from 'react'
2
3function useTimeout(callback: () => void, delay: number | null) {
4  const savedCallback = useRef(callback)
5
6  // Remember the latest callback if it changes.
7  useEffect(() => {
8    savedCallback.current = callback
9  }, [callback])
10
11  // Set up the timeout.
12  useEffect(() => {
13    // Don't schedule if no delay is specified.
14    if (delay === null) {
15      return
16    }
17
18    const id = setTimeout(() => savedCallback.current(), delay)
19
20    return () => clearTimeout(id)
21  }, [delay])
22}
23
24export default useTimeout

Usage

1import React, { useState } from 'react'
2
3import useTimeout from './useTimeout'
4
5export default function Component() {
6  const [visible, setVisible] = useState(true)
7
8  const hide = () => setVisible(false)
9
10  useTimeout(hide, 5000)
11
12  return (
13    <div>
14      <p>
15        {visible
16          ? "I'm visible for 5000ms"
17          : 'You can no longer see this content'}
18      </p>
19    </div>
20  )
21}

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