use-debounce.js

function useDebounced(value, timeout) {
  let [debouncedValue, setDebouncedValue] = useState(value)
  
  useEffect(() => {
    let timeoutId = setTimeout(() => {
      setDebouncedValue(value)
    }, timeout)

    return () => {
      clearTimeout(timeoutId)
    }
  }, [value, timeout])

  return debouncedValue
}

On Line 7, I believe there is a typo. the delay should be timeout. Loved the video btw!

Nice catch @weironiottan! That's all fixed!