React hook to use previous value in Typescript

usePrevious.ts

import { useRef, useEffect } from 'react'

/**
 * Saves previous value, if you need to compare it to a current value
 * @param value - anything you need to store as a previous value
 */
export const usePrevious = <T>(value: T) => {
  const ref = useRef<T>()

  // Store current value in ref
  useEffect(() => {
    ref.current = value
  }, [value])

  // Return previous value (happens before update in useEffect above)
  return ref.current as T
}