import { useEffect, useRef } from 'react'; | |
/** | |
* @description 返回上一次的值 | |
*/ | |
const usePrevious = <T = unknown>(value: T) => { | |
const ref = useRef<T>(); | |
useEffect(() => { | |
ref.current = value; | |
}, [value]); | |
return ref.current; | |
}; | |
export default usePrevious; | |