// @ts-nocheck import { useRef, useEffect } from 'react'; // Hook export function usePrevious(value) { // The ref object is a generic container whose current property is mutable ... // ... and can hold any value, similar to an instance property on a class const ref = useRef(); // Store current value in ref useEffect(() => { ref.current = value; }, [value]); // Only re-run if value changes // Return previous value (happens before update in useEffect above) return ref.current; }