usePreviousPersistent.ts

export function usePreviousPersistent<T extends unknown>(value: T) {
  const ref = useRef<{ value: T; prev: T | null }>({
    value,
    prev: null,
  });

  const currentValue = ref.current.value;

  if (!isEqual(value, currentValue)) {
    ref.current = {
      value,
      prev: currentValue,
    };
  }

  return ref.current.prev;
}