Function useRef

packages/react-reconciler/src/ReactFiberHooks.js:4091–4095

(initialValue: T)

      }
    },
    useRef<T>(initialValue: T): {current: T} {
      currentHookNameInDev = 'useRef';
      mountHookTypesDev();
      return mountRef(initialValue);
    },
    useState<S>(
      initialState: (() => S) | S,
    ): [S, Dispatch<BasicStateAction<S>>] {