Function useRef

packages/react-server/src/ReactFizzHooks.js:473–488

(initialValue: T)

}

function useRef<T>(initialValue: T): {current: T} {
  currentlyRenderingComponent = resolveCurrentlyRenderingComponent();
  workInProgressHook = createWorkInProgressHook();
  const previousRef = workInProgressHook.memoizedState;
  if (previousRef === null) {
    const ref = {current: initialValue};
    if (__DEV__) {
      Object.seal(ref);
    }
    // $FlowFixMe[incompatible-use] found when upgrading Flow
    workInProgressHook.memoizedState = ref;
    return ref;
  } else {
    return previousRef;
  }
}

function dispatchAction<A>(
  componentIdentity: Object,