Function createFiberRoot

lib/assets/react-source/development/react.js:27845–27855

(containerInfo, tag, hydrate, hydrationCallbacks)

	}

	function createFiberRoot(containerInfo, tag, hydrate, hydrationCallbacks) {
	  var root = new FiberRootNode(containerInfo, tag, hydrate);
	  // stateNode is any.


	  var uninitializedFiber = createHostRootFiber(tag);
	  root.current = uninitializedFiber;
	  uninitializedFiber.stateNode = root;
	  initializeUpdateQueue(uninitializedFiber);
	  return root;
	}
	function isRootSuspendedAtTime(root, expirationTime) {
	  var firstSuspendedTime = root.firstSuspendedTime;
	  var lastSuspendedTime = root.lastSuspendedTime;