Function batchedUpdates

docs/external/js/react-dom.development.js:766–781

(fn, bookkeeping)

  }

  function batchedUpdates(fn, bookkeeping) {
    if (isInsideEventHandler) {
      // If we are currently inside another batch, we need to wait until it
      // fully completes before restoring state.
      return fn(bookkeeping);
    }

    isInsideEventHandler = true;

    try {
      return batchedUpdatesImpl(fn, bookkeeping);
    } finally {
      isInsideEventHandler = false;
      finishEventHandler();
    }
  }
  function batchedEventUpdates(fn, a, b) {
    if (isBatchingEventUpdates) {
      // If we are currently inside another batch, we need to wait until it