Function updateOptimistic

docs/index.js:25099–25102

(passthrough, reducer)

      return [passthrough, hook];
    }
    function updateOptimistic(passthrough, reducer) {
      var hook = updateWorkInProgressHook();
      return updateOptimisticImpl(hook, currentHook, passthrough, reducer);
    }
    function updateOptimisticImpl(hook, current, passthrough, reducer) {
      hook.baseState = passthrough;
      return updateReducerImpl(