notification-app-v2.js

const notifications = [
  {
    date: "Nov 10, 2015 8:00:00",
    message: "Tagged in a photo",
  },
  {
    date: "Nov 10, 2015 9:00:00",
    message: "Mentioned in a post",
  },  
];

// "Smart" notification component
const NotificationsContainer =  React.createClass({
  componentWillMount() {
    this.setState({
      notifications
    });
  },

  render() {
    const Component = this.props.component;
    return (
      <Component
        notifications={this.state.notifications}
      />
    );
  },

});

// "Dumb" notification component
const Notifications = React.createClass({
  render() {
    return (
      <div>
        {this.props.notifications.map(notification => {
          return (
            <div>
              <span>{notification.message}</span>
              <span>{notification.date}</span>
            </div>
          );
        })}
      </div>
    );
  },
});

// useage
const App = React.createClass({
  render() {
    return (
      <div>
        <NotificationsContainer
          component={Notifications}
        />
      </div>
    );
  },
});