**2020 UPDATE**: A brand new version of this app, built with React hooks and the Context API, is available for free on egghead.io
Here's the link to the playlist: https://egghead.io/playlists/build-a-...
When your components don't need to hook into React's lifecycle events (componentDidMount, componentWillMount, shouldComponentUpdate, etc...), it is recommended to declare them using the stateless functional component syntax.
In this video, we create the `Credit` footer component as a stateless component.