In this chapter, we first learned about actions, reducers, and Reducer Hooks. We also learned when we should use Reducer Hooks instead of State Hooks. Then, we replaced our existing global State Hooks for the user and posts states, with two Reducer Hooks. Next, we merged the two Reducer Hooks into a single app Reducer Hook. Finally, we learned about Effect Hooks, and how they can be used instead of componentDidMount and componentDidUpdate.
In the next chapter, we are going to learn about React context, and how to use it with Hooks. Then, we are going to add Context Hooks to our app, in order to avoid having to pass down props over multiple layers of components.
