Redux Learning Objectives: Part 1

You’ve been using React’s Context API to manage global state to share the same information across multiple components. Redux, like Context, gives you a way to store and manage global state in your React applications. Even though Context has become a popular option since its introduction, Redux remains a popular option for projects with sophisticated global state requirements.

After reading and practicing how to use Redux, you should be able to:

• Describe the Redux data cycle
• Describe the role of the store in the Redux architecture
• Explain what a reducer is
• Use the createStore method to create an instance of a Redux store
• Use the store.dispatch method to dispatch an action to trigger a state update
• Use the store.subscribe method to listen for state updates
• Use the store.getState method to get the current state
• Use a switch statement within a reducer function to handle multiple action types
• Describe why it’s important for a reducer to avoid mutating the current state when creating the next state
• Write an action creator function to facilitate in the creation of action objects
• Use constants to define action types to prevent simple typos in action type string literals