Lesson 08 Lifting State Up

Step-by-Step Tutorial:

1. Understanding the Current Setup:

   • The video discusses the creation of a fetching action and an original website.
   • It mentions conditional fetching, pure components, and exchanging values between sibling components.

2. Options for Exchanging Values:

   • The video highlights using event emitters, context API, Redux, or other state management libraries for value exchange.
   • For this tutorial, the concept of lifting state up is focused on.

3. Implementing Lifting State Up:

   • Begin by creating a state object inside the higher component (in this case, the App component).
   • Pass down the state as a prop to the child component (Section).
   • Update the state based on events (e.g., clicks) in the child component.

4. Updating State Dynamically:

   • Use a function to update the state based on user interactions.
   • Ensure that the state is updated correctly by passing the section name as an argument.

5. Handling State Changes:

   • Use the setSectionState function to update the state based on the selected item.
   • Ensure that the state change reflects the toggled section correctly.

6. Implementing Fetching Actions:

   • Define the fetch action based on the toggled section (e.g., 'onTv' or 'onTheater') in the MovieList component.
   • Create request objects for different sections to fetch specific data (e.g., TV shows or movies).

7. Using useEffect for Fetching Data:

   • Utilize useEffect to trigger the fetching action whenever the toggled section changes.
   • Ensure that the fetching action is performed on component mount and on subsequent section changes.

8. Testing the Implementation:

   • Verify that the fetching action works correctly by checking if the data is fetched based on the toggled section.
   • Confirm that the component re-renders when the props change due to section toggling.

9. Enhancements and Next Steps:

   • Include additional features like using the Blur effect and improving the UI in future iterations.
   • Consider implementing pure components and exploring more advanced concepts in the upcoming videos.

10. Conclusion:

    • The tutorial covers lifting state up, conditional fetching, and updating state dynamically in a React application.
    • By following the steps outlined in the video, you can enhance the interactivity and functionality of your components effectively.

This tutorial provides a structured approach to implementing the concepts discussed in the video and guides you through the process of lifting state up and handling fetching actions in a React application.