Lesson 04 React state and hooks

Step-by-Step Tutorial: React State and Hooks

1. Fixing Unique Key Prop Warning in Navbar List

   • Identify the component causing the warning about needing a unique key prop.
   • Add a unique key prop to the component using the key attribute with a unique identifier like item.name.

2. Making Button Display Inline Flex

   • Update the button styling to display as inline flex and justify content and items to the center.

3. Understanding State and Re-rendering

   • Explain the concept of state in React, which triggers a re-render every time the state changes.
   • Introduce the useState hook to manage state variables in React components.

4. Implementing State with useState Hook

   • Use the useState hook to create a state variable and a function to update the state.
   • Update the state variable using the setSearchInputValue function when the input value changes.

5. Rendering State Value in UI

   • Display the state value in the UI by updating the component to show the searchInputValue.

6. Handling User Input with useRef Hook

   • Introduce the useRef hook to get direct access to DOM elements.
   • Use useRef to capture user input directly from the real DOM.

7. Improving User Input Handling

   • Implement an event listener for the Enter key press to trigger a search action.
   • Display the search input value when the Enter key is pressed.

8. Passing Props Efficiently

   • Use the spread operator (...props) to efficiently pass props to custom components.
   • Spread the props in the custom component to avoid repetitive code.

9. Implementing Search Functionality

   • Create a search function to handle user input and trigger search actions.
   • Update the component to call the search function when the Enter key is pressed.

10. Enhancing Code Reusability

    • Refactor the code to avoid repetitive event handling and improve code reusability.
    • Implement a function to handle search actions more efficiently.

11. Preparing for Navigation and Routing

    • Prepare the code for future enhancements like navigation and routing.
    • Plan to divide the application into pages and integrate routing for better user experience.

12. Conclusion

    • Summarize the concepts covered in the tutorial, including state management, hooks usage, and event handling.
    • Hint at upcoming topics to be covered in the next video tutorial.

By following these steps, you can understand and implement React state management with hooks effectively in your web application.