This course helps you learn web development with React using functional components in detail and introduces you to React internals.

Packt MBE - Designing React Hooks the right way.png

Web development has changed significantly in recent years. A web developer should not only know the basics of HTML, CSS, and JavaScript but also be proficient in frameworks such as Angular, React, and Vue. These frameworks make web development easier, enabling developers to focus on the application logic.

This course is designed for newcomers to React and experienced React developers alike. You’ll start by learning the most fundamental concept in React—components. Specifically, you’ll learn about function components. You’ll then learn how to manage application state and side effects. You’ll then learn about the useMemo hook to boost an application’s performance. You’ll learn about the useContext hook which enables us to perform area updates in our application. Finally, you’ll learn how to create custom hooks in React.

After completing this course, you can develop frontend applications with React. You’ll be able to develop complex web applications faster because React makes the process much easier.

Learn React Hooks for Frontend Development

It requires modification of the state in each component.

It leads to a tight coupling between components.

It becomes expensive due to the need to modify many components.

What is the main drawback of the props approach for sharing state between distant components?

What is the main drawback of the props approach for sharing state between distant components?

It triggers a re-render of all components.

It performs a search through its children to update consumers.

What does a context provider do when its value gets updated?

What does a context provider do when its value gets updated?

It sees the value from the innermost provider.


It sees the value from the outermost provider.

It sees the combined value from all providers.

What does a context consumer see when there are nested providers with different values?

What does a context consumer see when there are nested providers with different values?

By using a global variable to store the dispatch function

By directly modifying the state of one component from another


By relying on the useContext hook for state sharing


By dispatching updates to multiple components simultaneously


How does the combined dispatch approach work in sharing state between distant components?

How does the combined dispatch approach work in sharing state between distant components?

How can multiple context values of different purposes be provided to consumers?

How can multiple context values of different purposes be provided to consumers?

Test your understanding of the useContext hook in React.

Prologue

Introducing the Function Component

Crafting States in Functions

Hooking into React

Use State to Jumpstart Components

Use Effect to Handle Side Effects

Use Memo to Boost Performance

Use Context to Cover an Area

Use Ref to Hide Stuff

Use Custom Hooks to Reuse Logic

Conclusion

Appendix: Exploring JavaScript and React

Quiz: Use Context to Cover an Area