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The React Workshop

You're reading from   The React Workshop Get started with building web applications using practical tips and examples from React use cases

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Product type Paperback
Published in Aug 2020
Publisher Packt
ISBN-13 9781838645564
Length 806 pages
Edition 1st Edition
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Authors (6):
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Florian Sloot Florian Sloot
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Florian Sloot
Ryan Yu Ryan Yu
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Ryan Yu
Brandon Richey Brandon Richey
Author Profile Icon Brandon Richey
Brandon Richey
Endre Vegh Endre Vegh
Author Profile Icon Endre Vegh
Endre Vegh
 Theofanis Despoudis Theofanis Despoudis
Author Profile Icon Theofanis Despoudis
Theofanis Despoudis
Anton Punith Anton Punith
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Anton Punith
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Toc

Table of Contents (20) Chapters Close

Preface
1. Getting Started with React 2. Dealing with React Events FREE CHAPTER 3. Conditional Rendering and for Loops 4. React Lifecycle Methods 5. Class and Function Components 6. State and Props 7. Communication between Components 8. Introduction to Formik 9. Introduction to React Router 10. Advanced Routing Techniques: Special Cases 11. Hooks – Reusability, Readability, and a Different Mental Model 12. State Management with Hooks 13. Composing Hooks to Solve Complex Problems 14. Fetching Data by Making API Requests 15. Promise API and async/await 16. Fetching Data on Initial Render and Refactoring with Hooks 17. Refs in React 18. Practical Use Cases of Refs Appendix

Context API and Hooks

Having to pass down props through multiple different levels of components can cause the following issues:

  • While creating maintenance in your app, if you make a new prop, you need to pass it down the whole line. You might need to do the same if some component is changed or removed.
  • It can create unnecessary noise if we do not know what props are intended for while creating a component and what is just a traveler.
  • It creates a dependency on the component that is passing down the props. The component that just passes down the prop knows too much by simply playing the messenger.

To handle these issues, React typically allows access to something called Context, which we've briefly looked into in the previous chapters. React also provides a useful hook for us to be able to access the context of the app called the useContext hook.

useContext Hook

useContext is a React hook that takes a React context object as an argument and gives...

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