Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying React Key Concepts
  • Table Of Contents Toc
React Key Concepts

React Key Concepts - Second Edition

By : Maximilian Schwarzmüller
4.8 (6)
close
close
React Key Concepts

React Key Concepts

4.8 (6)
By: Maximilian Schwarzmüller

Overview of this book

Maximilian Schwarzmüller is a bestselling instructor who has helped more than three million students worldwide learn how to code. His bestselling React video course, “React – The Complete Guide”, has over nine hundred thousand students on Udemy. Max has written this quick-start reference that distills the core concepts of React. Simple explanations, relevant examples, and step-by-step derivations make this guide the ideal resource for busy developers. In this second edition, Max guides you through changes brought by React 19, including the new use() hook, form actions, and how to think about React on the server. This book will support you through your next React projects in giving you a behind-the-scenes understanding of the framework – whether you've just finished Max's video course and are looking for a handy reference, or you’re using a variety of other learning materials and need a single study guide to bring everything together. You’ll find full solutions to all end-of-chapter quizzes and exercises in the book’s GitHub repository.
Table of Contents (21 chapters)
close
close
19
Other Books You May Enjoy

The Problem with Server-side Data Fetching

If you have an SSR-enabled React app, either by manually enabling it, for example, in a Vite-based project, or by using a framework like Next.js, your React component functions get executed on the server. Thus, any data required by those components should be fetched on the server.

But as explained in the previous chapter, in the Server-side Data Fetching Is Not Trivial section, sending HTTP requests with the help of useEffect() or trying to update the UI via useState() does not work when using SSR. On the server, React only calls the component functions once—it does not re-execute them when the state changes. It also doesn’t call your effect functions.

This is a serious limitation since many React apps need to fetch data from some backend or a database. Not being able to fetch and render that data on the server means that website visitors will again receive incomplete HTML documents (and wait for the data to be fetched...

CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
React Key Concepts
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist download Download options font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon