Book Image

React 16 Essentials - Second Edition

By : Christopher Pitt, Artemij Fedosejev, Adam Boduch
Book Image

React 16 Essentials - Second Edition

By: Christopher Pitt, Artemij Fedosejev, Adam Boduch

Overview of this book

React 16 Essentials, Second Edition, fully updated for React 16, takes you on a fast-paced journey through building your own maintainable React 16 applications. React experts Artemij Fedosejev and Adam Boduch give you all the essentials you need to know and start working with React 16, in this new edition of the best-selling React.js Essentials title. You'll find the latest React 16 code updates, assessment of React Fiber, new coverage of Redux, and how to work as a modern React developer. The authors offer you their current assessment of React Fiber, and you'll soon be exploring React 16 hands on, creating your own single and multiple user interface elements with React 16. You'll then see how to create stateless and stateful components and make them reactive. You'll also learn to interact between your components and lifecycle methods, and gauge how to effectively integrate your user interface components with other JavaScript libraries. Delve deep into the core elements of the Redux architecture and learn how to manage your application and data persistence. Then go the extra mile with the Jest test framework, and run multiple tests on your applications and find solutions to scale without complexity. Today React is used by Facebook, Instagram, Khan Academy, and Imperial College London, to name a few. Many new users recognize the benefits of React and adopt it in their own projects, forming a fast-growing community. The speed at which React has evolved promises a bright future for anyone who invests in learning it today. Let Artemij and Adam bring you a brand new look at React 16 and React Fiber, and move your web development into the future.
Table of Contents (20 chapters)
React 16 Essentials Second Edition
About the Authors
About the Reviewers
Customer Feedback
Free Chapter
What's New in React 16


The goal of this chapter was to introduce you to the substantial changes in React 16. Remarkably, there are almost no compatibility issues with the prior React release. This is because most of the changes were internal and didn't require changes in the API. A couple of new features were added as well.

The headline of React 16 is its new reconciliation internals. Rather than trying to reconcile everything any time a component changes state, the reconciliation work is now broken into smaller units. These units can be prioritized, scheduled, paused, and resumed. In the near future, React will take full advantage of this new architecture and start rendering units of work asynchronously.

You also learned how to use the new error boundary functionality in React components. Using error boundaries allows you to recover from component errors without taking down the entire application. Then, you learned that React components can now return collections of components. This is just like when you render a collection of components. Now you can do this directly from components. Finally, you learned how to render components to nonstandard locations using portals.

In the next chapter, you'll learn how to build reactive components.