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
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
Free Chapter
1
What's New in React 16
Index

Connecting components to an application state


So far, we have the reducer functions that handle creating a new application state, and the action creator functions that trigger our reducer functions. We still need to connect our React components to the Redux store. In this section, you'll learn how to use the connect() function to create a new version of your component that's connected to the Redux store.

Mapping state and action creators to props

The idea with Redux and React integration is that you tell Redux to wrap your component with a stateful component that has its state set when the Redux store changes. All we have to do is write a function that tells Redux how we want state values passed to our component as props. Additionally, we have to tell the component about any actions that it might want to dispatch.

Here is the general pattern that we'll follow when connecting components:

connect(
  mapStateToProps,
  mapDispatchToProps
)(Component);

Here's a breakdown of how this works:

  • The connect...