Book Image

React and React Native - Third Edition

By : Adam Boduch, Roy Derks
Book Image

React and React Native - Third Edition

By: Adam Boduch, Roy Derks

Overview of this book

React and React Native, Facebook’s innovative User Interface (UI) libraries, are designed to help you build robust cross-platform web and mobile applications. This updated third edition is improved and updated to cover the latest version of React. The book particularly focuses on the latest developments in the React ecosystem, such as modern Hook implementations, code splitting using lazy components and Suspense, user interface framework components using Material-UI, and Apollo. In terms of React Native, the book has been updated to version 0.62 and demonstrates how to apply native UI components for your existing mobile apps using NativeBase. You will begin by learning about the essential building blocks of React components. Next, you’ll progress to working with higher-level functionalities in application development, before putting this knowledge to use by developing user interface components for the web and for native platforms. In the concluding chapters, you’ll learn how to bring your application together with a robust data architecture. By the end of this book, you’ll be able to build React applications for the web and React Native applications for multiple mobile platforms.
Table of Contents (33 chapters)
Section 1: React
Section 2: React Native
Section 3: React Architecture

Using the lazy API

There are two pieces involved with using the new lazy() API in React. First, there's bundling components into their own separate files so that they can be downloaded by the browser separately from other parts of the application. Secondly, once you have created the bundles, you can build React components that are lazy—they don't download anything until the first time they're rendered.

Dynamic imports and bundles

The code examples in this book are using the create-react-app tooling for creating bundles. The nice thing about this approach is that you don't have to maintain any sort of bundle configuration. Instead, bundles are created for you automatically, based on how you import your modules. If you're using the import statement everywhere, your app will be downloaded all at once in one bundle. When your app gets bigger, there are likely going to be features that some users never use or don't use as frequently as others. You can use...