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

What are component properties?

Properties are used to pass data into your React components. Instead of calling a method with a new state as the argument, properties are passed only when the component is rendered. That is, you pass property values to JSX elements.

In the context of JSX, properties are called attributes, probably because that's what they're called in XML parlance. In this book, properties and attributes are synonymous with one another.

Properties are different than state because they don't change after the initial render of the component. If a property value has changed, and you want to re-render the component, then we have to re-render the JSX that was used to render it in the first place. The React internals take care of making sure this is done efficiently. Here's a diagram of rendering and re-rendering a component using properties:

This looks a lot different than a stateful component. The real difference is that with properties, it's often...