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

Passing property values

Properties are like state data that gets passed into components. However, properties are different from state in that they're only set once, which is when the component is rendered. In this section, you'll learn about default property values. Then, we'll look at setting property values. After this section, you should be able to grasp the differences between component state and properties.

Default property values

Default property values work a little differently than default state values. They're set as a class attribute called defaultProps. Let's take a look at a component that declares default property values:

import React, { Component } from 'react';

export default class MyButton extends Component {
static defaultProps = {
disabled: false,
text: 'My Button'

render() {
const { disabled, text } = this.props;

return <button disabled={disabled}>{text}</button>;

Why not just set the default...