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

Type and value validators

In this section, you'll learn about the more advanced validator functionality available in the React prop-types package. First, you'll learn about the element and node validators that check for values that can be rendered inside HTML markup. Then, you'll see how to check for specific types, beyond the primitive type checking that you just learned about. Finally, you'll implement validation that looks for specific values.

Things that can be rendered

Sometimes, you just want to make sure that a property value is something that can be rendered by JSX markup. For example, if a property value is an array of plain objects, this can't be rendered by putting it in {}. You have to map the array items to JSX elements.

This sort of checking is especially useful if your component passes property values to other elements as children. Let's look at an example of what this looks like:

import React from "react";
import PropTypes from &quot...