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 event handler context and parameters

In this section, you'll learn about React components that bind their event handler contexts and how you can pass data into event handlers. Having the right context is important for React event handler functions, because they usually need access to component properties or state. Being able to parameterize event handlers is also important, because they don't pull data out of DOM elements.

Getting component data

In this section, you'll learn about scenarios where the handler needs access to component properties, along with argument values. You'll render a custom list component that has a click event handler for each item in the list. The component is passed an array of values as follows:

import React from "react";
import { render } from "react-dom";
import MyList from "./MyList";

const items = [
{ id: 0, name: "First" },
{ id: 1, name: "Second" },
{ id: 2, name: "Third&quot...