Book Image

React and React Native - Fourth Edition

By : Adam Boduch, Roy Derks, Mikhail Sakhniuk
Book Image

React and React Native - Fourth Edition

By: Adam Boduch, Roy Derks, Mikhail Sakhniuk

Overview of this book

Over the years, React and React Native has proven itself among JavaScript developers as a popular choice for a complete and practical guide to the React ecosystem. This fourth edition comes with the latest features, enhancements, and fixes to align with React 18, while also being compatible with React Native. It includes new chapters covering critical features and concepts in modern cross-platform app development with React. From the basics of React to popular components such as Hooks, GraphQL, and NativeBase, this definitive guide will help you become a professional React developer in a step-by-step manner. You'll begin by learning about the essential building blocks of React components. As you advance through the chapters, you'll work with higher-level functionalities in application development and then put your knowledge to work by developing user interface components for the web and native platforms. In the concluding chapters, you'll learn how to bring your application together with 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 (36 chapters)
1
Part 1 – React
15
Part 2 – React Native
31
Part 3 – React Architecture

Frontend reconciliation

The only thing that was missing from the last example was the client's JavaScript code. The user wants to use the application, and the server needs to deliver the client's code bundle. How would this work? Routing has to work in the browser and on the server, without modifying the routes. In other words, the server handles routing in the initial request and then the browser takes over as the user starts clicking on things and moving around in the application.

Let's create the index.js module for this example:

import React from "react";
import { hydrate } from "react-dom";
import App from "./App";
 
hydrate(<App />, document.getElementById("root"));

This looks like most other index.js files that you've seen so far in this book. You render the <App> component in the root element in the HTML document. In this case, you're using the hydrate() function instead of the render() function...