Book Image

React Key Concepts

By : Maximilian Schwarzmüller
Book Image

React Key Concepts

By: Maximilian Schwarzmüller

Overview of this book

As the most popular JavaScript library for building modern, interactive user interfaces, React is an in-demand framework that’ll bring real value to your career or next project. But like any technology, learning React can be tricky, and finding the right teacher can make things a whole lot easier. Maximilian Schwarzmüller is a bestselling instructor who has helped over two million students worldwide learn how to code, and his latest React video course (React — The Complete Guide) has over six hundred thousand students on Udemy. Max has written this quick-start reference to help you get to grips with the world of React programming. Simple explanations, relevant examples, and a clear, concise approach make this fast-paced guide the ideal resource for busy developers. This book distills the core concepts of React and draws together its key features with neat summaries, thus perfectly complementing other in-depth teaching resources. So, whether you've just finished Max’s React video course and are looking for a handy reference tool, or you've been using a variety of other learning materials and now need a single study guide to bring everything together, this is the ideal companion to support you through your next React projects. Plus, it's fully up to date for React 18, so you can be sure you’re ready to go with the latest version.
Table of Contents (16 chapters)

What Are Components?

A key concept of React is the usage of so-called components. Components are reusable building blocks which are combined to compose the final user interface. For example, a basic website could be made up of a header that includes a navigation bar and a main section that includes an authentication form.

Figure 2.1 An example authentication screen with navigation bar.

If you look at this example page, you might be able to identify various building blocks (i.e., components). Some of these components are even reused.

In the header with the navigation bar you will find the following components:

  • The navigation items (Login and Profile)
  • The Logout button

Below this, the main section displays the following:

  • The container that contains the authentication form
  • The input elements
  • The confirmation button
  • A link to switch to the New Account page

Please note that some components are nested inside other...