Gain insights into V15 React fundamentals, API work, code organization, testing, and state management. Discover hands-on skills by building a Hacker News App for your portfolio.

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If you’re working with a legacy React codebase, then this course will prove useful. React has seen a great deal of change over the years, but there might be situations where you have to work with an older version.

In this course, you will learn the fundamentals of V15 React. You will learn how to work with an API, how to organize and test your code as well as how to give your React app state. Throughout this course, you will have hands-on experience building a fully functional Hacker News App. By the end of this course, you will be prepared to build your own applications and have something to showcase in your portfolio.

If you’re looking for the updated version of this course featuring V16, please visit The Road to React: The one with Hooks.

Nicole Ferguson

I’m doing Robin’s Road to Learn React course this weekend & I almost feel guilty for having so much fun.

 Web developer

Eric Priou

The Road to learn React by Robin Wieruch is a must read. Clean and concise for React and JavaScript.

Web developer

Nicholas Hunt-Walker

This is one of the most well-written & informative coding books I’ve ever worked through. A solid React & ES6 introduction.

Instructor at a Seattle Coding School

Andre Vargas

The Road to Learn React by Robin Wieruch is such an awesome book! Most of what I learned about React and even ES6 was through it!

Muhammad Kashif

I recommend this to any student or professional interested in learning react basics to advanced level. I have 17 years of experience in web and desktop app development, and before reading this I was having trouble in learning react. It works like magic.

The Road to React: The One with Class Components

Local component state, also known as the internal component state, allows you to save, modify, and delete properties stored in your component. The ES6 class component then uses a constructor to initialize local component state. The constructor is called only once when the component initializes:

Let's introduce a class constructor.

class App extends Component {

  constructor(props) {
    super(props);
  }
  ...

}

The App component is a subclass of `Component`, so the `extends Component` is in the App component declaration.

It is mandatory to call `super(props);`. It sets `this.props` in your constructor in case you want to access them there. They would be `undefined` when accessing `this.props` in your constructor otherwise. In this case, the initial state of the component should be the sample list of items:

This section will guide you through the basics of React. It covers state and interactions in components as we move past static components. We will also cover the different ways to declare a component, and how to keep components composable and reusable.

Introduction

Intro to React and some JavaScript Basics

Basics in React

Getting Real with an API

Code Organization and Testing

Advanced React Components

State Management in React and beyond

Final Steps to Production

Appendix: Bootstrapping your React App

Local Component State