React DOM

Now that we’ve learned about component definitions and their instantiation, we can move to the App component’s instantiation. It has been in our application from the start, in the src/index.js file:

src/index.js

import * as React from 'react';

import ReactDOM from 'react-dom';

import App from './App';

ReactDOM.render(

<App />,

THE ROAD TO REACT

In the Road to React, we’ll use create-react-app²¹ to bootstrap your application.

Command Line

npx create-react-app hacker-stories

Navigate into your new folder after the setup has finished:

Command Line

cd hacker-stories

In the beginning, everything you need is located in the src/ folder. The main focus lies on the src/App.js file which