react programming book pdf – Page 4

Upgrade React

Upgrading an existing React application to version 18 only requires two steps.

If you are already using the latest version of create-react-app which uses React version 18 you can skip this section.

To use React in production, you need npm which is included with Node.js.

To get an overview of what React is, you can write React code directly in HTML.

But in order to use React in production, you need npm and Node.js installed.

The quickest way start learning React is to write React directly in your HTML files.

The easiest way to get started with creating HTML files is W3Schools Spaces!

It is the perfect place to create, edit, and share your work with others!

React is a JavaScript library for building user interfaces.

React is used to build single-page applications.

React allows us to create reusable UI components.