In this tutorial Node.js you'll go step by step from the basic concepts all the way to building a REST API with Express.js. The main superpower of Node.js is that JavaScript no longer has to live only in the browser—it can run on the server too. That means you can start building website backends, APIs, file tools, automation scripts, real-time apps, and more, all with just one language: JavaScript.
What's Next
Start with the Setup lesson and check whether Node.js is installed on your computer.