NodeJS is a cross-platform, open-source JavaScript runtime environment capable of executing JS code outside of a web browser. It is built on top of the Chrome V8 JavaScript engine.

What are the prerequisites for learning Node.js?

Following are the various perquisites for learning NodeJS:• A good understanding of the JavaScript programming• Fluency in using command online• Practical knowledge of OOP (Object-oriented programming) and functional programming paradigms

Why should you learn Node.js?

NodeJS allows you to:• Develop beyond the web• Develop complex and powerful applications• Increase agility and flexibility with microservices• Write JavaScript code on both the client and the server-side

How to learn Node.js?

Start learning Node.js with these free Node.js tutorials. Books are always your best buddies when it comes to learning any new technology like NodeJS. Read extensively about topics and then practice them arduously. The practice is the key to develop practical knowledge.

Primarily, NodeJS is used for non-blocking, event-driven servers. Other notable uses of Node.js are:• Building multiplayer web browser games• Creating Real-Time Applications, complex SPAs (Single-Page Applications), and even websites• Developing backend API services

How does node.js work?

NodeJS is completely event-driven. A Node.js server consists of one thread processing one event after another. It is a single-threaded server that responses to callbacks but never blocks on the main thread.