Introduction to Node.js

Node.js is a JavaScript runtime built on Chrome’s V8 JavaScript engine. The V8 engine is the open-source JavaScript engine that runs in the Chrome, Opera and Vivaldi browsers.

Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient.

Node.js is a cross-platform runtime environment and library for running JavaScript applications outside the browser.

It is used for creating server-side and networking web applications.

Extension of Node.js  is (.js)

It is open source and free to use. It can be downloaded from this link https://nodejs.org/en/

Node.js is released under the MIT license (The MIT License is a permissive free software license originating at the Massachusetts Institute of Technology (MIT)).

Notes:

Node.js = Runtime Environment + JavaScript Library