Node.JS
Node.js is a software platform based on the V8 engine (which translates JavaScript into machine code) that transforms JavaScript from a highly specialized language into a general-purpose language.
Node.js adds the ability to JavaScript to interact with I / O devices through its API, which is written in C ++, connect other external libraries written in different languages, providing calls to them from JavaScript code. Node.js is used mainly on the server, acting as a web server, but it is possible to develop on Node.js and desktop window applications (using NW.js, AppJS or Electron for Linux, Windows and macOS) and even program microcontrollers (for example, tessel, low.js and espruino).
At the core of Node.js is event-driven and asynchronous (or reactive) programming with non-blocking I / O.