Node.js is an open-source server environment that is designed to develop scalable network applications. It is a cross-platform JavaScript runtime environment and runs the V8 JavaScript engine.

Features of Node.js include:

Event-driven or Asynchronous: The APIs of the Node.js library is asynchronous which means that Node.js based server does not have to wait for an

API to return data. The server automatically moves to the next API after calling it and a notification mechanism of Events of Node.js helps the server to attain a response from the previous API call.

Faster: It is evident that the Node.js library is very fast when it comes to code execution as it is built on Google Chrome’s V8 JavaScript Engine.

Single-Threaded Yet Highly Scalable: Node.js makes use of a single-threaded model with event looping. Event mechanism helps the server to respond in a non-blocking manner and makes the server highly scalable as opposed to outdated servers that develop limited threads to manage requests. Node.js makes use of a single-threaded program and the same program has the potential to offer service to a much larger number of requests in comparison to traditional servers such as Apache HTTP server.

No Buffering: One of the best features of Node.js applications is that they never buffer any data as these applications simply output the data in chunks.