Why use Node.js as for building your backend?

Node.js is a popular runtime environment for building server-side applications in JavaScript. It is built on top of the Chrome JavaScript engine and allows developers to build scalable network applications using JavaScript on the server side.

There are several reasons why Node.js has become popular:

1. JavaScript is a widely-used programming language, and using Node.js allows developers to use the same language on the server side as they do on the client side. This can make it easier for developers to build full-stack applications and reduce the need to learn multiple languages.
2. Node.js has a large and active community of developers, with many open-source libraries and frameworks available for building server-side applications. These libraries and frameworks make it easier to build and deploy applications, as well as add features such as authentication and database access.
3. Node.js is designed for building scalable, high-performance applications. It uses an event-driven, non-blocking I/O model, which makes it well-suited for building applications that need to handle a large number of concurrent connections.
4. Node.js has strong support for building real-time applications, such as chat and collaboration tools, thanks to its event-driven architecture and built-in support for WebSockets.

Overall, Node.js is a popular runtime environment for building server-side applications due to its wide adoption, active developer community, scalability, and support for building real-time applications.