Nodejs is a server-side runtime environment made on top of Chrome’s V8 JS engine. The implemented
non-blocking and event-driven I/O models makes Nodejs fast and effective server technology.
It is also cross-platform and can run in Windows, Linux and MacOS.
Why we use Node JS
the programming language consistency and speeds up the app development process. The vast choice of npm modules
makes adding new features fast and easily.
The Node Package Manager simplifies managing additional modules and integrating them into your app. The Node.js community is wide and rich following code-sharing principles which allows find module for your exact requirements.
The applications with real-time interaction require low server response time that Nodejs is ready to provide. Such modules like Socket.io allow to creating instant messaging chats, games and more. The fast speed and asynchronous behavior put real-time apps to new level.
Node.js High-Level Architecture
From all available computing resources the bottleneck in input/output (I/O) operations is the main reason for
performance problems. It is where Node model works scaling I/O effectively and don’t let applications crawl.
Node.js implements the mechanism of organizing I/O operations into the queue and helps to avoid lockups.
Build-in Node.js threads handle I/O operations internally and return data when it’s ready which is ideal for real-time apps.
Companies who switched to Node JS
production web projects.