Written in 2013, when Node.js was rapidly gaining mainstream adoption.

Node.js has become a major force in server-side development, with a rapidly growing ecosystem of modules and an active community. Time to take a closer look.

At first glance, Node.js excels at real-time applications — for example, building a WebSocket server takes just a few lines of JavaScript. Adding a simple HTML5-based multi-user chat on top of that requires surprisingly little additional effort.

At its core, Node.js provides server-side JavaScript powered by Google’s V8 engine. The key advantage is its event-driven, non-blocking I/O model — everything runs asynchronously wherever possible. This relies heavily on callbacks, which can make code harder to follow. JavaScript in general tends to become unwieldy in larger projects (though modern tooling and TypeScript have since addressed many of these concerns).

Getting started takes less than ten minutes. The Node Package Manager (npm) makes it easy to pull in modules. Deployment options include Heroku and AWS Elastic Beanstalk, with additional AWS services supported through the official SDK.

For those working in the JVM ecosystem, Vert.x offers a similar event-driven model. C developers may want to look at libev or libevent.