NodeJS applications are developed with a modular approach. This allows developers to leverage microservice architecture which results in smoother, easier and incremental updates. Maintenance is easy for developers because of loosely-coupled and independent services.
Unlike traditional web techniques, websites built with NodeJS takes less space. Traditional web-serving techniques where each request starts a new thread, taking up system RAM, thus maximizing the amount of RAM availability. On the contrary, NodeJS operates on a singlethread, using non-blocking I/O calls, allowing it to support tens of thousands of concurrent connections held ina single event loop.