It has evolved from a browser only scripting language to a standard which has found acceptance as a tool for desktop development in the form of Electron, mobile development in the form of Xamarin and Cardova.
For a short time it was a supported option to develop full fledged games using Unity game engine. Node JS has been accepted as a full fledged web server which can be used to host mission critical websites.
Next generation javascript libraries like Reach JS and Angular are frameworks unto themselves. They allow the developers to customize or create their own elements and attributes and features to extend the HTML and provide far more control over the code structure.
Automated testing is a set of technical scripts that can be run repeatedly at any time of day.When a software tester manually checks a system, he can make a mistake, especially when an application contains hundreds to thousands of lines of code. Automation helps the QA team avoid these human errors in application testing and executes checks in a faster time frame than if it were done in person.
You get full visibility into the development and QA process via onsite meetups, videoconferencing, and shared tools for real-time project tracking. Daily cost and performance index evaluation allows us to spot any bottlenecks right away and reliably identify the root causes. Node JS was designed from the start to be a high performance javascript runtime. It is an asynchronous event driven javascript runtime which lends itself well to the short span activity of a web page.Unlike web servers like IIS and Apache, Node.js employs an event-driven nonblocking I/O model resulting in low memory, high performance web server that turns it into simple and powerful, impeccable for data-demanding real-time applications that run through distributed networks.
Developers also love Node JS as it unifies the server side and client side development environment in a single simple programming language called javascript. In its simplest form it is easy to get started with one simple installer and a text editor.
Being popular, millions of libraries have come up to add features to this basic runtime. Some of them like express have become very popular and almost a standard when developing applications on Node server.