Node.js enables programmers to design real time, server side, dynamic web applications that run on any distributed system, such as Linux, Microsoft Windows and Os). Node.js also includes many rich JavaScript libraries, most of which are hosted on npm based websites, making web based programming a breeze. Without employing the concept of threading, the event driven programming methodology used in Node.js allows for the creation of deep scalable servers using callbacks to communicate when a task is completed.
We need to include the Node.js libuv package to allow single threaded event loop capabilities in web pages. This (libuv) module offers a thread pool used to handle the execution of concurrent requests. However, one disadvantage of this approach is the inability to support vertical scaling. It is compatible with all internet protocols, including HTTP, DNS and TCP.