When it comes to choosing the best among a plethora of advanced programming languages for mobile & web development, developers have a wide range of choices to get started. Google’s Go and Node.js are two of the technologies that are commonly used for backend programming by web developers. Both of these technologies are relatively new and gaining more popularity with every passing day and for some good reasons. What is Node.js? Node.js is a runtime environment for JS code execution. It is a server-side platform, which runs on various platforms, including Mac OS X, Windows, Unix, and Linux. It is a free, open-source programming server framework. Node.js provides a rich library of different JavaScript modules that simplify the web development process and compiles JavaScript code into native machine code through some complex optimizations. Node.js runs on a cross-platform and open-source runtime environment to develop networking and server-side applications. Moreover, Node.js makes use of JavaScript and a lot of UI frameworks and libraries are using JavaScript/TypeScript such as Angular, React, VueJS, etc. which suggests the language is more engaging than others. However, languages such as Go are superior options to Node.js when it comes to scalability and concurrency. This is because Node.js, being single-threaded, may lead to the inhibition of the event loop by the CPU-bound tasks that can further slow down a program. This would lead to a slow application performance. Salient Features of Node.js Open source: It has an open-source community. The Node.js community has produced many excellent modules to add additional capabilities to its applications. Single-threaded: With event looping, it follows a single-threaded model. License: Node.js has been released under the MIT license. Extremely fast: Its library is very fast in code execution since it is built on Google Chrome’s V8 JavaScript Engine. Highly Scalable: Event mechanism helps the server to respond in a non-blocking way this makes Node.js highly scalable. No buffering: These applications simply output the data in chunks; Hence, Node.js applications never buffer any data. It cuts down the overall processing time while uploading audio and video files. I/O is Asynchronous and Event-Driven: All APIs of Node.js library are non-blocking i.e. asynchronous. Therefore, the server never has to wait for an API to return data. Application of Node.js It supports single-page applications. It is a data-intensive real-time application (DIRT). It has JSON APIs-based applications....