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Node.js is a JavaScript runtime that is built on Chrome’s V8 JavaScript engine. This engine converts the JavaScript code into a faster machine code. Its asynchronous and event-driven nature enables the creation of applications that can handle many connections at once making it possible to effortlessly **develop web applications**. The learning curve is not steep and is it can be mastered easily once the basics of JavaScript and OOPS are thoroughly covered. It does not require multiple threads and also less memory/resources are needed.