Node.js is a powerful runtime environment that allows developers to run JavaScript code server-side. Introduced in 2009, it revolutionized backend development by enabling JavaScript, traditionally used for front-end scripting, to also handle server-side logic. Node.js utilizes an event-driven, non-blocking I/O model, making it lightweight and efficient for building scalable network applications. It has a rich ecosystem of libraries and frameworks, facilitating rapid development of web servers, APIs, and real-time applications. Node.js has become a cornerstone of modern web development, offering flexibility, performance, and a unified language across the entire stack.
