Introduction to Node.js What is Node.js? Node.js is an open-source, cross-platform runtime environment that allows developers to execute JavaScript code on the server side. Built on Chrome's V8 JavaScript engine, Node.js enables the development of scalable network applications with a focus on performance and efficiency. It allows for the creation of real-time web applications, APIs, and microservices, making it a popular choice for modern web development. History and Evolution Node.js was created by Ryan Dahl in 2009. The initial motivation behind Node.js was to create a platform capable of handling multiple concurrent connections efficiently, especially for I/O-heavy applications. Over the years, Node.js has evolved significantly, driven by contributions from the open-source community and companies like Joyent, which played a pivotal role in its early development. In 2015, Node.js was transitioned to the Node.js Foundation, which later became part of the OpenJS Foundation. This tr...