Node.js Runtime Environment Overview

Node.js, or simply Node, is an open-source, cross-platform JavaScript runtime environment. It allows running JavaScript code outside of the browser, leveraging the V8 JavaScript engine from Google Chrome. Node.js features event-driven and non-blocking I/O models, making it highly suitable for handling concurrent connections in real-time applications such as online games, chat apps, and communication services. Its modular architecture and npm (Node package manager) facilitate code sharing and reuse, fostering the growth of its ecosystem. Beyond server-side development, Node.js is used in toolchains, desktop applications, IoT devices, and enables full-stack JavaScript development, enhancing developer productivity and agility. Major companies like Netflix, PayPal, and Walmart utilize Node.js to improve application performance and streamline development processes.