Node.js v15.2.1 on Linux s390x

Node.js, also known as Node, is an open-source and cross-platform JavaScript runtime environment that allows JavaScript code to run outside of a browser. Created by Ryan Dahl in 2009, it aims to build high-performance web servers and network applications. Node.js is based on Google Chrome's V8 JavaScript engine and can run on various operating systems including Windows, Linux, Unix, and Mac OS X. One of its key features is its event-driven and non-blocking I/O model, making it highly suitable for handling numerous concurrent connections. This capability makes Node.js exceptional for developing real-time applications like online games, chat applications, and real-time communication services. Furthermore, Node.js utilizes a modular architecture through npm (Node package manager), allowing community members to share and reuse code, significantly promoting the growth and expansion of the Node.js ecosystem. Besides server-side development, Node.js is also used for building toolchains, desktop applications, and IoT devices. It can handle file systems, operate databases, and process network requests, enabling developers to write full-stack applications in JavaScript, thereby greatly enhancing development efficiency and convenience. Many large enterprises and organizations, such as Netflix, PayPal, and Walmart, have adopted Node.js as their web application development platform, leveraging it to improve application performance, streamline development processes, and respond more quickly to market demands.