Handling and dispatching events with Node.js

Node.js is an open-source, event-driven runtime environment primarily used for building scalable server-side applications with JavaScript, utilizing asynchronous I/O for cross-platform compatibility. It features a variety of core modules such as 'http', 'url', 'querystring', 'path', 'fs', and 'os', which facilitate server creation, data handling, and other operations. The 'events' module, integral to Node.js, allows for the creation and management of custom events through the EventEmitter class, which is foundational to the Node.js core API's functionality. The 'once' method ensures certain events are handled only once per application lifecycle, while error events can be managed to prevent crashes. Developers are encouraged to explore the official documentation for more complex event-driven designs. For monitoring performance and debugging, tools like LogRocket can capture user sessions, console logs, and network requests, providing insights into application performance and user experience.