2 posts tagged with "event emitter"

In modern software systems, event-driven architectures are commonly used to handle asynchronous processes in a decoupled and efficient manner. One key tool to implement such architectures in Node.js is the EventEmitter class, which enables objects to emit and listen for events. In this article, we'll explore how to build a flexible, reusable, and generic event policy in Node.js using ES6 syntax.

Node.js is a powerful, event-driven runtime environment built on Chrome's V8 JavaScript engine. One of its core components is the EventEmitter class, which is fundamental to how Node.js applications handle asynchronous events. In this article, we'll delve into what the EventEmitter is, its advantages and disadvantages, and provide a real-world example of how to use it.

What is EventEmitter?​

The EventEmitter class is part of the Node.js events module and provides a way to handle asynchronous events. It allows objects to emit events and other objects to listen for those events and execute callbacks when they occur. This pattern is essential for building non-blocking, event-driven applications.