Event-Driven Architecture

Node.js relies heavily on events rather than traditional threading.

Overview

Node.js relies heavily on events rather than traditional threading.

Code Example

import { EventEmitter } from "node:events";\nconst ev = new EventEmitter();\nev.on("ping", () => console.log("pong"));\nev.emit("ping");

Web Development Context

In modern web development, understanding Event-Driven Architecture is crucial. Node.js is widely used for building APIs, real-time applications, and microservices. Mastery of this concept allows you to build efficient, scalable, and secure backend systems.

Common Mistakes

• Blocking the event loop with heavy synchronous tasks.
• Exposing secrets in code instead of environment variables.
• Forgetting to handle promise rejections.

Next Steps

To solidify your understanding, review the related references and try out the practice challenges.