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🚀 What Is the EventEmitter Class, and How Do You Use It?

The EventEmitter class in Node.js (from the events module) allows handling custom events asynchronously, following the Observer pattern. 🔥

🛠 How It Works:
✅ Emit Events – Trigger custom events using .emit().
✅ Listen for Events – Use .on() or .once() to handle events.
✅ Remove Listeners – Use .off() or .removeListener() to avoid memory leaks.

📌 Common Use Cases:
✔️ Handling asynchronous actions (e.g., file uploads, API responses).
✔️ Logging, notifications, and custom event-based communication.
✔️ Creating Pub/Sub (Publish-Subscribe) systems.

💡 EventEmitter helps build scalable, event-driven applications! 🎉

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