Node.js FAQ: Top Questions
19. What is the Events module in Node.js?
The Events module is a built-in Node.js module that implements the EventEmitter class, enabling event-driven programming by allowing objects to emit and listen for events.
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EventEmitter:
Core class with methods like
on,emit,once,removeListener. - Custom Events: Define and trigger application-specific events.
- Use Case: Pub/sub patterns, custom notifications.