Event in Node

Node.js Event Emitter is a core module that allows objects to emit and listen to events. It's the foundation of Node.js's event-driven architecture.

Key Concepts

Event-driven programming model
Objects can emit and listen to events
Core of Node.js architecture
Used throughout Node.js ecosystem

Example 1

Code

// const EventEmitter = require("events");
// const myEvent = new EventEmitter();

// myEvent.on("message", (msg) => {
//   console.log(msg);
// });

// myEvent.emit("message", "This is the message from Event");

Summary

Understanding event is essential for mastering node. Practice these examples and experiment with variations to deepen your understanding.

Key Takeaways

event is a fundamental concept in node
Practice with these examples to build confidence
Experiment with variations to explore edge cases
Understanding event will help you in technical interviews

event.js

// const EventEmitter = require("events");
// const myEvent = new EventEmitter();

// myEvent.on("message", (msg) => {
//   console.log(msg);
// });

// myEvent.emit("message", "This is the message from Event");

Event in Node

Event in Node

Key Concepts

Example 1

Code

Summary

Key Takeaways

Try It Yourself

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