event module in node js

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showing results for - "event module in node js"
Sara
25 Feb 2017
1const EventEmitter = require('events');
2
3class MyEmitter extends EventEmitter {
4  foo() {
5    this.emit('test');
6  }
7}
8const myEmitter = new MyEmitter();
9myEmitter.on('test', () => console.log('Yay, it works!'));
10
11myEmitter.foo();	// Yay it works!
Joshua
28 Apr 2020
1const myEmitter = new MyEmitter();
2let m = 0;
3myEmitter.on('event', () => {
4  console.log(++m);
5});
6myEmitter.emit('event');
7// Prints: 1
8myEmitter.emit('event');
9// Prints: 2
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