2 ways to inherit from EventEmitter in Node.JS

custom-eventemitter1.js

var EventEmitter = require('events').EventEmitter;

module.exports = new EventEmitter();

exports.emitSomethingLater = function()
	setTimeout(function() {
	  module.exports.emit('something');
	}, 1000);
}

custom-eventemitter2.js

var util = require("util"),
	events = require("events");

function CustomEmitter (opts){
	events.EventEmitter.call(this);
}
util.inherits(CustomEmitter, events.EventEmitter);

CustomEmitter.prototype.emitSomething = function() {
	this.emit('something');
};

module.exports = CustomEmitter;