var events = require('events'); var util = require('util'); function MyEventEmitter() { if (false === (this instanceof MyEventEmitter)) return new MyEventEmitter(); /* inherit all prototype objects, methods, etc */ events.EventEmitter.call(this); /* hmm this calls a ctor? notice it's not a method */ } /* ensure that the prototype methods of the specified superCtor are inherited into ctor */ util.inherits(MyEventEmitter, events.EventEmitter); MyEventEmitter.prototype.poke = function(msg) { this.emit('poke', 'poking ' + msg) } MyEventEmitter.prototype.yell = function(msg) { this.emit('poke', 'yelling at ' + msg) } var ee = new MyEventEmitter; ee.on('poke', function(msg) { console.log(msg); }) .on('yell', function(msg) { console.log(msg); }); ee.poke('kyle'); ee.yell('bro');