Emitting Events

1433417188.js

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

var Ticker = function(){
	var self = this;
	setInterval(function(){
		self.emit('tick');
	},1000);
};
util.inherits(Ticker,EventEmitter);

var ticker = new Ticker();
ticker.on("tick", function(){
	console.log("tick");
});