Client side notification center. Publsih/Subscribe implementation in Javascript.

notificationcenter.js

(function(module){
	var observers = [];
	module.exports.notificationcenter = {
		publish: function(notification, publisher, info){
			var ubounds = observers.length;
			var i = 0;
			for(i; i<ubounds; i++){
				if(!observers[i]) continue;
				if(observers[i].notification != notification) continue;
				if(observers[i].publisher != null && observers[i].publisher != publisher) continue;
				try{
					observers[i].observer[notification].apply(observers[i].observer, [publisher, info]);
				}catch(e){
					console.log([e, observers[i]]);
				}
			}
		}
		, subscribe: function(notification, observer, publisher){
			observers.push({"notification": notification, "observer":observer, "publisher":publisher});
		}
		, unsubscribe: function(notification, observer, publisher){
			var i = 0;
			var ubounds = observers.length;
			for(i; i<ubounds; i++){
				if(observers[i].observer == observer && observers[i].notification == notification){
					observers.splice(i, 1);
					break;
				}
			}
		}
	};
})(typeof module !== 'undefined' ? module.exports : module = {exports: {}});

var observer = {"call to action was clicked": function(publisher, info){
console.log(publisher, info);
}};
notificationcenter.subscribe("call to action was clicked", observer, null);
notificationcenter.publish('call to action was clicked', null, {"id":3, "name":"just test info"});