design-pattern/example/observer.html

Javascript design patterns for both browser and Node.js

<script type="text/javascript" src="../src/observer.js"></script>
<script type="text/javascript">
	
var subject = new observerPattern.createSubject();

var MyObserverClass = function(id){
	this.id = id;
	this.update = function(context){ 
	  console.log('Observer(' + this.id + ') context',context);
	};
};	

var observer1 = new MyObserverClass(1);
var observer2 = new MyObserverClass(2);

subject.addObserver(observer1);
subject.addObserver(observer2);

var context = {data: 'data'};
subject.notify(context);

</script>