[Dynapi-Widgetdev] aggregating prototypes

[Theo B. <be...@ot...>]

Hi

Is there any difference between the two?

1st case 
---------------------------------
   function A() { }                             
   function B() { }  
   B.prototype = new A()  

2nd case 
---------------------------------
   function A() { }                             
   function B() { }  
   B.prototype = A.prototype 



I'm getting the same result in either case.
Please, try the following code by changing
the prototype assignment 

<script language="Javascript" >      
   function A() { }   
   A.prototype.say = function() {alert("a say")}       
                          
   function B() { }  
   B.prototype = A.prototype   
   B.prototype.A_say = A.prototype.say
   B.prototype.say = function() {       
     alert("b say")  
     this.A_say()
   }                   
   
   function C() { }  
   C.prototype = B.prototype   
   C.prototype.B_say = B.prototype.say
   C.prototype.say = function() {      
     alert("c say")      
     this.B_say()
   }    
   
   var c = new C() 
   c.say()           
</script> 



Theo

-----------------------------------
Theo Bebekis
Thessaloniki, Greece
be...@ot...
-----------------------------------