JavaScript 계승 패키지 소개

 
  
/** 
  
*        ,         ,          ,     
  
*        ,       ,        ,                  
  
*/ 
  
function extend(obj,prop){ 
  
function F(){ 
  
 
  
} 
  
//        object  ( json  )  ,  json key value   F      F.prototype.key = value 
  
if (typeof(obj) == "object") { 
  
for(var name in obj){ 
  
F.prototype[name] = obj[name]; 
  
} 
  
} else {//        function    ,           F  ,prop      (json  ),   prop   F      
  
F.prototype = obj.prototype; 
  
for(var name in prop){ 
  
F.prototype[name] = prop[name]; 
  
} 
  
} 
  
return F; 
  
} 
  
//          ,      json   key,value   extend    F     ,   person    F  ,  person        ,       F      name sex 
  
var person = extend({ 
  
name:"xxc", 
  
sex:"man" 
  
}); 
  
// person    ,  extend   ,   person      F  ,        hope:"more money"   F  ,  F          name,sex,hope 
  
//   F    ,  person     F    , name,sex,hope 
  
var person = extend(person,{ 
  
hope:"more money" 
  
}); 
  
alert(person.prototype.name);//xxc 
  
alert(person.prototype.sex);//man 
  
alert(person.prototype.hope);//more money