Object.prototype.clone

[Eugen.Konkov at aldec.com]

I have clone objects like this:
//----------------------------------------------------
function cloneObject( srcObj ) {
  if( srcObj == null ) { return srcObj; } //undefined or null

  var newObject;
  switch( typeof(srcObj) ) {
    case "object":
      newObject = new srcObj.constructor();
      for( var property in srcObj ) {
       //Do not clone inherited values
       if( srcObj.hasOwnProperty(property) || typeof( srcObj[property] ) === 
'object' ) {
         newObject[property]= cloneObject( srcObj[property] );
         }
       }
      break;

    default:
      newObject = srcObj;
      break;
    }

  return newObject;
  }


----- Original Message ----- 
From: "Peter Michaux" <petermichaux at gmail.com>
To: <es4-discuss at mozilla.org>
Sent: Monday, October 22, 2007 5:07 AM
Subject: Object.prototype.clone


> Hi,
>
> Is there a plan for a "clone" function in ES4?
>
> Object.prototype.clone = function() {
>        function F() {}
>        F.prototype = o;
>        return new F();
> };
>
> The earliest reference I have found to this function is a post by
> Lasse Reichstein Nielsen in 2003 on comp.lang.javascript
>
> http://groups.google.com/group/comp.lang.javascript/msg/5d06e72e55d5bf11
>
> In the past year this function has been evangelized by Douglas Crockford.
>
> http://javascript.crockford.com/prototypal.html
>
> Given the idea has persisted for at least a four year period as
> something useful in a prototype-based language, would a clone function
> be a good addition to the language itself?
>
> Peter
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