Prototype Object clone() Method

Syntax:

object.clone()  ;

Return Value :

Returns a clone of object.

Example:

<html>
<head>
<title>Prototype examples</title>
<script type="text/javascript" 
   src="/javascript/prototype.js">
</script>

<script>

function showResult(){

   var o = { name: 'Prototype', version: 1.5, 
             authors: ['sam', 'contributors'] };
   var o2 = Object.clone(o);

   o2.version = '1.5 weird';
   o2.authors.pop();

   alert( " Value of o.version : " + o.version );
   // Returns 1.5

   alert( " Value of o2.version : "  + o2.version );
   // Returns 1.5 weird

   alert( " Value of o.authors : " +  o2.authors );
   // Returns ['sam'] 
}

</script>
</head>

<body>

  <p>Click the button to see the result.</p>
  <br />
  <br />
  <input type="button" value="Result" onclick="showResult();"/>

</body>
</html>

To understand it in better way you can Try it yourself.