Prototype - Object clone() Method

Quiz

This method clones the passed object using the shallow copy. It copies all the original's properties to the result.

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>

Output

prototype_basic_object.htm

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