Prototype - update() Method

Quiz

This method updates hash with the key/value pairs of object. The original hash will be modified.

Duplicate keys will cause an overwrite of hash keys. If it does not find a key, then it will add it as a new key/value pair.

Syntax

hash.update(object);

Return Value

Returns a modified hash.

Example

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var h = new Hash({ a: 'apple', b: 'banana', c: 'coconut' });
            var t = h.update({a: 'amrood', d:'drum'});
            alert( "New Hash : " +  t.inspect() );
         }
      </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_hash_processing.htm

Print Page