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Prototype update() Method


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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's 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>

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



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