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Prototype update() Method
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:
Return Value :
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>
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To understand it in better way you can Try it yourself.
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