<html>
<head>
<title>
Logical Not Example 2
</title>
<script type="text/javascript">
alert( !! "blue"); //true
alert( !! 0); //false
alert( !! NaN); //false
alert( !! ""); //false
alert( !! 12345); //true
</script>
</head>
<body>
</body>
</html>