Global.NaN
JavaScript 1.3+, JScript 1.0+ Nav4.06+, IE 3+ Syntax
NaN
Description
The NaN object represents an object that is not equal to any number, including itself. NaN stands for Not a Number.
Example
Listing 6.139 shows how the NaN object is used in a comparison.
Listing 6.139 Example Using the NaN Object
<html>
<body>
<script lanuguage="JavaScript">
<!–– Hide
if ("a" != NaN){
document.write("This is not a number");
}
// End Hide ––>
</script>
</body>
</html>
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