Definition and Usage The NaN property is a special value representing Not-a-Number. This property is used to indicate a value is not a numb...
Definition and Usage
The NaN property is a special value representing Not-a-Number. This property is used to indicate a value is not a number. A number object may be set to this value to indicate that it is not really a number.Tip: Use the isNaN() global function to see if a value is an NaN value.
Syntax
Number.NaN |
Example
<script type="text/javascript"> var Month=30; if (Month < 1 || Month > 12)
{
Month = Number.NaN;
}document.write(Month); </script> |
The output of the code above will be:
Nan |
