Number.NaN : NaN « Number Data Type « JavaScript Tutorial






  1. JavaScript Tutorial
  2. Number Data Type
  3. NaN

The NaN property represents a value that is not equal to any numeric value.

<html>
    <body>
    <script language="JavaScript">
    <!--
    if(123 == Number.NaN){
         document.write("This is not a number");
    }
    -->
    </script>
    </body>
    </html>








5.14.NaN
5.14.1.Number.NaN