JavaScript Reference/Javascript Methods/isNaN
Версия от 21:30, 25 мая 2010; (обсуждение)
"isNaN()" Example
<source lang="javascript">
<html> <body> <button onclick="alert(isNaN("12.34"));">isNaN False</button> <button onclick="alert(isNaN("Hello"));">isNaN True</button> </body> </html>
</source>
"isNaN()" Syntax, Parameters and Note
<source lang="javascript">
Note: Is the specified string NOT numeric. Returns true or false.
Syntax:
isNaN(param1) Parameters:
param1 Required; the string to be evaluated. </source>