There is a isNaN function which checks exactly what you need.
Check here for more info: http://help.adobe.com/en_US/AS2LCR/Flash_10.0/help.html?content=00000571.html
Pergunta
I am using NumericStepper in my application. I want to check the NumericStepper is NaN or not? And I don't want to check like (!value). This is one of the restriction for my application. So I have to check exactly NumericStepper value is NaN or not.
Solução
There is a isNaN function which checks exactly what you need.
Check here for more info: http://help.adobe.com/en_US/AS2LCR/Flash_10.0/help.html?content=00000571.html
Outras dicas
You can also check by "NaN" ...
NaN is Number Constant...so u can check your value...