Number Validation

[asivakrupa]

Hi,

I need to check whether the user has entered a numeric value or not in a text box using Javascript. What function can be used for this?

Thanks in advance.

Regards,
Sivakrupa

[Dormilich]

you could use isNaN() or the typeof operator.

[asivakrupa]

That worked out.
Yeah thanks.

[acoder]

I would recommend regular expressions, e.g.

/^-?\d*\.?\d+$/