String NaN

[naro pad]

I have a jsp page where I have a form and some javascripts. In the form I'm passing as hidden value a variable from the javascript. I have check that is pass me the right values to the action jsp and is work fines.

Now I have try to add this code to another jsp page and I'm gettting the value of the hidden as NaN.

Why is that happening? What is NaN?

Thanks

[Marco Ehrentreich]

Hi panayiotis,

NaN stands for Not a Number. It's hard to say what condition is producing this value without some more details of your code but perhaps you can figure it out yourself now that you know the meaning ;)

Marco

[Eric Pascarello]

The hidden form field is a string. Convert the string to a number use parseFloat or parseInt before doing your calculation.

Eric