regular expressions checks each character, hence there's no exact way to
see if the total value of the field is an integer.

You can do this:
var reDigit =3D /\d+$/; //what you did...

or maybe this:
var reDigit =3D /\d+[^.]$/;

or:

if(field.value.search(/\D+/) !=3D -1) alert("You can only fill in
digits...");


But I'd rather just use parseInt() or something to convert the value to
an integer.

I don't know if this helps you, or if I'm just rambling...


/Robert



-----Ursprungligt meddelande-----
Fr=E5n: Garrett Steed [mailto:gmsteed@s...]
Skickat: den 23 oktober 2002 20:18
Till: JavaScript HowTo
=C4mne: [javascript_howto] regular expressions


Not to long ago I sent a form validation example that looped through any
generic form and would check to see each form element was either
positive, had data in it, or was a number.  To check if the form
elements was an number I used this:

if(isNaN(parseInt(domLocation.elements[i].value))){do this thing}

this works as long as the data doesn't resemble hex code.  I had tried
using a regular expression like this:

var reDigit =3D /\d+$/;
if(domLocation.elements[i].value !=3D reDigit){do this thing}

My question is this.  Can someone tell me the correct regular expression
to find out if the data in a form element is an int.  And how to format
the "if" statement for that.  I think I have tied everything but
checking for each alpha char.  Thanks

Garrett



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