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-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Monday, June 04, 2001 2:30 PM
To: Hasanuddin Tamir
Cc: [EMAIL PROTECTED]
Subject: Re: testing null strings for form field values
honestly, i havent even covered use::strict in my
Randal is of course right. I apologize for my extremely confusing
and idiom riddled post.
"Randal L. Schwartz" wrote:
> > "David" == David Labatte <[EMAIL PROTECTED]> writes:
>
> David> The why though is most likely that: undef ne ''
>
> That's not true. undef eq ''.
>
Sorry I meant that
On Tue, 5 Jun 2001, Hasanuddin Tamir <[EMAIL PROTECTED]> wrote,
> Date: Tue, 5 Jun 2001 01:22:59 +0700 (JAVT)
> Take a look at these one-liner examples. The string "(nothing)" indicates
> that no output is printed.
>
> 1% perl -le '$x; print 1 if $x ne ""'
> (nothing)
>
> 2% perl -le '$x = und
honestly, i havent even covered use::strict in my readings yet. i am brand
spanking new to the language, however i am indeed running perl with -w.
-cjm
On Tue, 5 Jun 2001, Hasanuddin Tamir wrote:
> On Mon, 4 Jun 2001, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote,
>
> > if ( $formdata{view_name
On Mon, 4 Jun 2001, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote,
> if ( $formdata{view_name} ne "" ) {
> $view = $formdata{view_name};
> $viewtag = "1";
> }
>
> is there a special method for testing against a null string for a form
> field's value? i am using the above data, but it seems to a
> "David" == David Labatte <[EMAIL PROTECTED]> writes:
David> The why though is most likely that: undef ne ''
That's not true. undef eq ''.
David> What I usually do if I have code that expects an empty string
David> instead of an undef is append an empty string onto it when I read
David> t
Yes, that very well might return 1. If you are getting the form
variable data from cgi.pm then a blank form field will appear
as an undefined value in perl, not an empty string.
So the previous posters response about testing for the true'ness of
the form value will work always and is how I usu
[EMAIL PROTECTED] wrote:
>
> if ( $formdata{view_name} ne "" ) {
> $view = $formdata{view_name};
> $viewtag = "1";
> }
>
> is there a special method for testing against a null string for a form
> field's value? i am using the above data, but it seems to always return
exists() will t
On Mon, 4 Jun 2001 [EMAIL PROTECTED] wrote:
> if ( $formdata{view_name} ne "" ) {
> $view = $formdata{view_name};
> $viewtag = "1";
> }
>
> is there a special method for testing against a null string for a form
> field's value? i am using the above data, but it seems to always return
> with a
if ( $formdata{view_name} ne "" ) {
$view = $formdata{view_name};
$viewtag = "1";
}
is there a special method for testing against a null string for a form
field's value? i am using the above data, but it seems to always return
with a value of "1" making me think that something is incorrect in
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