On Oct 2, [EMAIL PROTECTED] said:
>To recap, I want to test if a var is undefined or ''.
>
> if(undefined $x && length($x)==0)
There IS no 'undefined' function in Perl, and you don't want to use &&,
you'd want to use ||, since the empty string "" IS defined.
if (not defined($x) or length($x) == 0) {
# it's undef OR ""
}
Or, do it the other way:
if (defined $x and length $x) {
# it's NOT undef, and it's NOT ""
}
--
Jeff "japhy" Pinyan [EMAIL PROTECTED] http://www.pobox.com/~japhy/
RPI Acacia brother #734 http://www.perlmonks.org/ http://www.cpan.org/
<stu> what does y/// stand for? <tenderpuss> why, yansliterate of course.
[ I'm looking for programming work. If you like my work, let me know. ]
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
