"Lawrence, Rob" wrote:
>
> This is sad....
>
> How do you check to see if a string is empty?
>
> my $stuff
> while($stuff "I don't know)
> {
> print "You must enter a value\n";
> $stuff = <STDIN>;
> }
There's defined and there's empty. You can check for either or both.
my $stuff;
if ($stuff) {
print "stuff was undefined/empty 1\n";
}
if ($stuff eq '') { # error if undefined
print "stuff was empty 2\n";
}
if (not length $stuff) { # error if undefined
print "stuff was empty 3\n";
}
if (not defined $stuff) {
print "stuff was undefined 4\n";
}
--
,-/- __ _ _ $Bill Luebkert ICQ=14439852
(_/ / ) // // DBE Collectibles http://www.wgn.net/~dbe/
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