I read through grep, but the doc doesnt seem to indicate whether or not a situation where grep matches nothing results as undef or an emptry string. My code:

my $vndr_key = (grep { $args->{desc} =~ m/$_/i } keys %vendors)[0];

if ($vndr_key ne '') {
  #do something
} else {
  #do something else
}

[download]

I'm getting an error Use of uninitialized value in string ne when the grep finds nothing. Would a if (!$vndr_key) be a better fit? And if so, I'd still like to understand just what grep is returning.

Thanks -c

In reply to no grep match returns undefined? by c

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