Re: no grep match returns undefined?

grep returns an array of matched elements. So if there are no matches, then the first array element is undefined. A better way would be



my @vndr_keys = grep { $args->{desc} =~ m/$_/i } keys %vendors;

if (@vndr_keys) {
  #do something
} else {
  #do something else
}
[download]

-Mark

Comment on Re: no grep match returns undefined? Download Code

Replies are listed 'Best First'.
Re: Re: no grep match returns undefined? by davorg (Chancellor) on Sep 05, 2002 at 16:22 UTC
grep returns an array of matched elements Actually it returns a list of matched elements. The difference can be important. -- <http://www.dave.org.uk> "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply]