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How to gurantee grep return 1 or 0 in Perl

Posted on 2011-03-25
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Last Modified: 2012-08-13
Hi,
Is there a chance for variable $myoption not to have any value?

my $myoption = grep(/somename/, @myarray);


If there is, then how can I make it 0 in a smart and safe way. Otherwise it will be 1 I guess.

Thanks,
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Question by:Tolgar
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wilcoxon earned 2000 total points
ID: 35219226
$myoption will always be 0 or 1 or more.  What you are saying is:

my $myoption = scalar(grep(/somename/, @myarray));

so $myoption will always contain the number of items that matched the grep.  If nothing matched, it will be 0.  Otherwise, it will be a count of how many things from @myarray matches somename.
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