I want to check if a value is inside a set of predefined values.

I would use grep. 

#!/usr/bin/perl -w
use strict;

my @fruits = qw(banana plum apple strawberry pea);

if ( grep {/apple/}@fruits ) #perhaps /^apple$/ 
{
   print "apple found!\n";
}
else
{
   print "apple not fouund\n";
}

__END__
apple found!

[download]
There are other ways see: List::Util

In reply to Re: check if a value is in a given set by Marshall
in thread check if a value is in a given set by Ratazong

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