sub unique {
    my %seen;
    $seen{$_}++ for @_;
    keys %seen;
}

my @unique_values = unique( @some_values );

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While it's not the best or most efficient way, it is the standard way to extract the unique elements from an array. Do you really want N "uninitialized variable" warnings where N is the number of unique elements in your array?

And, that's just one common usage.

Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.

In reply to Re^3: I've been bit in the neck by open() by dragonchild
in thread I've been bit in the neck by open() by blazar

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