Why does: 

my @keys = qw{ a b c d };
my %hash = map { $_++ } @keys;

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Produce the following warning: 

Odd number of elements in hash assignemnt.

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while the following does not: 

my %hash;
foreach ( @keys ) {
    $hash{$_}++;
}

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I thought the map method was just a short hand way of using a loop?

Thanks in advance - njcodewarrior

In reply to Hash assignments using map by njcodewarrior

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