Ever wanted to do: 
my @hash{@keys} = @values;

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but of course were stopped by the fact that that's a syntax error? So you resort to either 
my %hash; @hash{@keys} = @values;

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or 
my %hash = map { $keys[$_] => $values[$_] } 0..$#keys;

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and that just didn't seem clean? Well, here's another idiom that borders on cool or wacky weird, depending on where you're from!
@$_{@keys} = @values for \my %hash;

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In reply to Declaring and initializing a hash with a list of keys and a list of values by merlyn

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