Re^2: Get AoH values into array

This may be a newbish question, but according to the map perldoc...

    %hash = map { getkey($_) => $_ } @array;

is just a funny way to write

    %hash = ();
    foreach $_ (@array) {
    $hash{getkey($_)} = $_;
    }
[download]

So doesn't map still solve the problem by using a loop? And wouldn't all the inefficiencies of using a loop directly be carried over by using map?

Honest questions, I'm genuinely curious.

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Re^3: Get AoH values into array by FunkyMonk (Bishop) on Sep 06, 2007 at 18:39 UTC
Unless you want a recursive solution, there will be a loop, either explicity with for, while etc, or implicitly with map, grep etc. Some people (but not me) might prefer something like: `my @husbands = husbands( @AoH ); sub husbands { my $this = shift; return ( $this->{husband}, husbands( @_ ) ) if @_; return $this->{husband}; }` [download] Look Ma, no loops!	[reply] [d/l] [select]