in reply to map it back jack

%myhash = map{ $v = $_; $v =~ s/_/ /g; $_,$v } @elements;

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Re: Re: map it back jack
by redcloud (Parson) on Dec 16, 2000 at 02:59 UTC
    Seems like you can save a couple of keystrokes if you're not particular about what ends up in $v, since s/// operates on $_: 

    my $v;
my %myhash = map { $v = $_; s/_/ /g; $v, $_ } @elements;

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    Is there a way to pare it down more? (The Monastery needs a golf course!)

    Update: As I0 points out, this also modifies @elements, which may not be what you want.

    johannz's for construct is looking the most elegant to me now.

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      In the quest for Shorter and More Efficient: 
      my %myhash = map { $v=$_; y/_/ /; $_,$v } @elements;

      [download]
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[d/l]
      You may not be particular about what ends up in $v, but if you're particular about what ends up in @elements you won't want to modify $_ ($v=$_)=~tr/_/ /;$_,$v
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