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Re: Is there a simple syntax to logically slice a hash?

by Athanasius (Bishop)
on Feb 21, 2013 at 15:38 UTC ( #1019965=note: print w/replies, xml ) Need Help??

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  1. or download this
    #! perl
    use strict;
    ...
    my %h1 = (catastrophe => 1, cataclysm => 2, dogma => 3);
    my %h2 = map { $_ => $h1{$_} } grep { /^cat/ } keys %h1;
    dd %h2;
    
  2. or download this
     1:33 >perl 542_SoPW.pl
    ("catastrophe", 1, "cataclysm", 2)
    
     1:37 >
    

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