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Re: Look at the next value of hash when sorting by values

by choroba (Archbishop)
on Feb 13, 2017 at 17:31 UTC ( #1181905=note: print w/replies, xml ) Need Help??


in reply to Look at the next value of hash when sorting by values

Or just keep the previous value in a variable. I'd understand "sorting by values" as walking the hash keys in the order of the values.
#!/usr/bin/perl use warnings; use strict; use feature qw{ say }; my %color_of = ( apple => 'red', orange => 'orange', grape => 'purple', tomato => 'red', lettuce => 'green', peanut => 'tan', ); my $previous; for my $fruit_or_vegetable ( sort { $color_of{$a} cmp $color_of{$b} } keys %color_of ) { say "$previous before $fruit_or_vegetable" if defined $previous; $previous = $fruit_or_vegetable; }
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

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