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Perl::Critic says don't modify $_ in list functions and other things

by Lady_Aleena (Curate)
on Jul 09, 2020 at 01:29 UTC ( #11119056=perlquestion: print w/replies, xml ) Need Help??

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  1. or download this
      my @list       = map { chomp($_); $_ } <$fh>;
      my @uc_list    = map { chomp $_; [uc $_] } <$lc_fh>; # used only onc
    +e
      my @split_list = map { chomp $_; [ split(/\|/, $_) ] } <$piped_fh>; 
    +# used only once
    
  2. or download this
      my @array = map {
        $_ =~ s/^[\*\+-] (.+)/$1/;
        some_sub($_, $opt);
      } @another_array;
    
  3. or download this
      my @ids = map {
        $_ =~ s/<.+?>//g;
    ...
        $_ =~ s/[^\w:.\-]//g;
        $_;
      } grep {defined($_)} @base;
    
  4. or download this
    sub fancy_map {
      my ($opt, $list) = @_;
    ...
        }
      } @{$list};
    }
    
  5. or download this
      if ($raw_value =~ /\*/) {    # multiplication
        $total_value = eval($raw_value);
    ...
        $base_value = eval($raw_value);
        ($total_value, $amount) = split(/\//, $raw_value);
      }
    

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