Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
To common methods.

Group and peek at previous:

my @country_states; for (@logfiles) { my $country_state = $_; # Avoid clobbering @logfiles $country_state =~ s/.txt//; $country_state =~ s/_/ /g; push @country_states, $country_state; } @country_states = sort @country_states; my $last_country; for my $country_state (@country_states) { my ($country, $state) = split(/-/, $country_state, 2); if (!defined($last_country) || $last_country ne $country) { $last_country = $country; print(uc($country), "\n"); } print($state, "\n"); }

Group into a multi-dimensional structure:

my %states_by_country; for (@logfiles) { my $country_state = $_; # Avoid clobbering @logfiles $country_state =~ s/.txt//; $country_state =~ s/_/ /g; my ($country, $state) = split(/-/, $country_state, 2); push @{ $states_by_country{$country} }, $state; } for my $country (sort keys %states_by_country) { print(uc($country), "\n"); my $states = $states_by_country{$country}; for my $state (sort @$states) { print($state, "\n"); } }

In reply to Re: Problem with push() Function by ikegami
in thread Problem with push() Function by virtualweb

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others perusing the Monastery: (5)
    As of 2018-07-21 08:05 GMT
    Find Nodes?
      Voting Booth?
      It has been suggested to rename Perl 6 in order to boost its marketing potential. Which name would you prefer?

      Results (445 votes). Check out past polls.