Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?
 
PerlMonks  

How do I print the values of a hash, sorted by the hash keys?

( #562925=categorized question: print w/ replies, xml ) Need Help??
Contributed by kwaping on Jul 21, 2006 at 19:38 UTC
Q&A  > sorting


Answer: How do I print the values of a hash, sorted by the hash keys?
contributed by Russ

There's more than one way to do it.

Here's the obvious way:

foreach my $key ( sort keys %data ) { print $data{$key}; }

Here it is, using a map within a single print call:

print map { $data{$_} } sort keys %data;

Here's a way using a hash slice:

foreach my $val ( @data{ sort keys %data } ) { print $val; }

Even the slice can be printed in a single print call:

print @data{ sort keys %data };

Of course, you'll want to set up the variables $, and $\ appropriately...

Answer: How do I print the values of a hash, sorted by the hash keys?
contributed by Tux

A rather obscure alternative could be

use Data::Dumper; $Data::Dumper::Sortkeys = 1; print Dumper \%hash;

Please (register and) log in if you wish to add an answer



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • 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?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others chanting in the Monastery: (6)
    As of 2015-07-28 06:59 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (252 votes), past polls