This was suggested by mothra's interesting reply to my recent post. It's possible to cut out the duplicates from an array with my %uniq; @uniq{@arr} = @arr; @arr = keys %uniq; (thanks to davorg) so long as the array elements are fairly well-behaved critters. But what if they're something odd like hash assignments? What's the slickest way to get rid of duplicate array elements that works whatever elements are in the array?

This one's a bit too rich for my blood - I don't see how to do it without looping through the array, and even then I wouldn't know how to be sure it wouldn't break - but I would love to see how the higher clerics do it.

§ George Sherston

In reply to GOLF challenge: destroy dup array elements by George_Sherston

Title:
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, details, 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, summary, 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.