Here’s one approach: convert each inner array into a single string, and store it in a hash for future lookup:

use strict;
use warnings;
use Data::Dump;

my @MyArrayOfArray =
(
    [ "hello", "day",         "sun and fun" ],
    [  2,      "okay",        "may"         ],
    [ "hello", "day",         "sun and fun" ],
    [  2,      "okay",        "may"         ],
    [ "hello", "sun and fun", "day"         ],
    [  2,      "okay",        "may"         ],
);

my (%hash, @AoA2);

for (@MyArrayOfArray)
{
    my $key = join '', @$_;
    push @AoA2, $_ unless exists $hash{ $key };
    ++$hash{ $key };
}

dd \@AoA2;

[download]

Output:

18:32 >perl 1924_SoPW.pl
[
  ["hello", "day", "sun and fun"],
  [2, "okay", "may"],
  ["hello", "sun and fun", "day"],
]

18:32 >

[download]

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: Remove Array Duplicates from Array of Arrays by Athanasius
in thread Remove Array Duplicates from Array of Arrays by Anonymous Monk

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.