#!/usr/bin/perl

use strict; # https://perlmonks.org/?node_id=11107249
use warnings;
use List::Util qw(uniq);
use Data::Dump qw(dd pp);

my @test_data = (
    { Tag1 => "1", Tag2 => "a" },
    { Tag1 => "1", Tag2 => "a" },
    { Tag1 => "1", Tag2 => "b" },
    { Tag1 => "1", Tag2 => "c" },
    { Tag1 => "1", Tag2 => "a" },
    { Tag1 => "2", Tag2 => "a" },
    { Tag1 => "2", Tag2 => "d" },
    { Tag1 => "2", Tag2 => "a" },
    { Tag1 => "3"},
    { Tag1 => "sun", Tag2 => "a" },
    { Tag1 => "sun", Tag2 => "a" },
);

my @unique = map eval, uniq map { pp $_ } @test_data;
dd \@unique;

[download]

Outputs: 

[
  { Tag1 => 1, Tag2 => "a" },
  { Tag1 => 1, Tag2 => "b" },
  { Tag1 => 1, Tag2 => "c" },
  { Tag1 => 2, Tag2 => "a" },
  { Tag1 => 2, Tag2 => "d" },
  { Tag1 => 3 },
  { Tag1 => "sun", Tag2 => "a" },
]

[download]

In reply to Re: Eliminate exact duplicates from array of hashes by tybalt89
in thread Eliminate exact duplicates from array of hashes by Anonymous Monk

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