# List::MoreUtils::uniq
sub LM_uniq {
  my %h;
  map { $h{$_}++ == 0 ? $_ : () } @_;
}

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This seems like a strange construction (and yet, as you point out, it's what's in the List::MoreUtils source). Surely $h{$_}++ == 0 is the same as ! $h{$_}++ in this setting? I thought the main point of using the List::MoreUtils uniq was to avoid edge cases, but this seems to do nothing but replace a grep with an essentially equivalent map. (In particular, it doesn't do anything to avoid stringification of objects.)

In reply to Re^4: Remove Duplicates from Array by JadeNB
in thread Remove Duplicates from Array by jpk236

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