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Re:Larry Wall has approved renaming Perl 6 to Raku by b2gills on Wednesday October 16, 2019 @03:08AM (#21267836)
Note that:

    while (<>) { ($h{$_}++ == 1) && push (@outputarray, $_); };
Would be written as the following in Raku:

    my @output-array = lines.unique;
Re:Larry Wall has approved renaming Perl 6 to Raku by lizmat on Monday October 21, 2019 @09:28AM (#21311986)
Actually, since the Perl 5 example doesn't chomp (remove newlines), the Raku version would need to be:

    my @output-array = lines(:!chomp).unique;
where the `:!chomp` is a named parameter representing a `False` value for the named parameter `chomp`. AKA, `chomp => False`.