First unique char
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sub first-unique-char(Str $str) {
my @str = $str.comb;
do given @str.grep(* ne " ").Bag -> %chars {
@str.first: { %chars{$_} == 1 }, :k
}
}
say first-unique-char "Perl Weekly Challenge";
say first-unique-char "Long Live Perl"
Raku
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