DB<125> $a=["A"] => ["A"] DB<126> $b=["B"] => ["B"] DB<127> @a=($a,"$a",$b,"$b") => (["A"], "ARRAY(0x96cb0f0)", ["B"], "ARRAY(0x96cfd80)") DB<128> @b= uniq @a => (["A"], ["B"]) #### DB<130> $h{$a}=5 => 5 DB<131> %h => ("ARRAY(0x96d1f00)", 5)