open(FH, "file"); @array = <FH>; %seen = (); @uniq = gre

how to search a unique pattern in a file by using perl hash
map function ??? plz answer me

Question Posted / vinod mishra

Answer Posted / vinod mishra

open(FH, "file");
@array = <FH>;
%seen = ();
@uniq = grep{!seen{$_}++} @array;

Is This Answer Correct ?

1 Yes

6 No

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