Re: compare two strings and return only he unique values.

Yet another (short) way:

my ( $str1, $str2 )  = ( 'ABCDE', 'BCDEO' );

my %count;
$count{$_}++ for split //, $str1.$str2;

print grep $count{$_} == 1, keys %count;
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Comment on Re: compare two strings and return only he unique values. Download Code

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Re^2: compare two strings and return only he unique values. by Kenosis (Priest) on Feb 03, 2013 at 21:17 UTC
Won't show "A" when: `my ( $str1, $str2 ) = ( 'ABCDEA', 'BCDEO' );` [download]	[reply] [d/l]
Re^3: compare two strings and return only he unique values. by Not_a_Number (Prior) on Feb 03, 2013 at 22:40 UTC
Yeah, I know. But the OP said: I am trying to display unique values from two strings So is 'A', in your dataset, unique or not? Depends upon a better spec, I suppose... Update: smls (below) already pointed this out;	[reply]
Re^4: compare two strings and return only he unique values. by Kenosis (Priest) on Feb 03, 2013 at 23:34 UTC
Your solution is elegant and works beautifully with "ABCDE", "BCDEO" -- the OP's two initial strings. But the OP later included "ABCDE", "BBBBB" as options, clearly indicating the possibility of character reptition. Quite agree that a clearer spec would help...	[reply]