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| Syntactic Confectionery Delight | |
| PerlMonks |
Re: How can I find the union/difference/intersection of two arrays?by Dev Null (Acolyte) |
| on Jun 07, 2017 at 15:56 UTC ( [id://1192290]=note: print w/replies, xml ) | Need Help?? |
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This is inefficient, but I use it for intersection when I know I'm guaranteed small list sizes, and it's more valuable / pleasing to me to have a one-line solution: my @isect = map { my $b = $_; grep { $_ eq $b } @a } @b;
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