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Re^2: sort of misunderstanding of sortby LanX (Saint) |
on Mar 21, 2023 at 11:51 UTC ( [id://11151096]=note: print w/replies, xml ) | Need Help?? |
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I assume you want the cross-product
you can just let $list2 default to $list1 if undef to have a self-operation with only one list. $list2 //= $list1
Cheers Rolf
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