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I was just about to follow up with that pairwise option. Glad I saw your update before I did. But I still wanted to mention that I find it necessary to write it something like this:
...lest I get a pair of warnings that $a and $b are used only once. List::MoreUtils provides several ways to do it. This isn't quite as elegant, but still seemed neat to me.
Update: I've submitted a patch and a corresponding test targeting the 'used only once' warnings. Dave In reply to Re^2: how to print two array with new line at end of each second array element, using a single print statement?
by davido
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