Re^3: Strange grep construct

I have trouble seeing a justification for this degree of golfing,

Perl golf is the art of using as few characters as possible so this doesn't really qualify.

With unnecessary characters removed:


my@i=grep defined,@{{map{lc,$_}@a}}{map{lc}@b};
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Re^4: Strange grep construct by LanX (Saint) on Apr 12, 2019 at 22:38 UTC
> > this degree of golfing Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery FootballPerl is like chess, only without the dice}	[reply]