in reply to Re^2: Strange grep construct
in thread 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