in reply to forcing array to scalar context in string interpolation?

print @a . "\n";
print "${\(0+@a)}";

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Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail
"Memory, processor, disk in that order on the hardware side. Algorithm, algorithm, algorithm on the code side." - tachyon

In Section Seekers of Perl Wisdom