Consider the following: 
$ perl -e '%x=(1 => 2); if(@x{1, 2}) { print "yes\n" } else { print "n
+o\n" }'
no

[download]
$ perl -e '%x=(1 => 2); if(@{[@x{1, 2}]}) { print "yes\n" } else { pri
+nt "no\n" }'
yes

[download]
Why should these two statements not both print "yes", since both produce a nonempty list?

In reply to nonempty false list by Anonymous Monk

Title:
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