$ perl -E 'say []'
ARRAY(0x7fd8278040b0)

##</code><code>##

$ perl -E 'say for [], {}, \"", sub {}'
ARRAY(0x7ff6d60040b0)
HASH(0x7ff6d602bf70)
SCALAR(0x7ff6d602c948)
CODE(0x7ff6d602c960)