http://www.perlmonks.org?node_id=1037969


in reply to passing return value of a function to print

As an alternative to farang's (++) method: Declare the sub first, then you don't need the parens: 
perl -e ' sub f {"123\n"}; print f'
# prints '123'

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You could also pre-declare a stub, use it, then add the code for the sub: 
perl -e 'sub f;print f; sub f {"123\n"}'

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