Question

I have this code in Perl:

sub f {     return [1,2,3] }  print f; 

The function f returns reference to array, how can I convert returned value to array without additional variable, like here?

sub f {     return [1,2,3] }  $a = f; print @$a; 

Answer 1

Are you just trying to do this?

print @{ f() }; 

You can dereference anything that returns a reference. It doesn’t have to be a variable. It can even be a lot of code:

print @{ @a = grep { $_ % 2 } 0 .. 10; \@a }; 

Perl v5.20 adds an experimental post dereference:

print f()->@*