in reply to Perl: last evaluated value as a returned value for a subroutine. See inside
EDIT: now I get it, the sub returns the evaluation from the unless-condition in the first line.
... WTF ...
You like obfuscation, don't you?
> are there any conditions when Perl would NOT print "some string" in last two lines of code
sure if you set $R to anything false ( EDIT:... it will start from new, otherwise it will print the new value.)
if you wanna avoid that anyone ever unintentionally changes $R, then put the whole closure construct into braces and $R is out of scope for any other code.
{ my $R; sub mySub { unless ($R) { print "CONDITION WORKS\n"; $R = 'some string'; } } }
Cheers Rolf
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Seekers of Perl Wisdom