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The Something Awful Forums > Discussion > Serious Hardware/Software Crap > The Cavern of COBOL > I still fucking love Perl
 
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Good Sphere
Jun 16, 2018

 My brain still does not want to accept Perl Idioms with &&, II. Not like C-style, or most of what I've seen.

code:
my ($first, $second) = ( 1, 0 );
print "Truth\n" if $first++ && $second++;
print "First: $first\nSecond: $second\n";
__OUTPUT__
First: 2
Second: 1
# Note: Both are evaluated because the first one is
# true.  But "Truth" isn't printed, because only one
# of the two expressions evaluated "true".
[download]
https://www.perlmonks.org/?node_id=301355

So if you have something like:
if( obj.isTrue() && obj ) { ... }

If obj.isTrue() equals true, then it's going to ignore obj after &&. I know this is obvious those familiar with the language, but it's a notable difference that may not be too obvious to those starting out.

* # ¿ Jan 16, 2020 18:00
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The Something Awful Forums > Discussion > Serious Hardware/Software Crap > The Cavern of COBOL > I still fucking love Perl