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All the Perl that's Practical to Extract and Report
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Is that production code? (Score:1)
''
0
'0'
reference to an empty hash, array, or any of the above
for $foo and $bar are invalid and assigning over them is safe
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Re:Is that production code? (Score:1)
Re:Is that production code? (Score:2)
Why should any of those be valid apart from 0.
If you can't see the type and usage of a variable, the solution is to name it correctly.
It should also be clear if 0 is acceptable or not in the code, that would be the only comment possibly needed.
@JAPH = qw(Hacker Perl Another Just);
print reverse @JAPH;