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| PerlMonks |
Re^3: How to differentiate an empty array from an unitialized one?by haukex (Archbishop) |
| on Jul 09, 2018 at 09:13 UTC ( [id://1218149]=note: print w/replies, xml ) | Need Help?? |
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it would be incorrect for Perl to consider an uninitialized value to be an empty string That is quite incorrect. Perl's undef (the default value for uninitialized scalars) evaluates to an empty string (or zero in numeric context). If warnings are enabled, this will usually warn, but only to indicate that the programmer may have made a mistake, not because it's inherently wrong.
In Section
Seekers of Perl Wisdom
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