Initializing hashes or arrays that way doesn’t buy anything. The scalar initialization to an empty string can actually matter if you want to avoid a certain kind of warning– 

moo@cow[91]~>perl -we 'my $s; $s =~ /./'
Use of uninitialized value $s in pattern match (m//) at -e line 1.
moo@cow[92]~>perl -we 'my $s = ""; $s =~ /./'
moo@cow[93]~>

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I prefer no warnings "uninitialized"; for this general case but sometimes you really do want to know if the scalar has an assignment, even the empty string, or not.

In reply to Re: need a clearer understanding by Your Mother
in thread need a clearer understanding by DanielM0412

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