Given a hash like this, and using warnings:

my %hash = ( a => undef, b => 'foo', c => undef );

I naturally get two Use of uninitialized value warnings if I do:

print "$_ => $hash{$_}\n" for keys %hash;

I understand that. How come, then, the following generates no warnings at all?:

print "$hash{$_} <= $_\n" for keys %hash;

TIA

dave

In reply to "Use of uninitialized value" question by Not_a_Number

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