>>>>> ""lists" == "lists user" <[EMAIL PROTECTED]> writes:
"lists> When destructing a variable,one can say `$var = ''` or `$var =
"lists> undef`,which way is good?
"lists> like two cases follow,
"lists> sub DESTROY
"lists> {
"lists> my $self = shift;
"lists> $self->{array} = undef;
"lists> }
"lists> or
"lists> sub DESTROY
"lists> {
"lists> my $self = shift;
"lists> $self->{array} = '';
"lists> }
Neither of those. In DESTROY, your object is about to die anyway, so any
items contained in the hashref of your object will also lose one reference,
making your attempt to change that completely moot.
Did you see somewhere that you need to do your own hash element clearing (like
a bad website or book)? Or is this leftover inappropriate knowledge from
other languages?
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