Re^2: Use of uninitialized value in hash element at

sub get_attribute {
    my ( $self, $attribute ) = @_;
    
    return exists $self->{ATTRIBUTES}
        ? $self->{ATTRIBUTES}{$attribute}
        : undef;
}
[download]

will do the same, but if you don't mind to create $self->{ATTRIBUTES}, it maybe even shorter:

sub get_attribute {
    my ( $self, $attribute ) = @_;

    return $self->{ATTRIBUTES}{$attribute};
}
[download]

Comment on Re^2: Use of uninitialized value in hash element at Select or Download Code

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Re^3: Use of uninitialized value in hash element at by Anonymous Monk on Apr 27, 2011 at 17:12 UTC
Hi, thanks for responses... I've tried both solutions and I still get warnings : `Use of uninitialized value in hash element at ....` [download] line with return statement... Is there any chance to get rid of those warnings ? Thanks in advance, regards, Rob.	[reply] [d/l]
Re^4: Use of uninitialized value in hash element at by zwon (Abbot) on Apr 27, 2011 at 17:21 UTC
Sure. This warning is actually means that `$attribute` is not defined. You probably calling this method like: `$self->get_attribute` [download] somewhere	[reply] [d/l] [select]
Re^5: Use of uninitialized value in hash element at by Anonymous Monk on Apr 27, 2011 at 18:09 UTC
Hi, thanks for response. I know what is causing this, but I'd just like to return undef if it doesn't exists and value if it exists. Why can't I do that without getting this warning ? It's not clear to me, why I can't "just ask politely" if it exists and return undef if it doesn't without warning... Thanks in advance, regards, Bulek.	[reply]
Re^6: Use of uninitialized value in hash element at by zwon (Abbot) on Apr 28, 2011 at 12:44 UTC