Question

I have an object I defined with a method, childNodes(), which returns an array. When I do something like:

my @arr = obj->childNodes()

I can clearly see that it can properly return an array.

My problem is that when I try to use this method to set the attribute of another class object, Perl decides I just want the length of childNodes() rather than the full array. This is not at all what I want and ruins everything. The code I m using for this is:

$self->{ _arr } = obj->childNodes()

How can I make this set $self->{ _arr } to an array instead of just a scalar number?

提前感谢!

Answer 1

当你评估一个阵列时,它会恢复阵列的长度。

你们想提及阵列:

$self->{ _arr } = [ obj->childNodes() ];

见perldoc perlref。

友情链接