Re^4: define a hash-value, using hash-ref and a list of keys

[janssene]

Hi Rolf, this is what I needed... having an older perl-version,I used for my $key (@keys) { $href =  $href->{$key} = {} unless defined $href->{$key};} is this notation {} having a specific usage or name ? Anyway, many thanks for the suggestion !!!

[LanX]

Your code won't work as expected, because of low precedence of unless . Either use parentheses or a ternary operator.

Better have a look at Re^2: define a hash-value, using hash-ref and a list of keys if Perl < 5.10 is an issue.

{} is an anonymous hash (-ref).