Re: Another posible initializer

[dvergin]

Actually,

my %p;
@p{'eyes', 'hair', 'etc'} = ();

is a common idiom for using a hash slice to load a hash with keys and undef values.

[Fletch]

You're quite right. I was thinking more of:

my %p;
@p{ qw( a b c ) } = (1)x3;

where you're initializing to a given value (like 1 or "on") rather than undef.

[dvergin]

Yes indeedy. So then, to complete this exercise and return to your very legitimate concern above about maintaining this code if the number of arguments changes, we can use:

   my %p;
   my @keys = qw( a b c );
   @p{@keys} = (1) x @keys;

and slice assignment will take care of itself if we change the key list.