From: Simon Strandgaard <neoneye@...>
Date: 2005-10-17T18:23:28+09:00
Subject: Re: Convenient way to get many hash elements at once.

On 10/17/05, Ron M <rm_rails@cheapcomplexdevices.com> wrote:
> If I have a hash table with a bunch of fields; and I want to
> extract a subset of them, kinda like "@a_hashtable{'a','c'}"
> in perl, is there a nice way of doing so?
> I was hoping something like this would work...
>
>   h={'first name'=>'John', 'last name'=>'Doe', 'birthday'=>'1970-01-01', 'height'=>'5 foot'}
>
>   h['first name','last name']  # hoping for ['John','Doe'] as a result.
>

h.values_at('first name', 'last name')
#=> ["John", "Doe"]

--
Simon Strandgaard