From: Thufir <hawat.thufir@...>
Date: 2008-02-16T07:30:05+09:00
Subject: Re: Change a data structure

On Fri, 25 Jan 2008 00:24:57 +0900, yermej wrote:


> This might help, though some would say it's better just to avoid inject
> entirely:
> 
> timing_given.each do |test_type, test_data|
>   timing_given[test_type] =
>     test_data.inject(Hash.new {|h, k| h[k] = []}) do |new_hash,
> old_hash|
>       old_hash.each do |data_field, data_value|
>         new_hash[data_field] << data_value
>       end
>       new_hash
>     end
> end


Why would this be preferable to using a db for storing data?  I don't 
understand the prevalence of Hash.


-Thufir