From: Brian Candler <b.candler@...>
Date: 2010-02-02T04:15:58+09:00
Subject: Re: Adding keys to a hash in a loop

Jack Bauer wrote:
> Hi all,
> 
> I'm trying to essentially accomplish this behavior:
> 
> output.each do |item|
>   output_hash << {item.name => []}
> end

Apart from the other suggestions, you can do:

output.each do |item|
  output_hash.merge!(item.name => [])
end
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