From: Joel Pearson <lists@...>
Date: 2013-03-13T04:06:00+09:00
Subject: Re: Access values for JSON.parse response

There's probably a simpler way to lay this out, but this worked for me:

def recursive_find( key, object )
  case object
  when Array
    object.each do |el|
      if el.is_a?(Hash) || v.is_a?(Array)
        res = recursive_find( key, el )
        return res if res
      end
    end
  when Hash
    return object[key] if object.has_key?( key )
    object.each do |k,v|
      if v.is_a?(Hash) || v.is_a?(Array)
        res = recursive_find( key, v )
        return res if res
      end
    end
  end
  nil
end

irb(main):022:0> recursive_find 'duration', h
=> 30

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