From: Stefano Mioli <stefano.mioli@...>
Date: 2011-07-16T03:50:46+09:00
Subject: Re: Comparing hashes based on their keys

On 7/15/11 7:31 PM, Josh Cheek wrote:

> Looks like you've probably got a bug. You explicitly return in your code,
> causing it to stop evaluating after the first hash:

[snip]

Very true.
This should work better. It still returns explicitly, but only if 
compare() itself returns false.

def compare(hash1, hash2)
  args = [hash1, hash2]

  return true if args.all? {|h| h.nil?}
  return false if args.one? {|h| h.nil?}

  hash1.each_key do |k|
    values = [hash1[k], hash2[k]]

    if values.all? {|h| h.is_a?(Hash)}
      return false unless compare(*values)
    else
      return false if values.one? {|value| value.nil? }
    end
  end

  true
end


Thank you so much.

-- 
Stefano Mioli