From: Siep Korteling <s.korteling@...>
Date: 2008-05-14T00:43:52+09:00
Subject: Re: hash merge

Tim Wolak wrote:
> Thanks for the post guys. My problem is this:
> 
> a = { 54540 => 10345, 55550 => 30555 }
> b = { 54540 => 11000, 55550 => 40556 }
> 
> I need to merge these into one hash where the keys are the same so that 
> is fine, I need to subtract the values and the difference will be the 
> new key.
Are you sure? I'll assume you meant value
> 
> So I'm not sure this line is doing that I think it should do, I'm pretty 
> sure I may have the wrong syntax.
> 
> @sktyfuta.merge(@sktyfutb) { |key, old_value, new_value| old_value - 
> new_value }
> 
> Tim

The syntax is fine,Yossef Mendelssohn actually used your class. See his 
example. How do you expect it to behave?

regards,

Siep
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