From: dblack@...
Date: 2006-08-14T00:47:04+09:00
Subject: Re: How to update nested Hashes?

Hi --

On Mon, 14 Aug 2006, Hammed Malik wrote:

> Given two nested Hashes, is there an easy way to update one with the other?
>
> a = {:top => {:foo => {:a => 1}, :bar => {:b => 2}}}
> b = {:top => {:bar => {:c => 3}}}
>
> what I'd like is
>
> a.nested_update(b) => {:top => {:foo => {:a => 1}, :bar => {:c => 3}}}

You could do something like:

   def a.nested_update(b)
     each_key {|k| self[k].update(b[k])}
   end


David

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