From: Robert Dober Date: 2011-04-22T18:07:07+09:00 Subject: Re: Can I append hash to hashes? On Fri, Apr 22, 2011 at 10:13 AM, Siratinee Sukachai wrote: > Actually, I need to do like in array which I can use << to assign more > value into array. Anyways can I do that in hash? Sure there are two ways, the destructive one, in which the receiver is modified with #update >> h={:a=>42} => {:a=>42} >> h.update(:b => 43) => {:b=>43, :a=>42} >> h => {:b=>43, :a=>42} >> or the constructive, in which the receiver is not modified, with #merge >> h={:a=>42} => {:a=>42} >> h.merge(:b => 43) => {:b=>43, :a=>42} >> h => {:a=>42} Be aware of the fact, that in case of conflicting keys the values of the argument are used, this can be handled by the block form of #update and #merge, as described here http://www.rubydoc.info/stdlib/core/1.9.2/Hash HTH Robert > -- > Posted via http://www.ruby-forum.com/. > > -- The 1,000,000th fibonacci number contains '42' 2039 times; that is almost 30 occurrences more than expected (208988 digits). N.B. The 42nd fibonacci number does not contain '1000000' that is almost the expected 3.0e-06 times.