From: 7stud -- <bbxx789_05ss@...>
Date: 2009-09-11T10:16:37+09:00
Subject: Re: populating a hash from an array using inject

7stud -- wrote:
> h = Hash.new([])
> 
> h["A"] =  h["A"] << 10  #==>[10]
> 
> h["B"] = h["B"] << 20   #==>[20]
> 
> Look what happens:
> 
> 
> p h
> 
> {"A"=>[10, 20], "B"=>[10, 20]}
> 

Yep, ruby hands you a reference to the same array over and over 
again...when you try to access non-existent keys.
-- 
Posted via http://www.ruby-forum.com/.