From: felix chang <funal.zhang@...>
Date: 2011-03-24T07:37:58+09:00
Subject: iteration question

Dear all:

This is my code:

data = Array.new(5,[])
0.upto(4) do |i|
  data[i].push(i)
end

p data


the output is :
[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0,
1, 2, 3, 4]]

I am so confused why the output is not that showed below
[[0],[1],[2],[3],[4]]

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