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1dolinski/array.rb

Created April 15, 2013 13:00
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array.rb
w = [[2],[1],[3]]
#=> [[2], [1], [3]]
x = w.dup
#=> [[2], [1], [3]]
x.each do |a|
a << 1
end
[12] pry(main)> x
#=> [[2, 1], [1, 1], [3, 1]]
[13] pry(main)> w
#=> [[2, 1], [1, 1], [3, 1]]
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Why is this manipulating the original object?

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