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cheald/gist:d88f37a5b9f0e5cfcc8e Secret

Created July 10, 2015 17:16
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2.2.2 :002 > [1, 2, 3].each_with_object(0).with_index {|num, obj, index| p [num, obj, index] }
[[1, 0], 0, nil]
[[2, 0], 1, nil]
[[3, 0], 2, nil]
=> 0
2.2.2 :003 > [1, 2, 3].each_with_object(0).with_index {|(num, obj), index| p [num, obj, index] }
[1, 0, 0]
[2, 0, 1]
[3, 0, 2]
=> 0
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