Sort on two arrays : Enumerable « Collections « Ruby

1. Ruby
2. Collections
3. Enumerable

Sort on two arrays

class MultiArray
  include Enumerable

  def initialize(*arrays)
    @arrays = arrays
  end

  def each
    @arrays.each { |a| a.each { |x| yield x } }
  end
end

ma = MultiArray.new([1, 2], [3], [4])

ma.sort                                   # => [1, 2, 3, 4]
mixed_type_ma = MultiArray.new([1, 2, 3], ["a", "b", "c"])
mixed_type_ma.sort
# ArgumentError: comparison of Fixnum with String failed

 

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