Add new operator for Array : Array Extension « Array « Ruby

Add new operator for Array

class Array

  def ^(other)
    (self | other) - (self & other)


x = [1, 2, 3, 4, 5]
y = [3, 4, 5, 6, 7]
z = x ^ y            # [1, 2, 6, 7]


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