TypeError: cannot convert Set into Array : As Set « Array « Ruby

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Ruby » Array » As Set   TypeError: cannot convert Set into Array array = [1,2,3] set = [3,4,5].to_set set & array                 # => #<Set: {3}> array & set   Related examples in the same category 1.  Ruby can do several set operations on arrays 2.  Difference (-) creates a new array, removing elements that appear in both arrays 3.  Union (|) joins two arrays together, removing duplicates: 4.  Computing Set Operations on Arrays: Union 5.  Computing Set Operations on Arrays: Intersection 6.  Computing Set Operations on Arrays: Difference 7.  Set operation based on array 8.  Set operation on array constant 9.  Minus from one array 10.  Exclude a list of natrual number

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