Ruby Array : Comparison
Lets start with two arrays
array1 = ["x", "y", "z"] array2 = ["w", "x", "y"]Tip 1: Add two arrays and remove duplicates
array1 | array2 => ["x", "y", "z", "w"]Tip 2: Keeping common elements and remove duplicates
array1 & array2 => ["x", "y"]Tip 3 : Keeping unique elements
array1 - array2 => ["z"]
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