Ruby question here, I have N number of arrays and I want renturned the elements of the arrays that are common to all the arrays.
Example:
firstArray = [1,2]
secondArray = [2,3]result should be: 2
In this example I could just firstArray & secondArray, but what about situations where you don't know how many arrays this needs to be performed on?
A solution would be in the form of a method that takes and array of N number of arrays and returns an array of only the common elements.
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