CodingBat array_countDupes

array_countDupes

array_countDupes - given two int arrays return the number of duplicate values found between the two arrays. Precondition: Assume no duplicates in each individual array.

array_countDupes([], []) → 0
array_countDupes([1, 2, 3, 4, 5], [1, 2, 3, 5]) → 4
array_countDupes([], [1, 3]) → 0

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