Swift: Array Extension

ArrayExtension.swift

/* Compare two array has the same value */

// firstArray = ['A', 'B', 'C', 'A']
// secondArray = ['A', 'B', 'C', 'A']
// firstArray.isDuplicateOf(secondArray)

extension Array where Element: Comparable {
    func isDuplicateOf(as other: [Element]) -> Bool {
        return self.count == other.count && self.sorted() == other.sorted()
    }
}