Swift, Functional Programming.
collections of data with less code and in a more expressive way. Example Using `map`, `filter`, and `reduce`: let numbers = [1, 2, 3, 4, 5] let squaredNumbers = numbers.map { $0 * $0 } // [1, 4, 9, 16, 25] let evenNumbers = squaredNumbers.filter { $0 % 2 == 0 } // [4, 16] let sumOfEvenNumbers =