What type of data is returned when performing an array slice operation?

In Swift, the array slice operation returns a type ArraySlice<Element>. This slice is a view of the original array, representing a sequence of elements but not copying them entirely. If needed, you can convert ArraySlice back to Array for convenience:

let array = [1, 2, 3, 4, 5]
let slice = array[1...3] // ArraySlice<Int>
let newArray = Array(slice) // [2, 3, 4]

ArraySlice maintains references to the original array, allowing efficient work with subsets of data without unnecessary copying.