Exercise: reversed array

Write a function function reversed(nums) that returns a new array with the elements of nums in reverse order. The function does not change the array nums itself.

• reversed([1, 2, 3]) → [3, 2, 1]
• reversed([5]) → [5]
• reversed([]) → []

Constraints: nums holds from 0 to 1000 integers, which may repeat and may be negative; for an empty array the result is an empty array; after the call, nums holds the same elements in the same order.

The tests print results through JSON.stringify: it turns an array into a string without spaces, for example [3, 2, 1] into [3,2,1], and puts the string values inside the array in quotes.

Do not add extra imports unless the task says so explicitly.