rotateArraybyInt.js

function solution(A, K) {
  if(A !== undefined && A.length > 0)
    {
        for(let i =0; i < K; i++){
            A.unshift(A.pop());
          //unshift add element/s to begin of array and returns length of new array
          //pop removes last element and returns that element (changes length of array)
            }
    }
    return A;
}