[Codility] CyclicRotation

function solution(A, K) {
    // write your code in JavaScript (Node.js 8.9.4)
    const lenA = A.length
    let ans = []
    if(lenA === K) return A
    for (let i = 0; i < lenA; i++) {
        ans[(i + K) % lenA] = A[i]
    }
    return ans
}