Codility CyclicRotation Exercise Solution (JavaScript/NodeJS)

solution_codility_cyclicrotation.js

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A, K) {
    // write your code in JavaScript (Node.js 8.9.4)
    
    if (A.length === K || K === 0) {
        return A
    } else if (A.length === 0) {
      return []
    }
    
    for (let i = 0; i < K; i++) {
        let lastValue = A.pop()
        A.unshift(lastValue)
    }
    
    return A
}