Nodejs Utililty Methods Array Rotate

var a =  (function() { var a = []; for (var i = 0; i < 35; i++) { a.push(i) }; return a; }())
Array.prototype.rotate = function(n) {
  var a = this.concat(this.splice(0, n))
  return a
a.rotate(12)
function findI(arr, i) {
  if (arr.length == 2) { return i+1 }
  var k = (arr.length/2).floor(), i = i || 0
...

Array.prototype.rotate = function(times) {
  if (times < 0) {
    var last = arr.pop
    return arr.unshift(last)
function solution (numbers, times) {
  for (var i = 0; i < times; i++) {
    numbers.rotate
...

Array.prototype.rotateArray = function (n) {
    let firstArray = [];
    let secondArray = [];
    for (let i = this.length - 1; i > this.length - n - 1; i--) {
        firstArray.unshift(this[i]);
    for (let j = 0; j < this.length - n; j++) {
        secondArray[secondArray.length] = this[j];
    return firstArray.concat(secondArray);
function createArray() {
    let valuesStr = prompt("Enter an Array : ");
    let arrayStr = valuesStr.split(" ");
    let array = [];
    for (let i = 0; i < arrayStr.length; i++) {
        if (arrayStr[i] )
        array[array.length] = Number(arrayStr[i]);
    return array;
let array = createArray();
console.log(array.rotateArray(3));

Array.prototype.rotate_copy = function (begin, middle, end) {
  var back = this.slice (begin, middle - begin);
  back.unshift (0);
  back.unshift (end - middle);
  var front = this.slice (middle, end);
  front.splice.apply (front, back);
  return front;
};