Nodejs Array Rotate rotate(n)

Method Source Code

var a =  (function() { var a = []; for (var i = 0; i < 35; i++) { a.push(i) }; return a; }())
// [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34]

Array.prototype.rotate = function(n) {
  var a = this.concat(this.splice(0, n))
  return a//  www.ja  v  a  2  s.  c  om
}

a.rotate(12)
// [12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]

function findI(arr, i) {
  if (arr.length == 2) { return i+1 }
  var k = (arr.length/2).floor(), i = i || 0
  if (arr[0] > arr[k]) { 
    return findI(arr.slice(0, k+1), i)
  } else {
    return findI(arr.slice(k), k+i)
  }

}

rotate(()

'use strict';
Array.prototype.rotate = (function() {
    var unshift = Array.prototype.unshift;
    var splice = Array.prototype.splice;
    return function(count) {
        var len = this.length >>> 0;
        count = count >> 0;
        unshift.apply(this, splice.call(this, count % len, len));
        return this;
...

rotate(()

export function zeroOrOne() {
  return Math.round(Math.random() * 1)
export function arrayShuffle(a) {
  let j, x, i;
  for (i = a.length; i; i -= 1) {
    j = Math.floor(Math.random() * i);
    x = a[i - 1];
    a[i - 1] = a[j];
...

rotate(K)

Array.prototype.rotate = function (K){
  var N = this.length;
  if( N  < 1 || K < 1 || K > N ){
    return this;
  this.reverse(0, N - K - 1);
  this.reverse(N-K, N-1);
  this.reverse();
  return this;
...

rotate(count)

Array.prototype.rotate = function(count)
        var len = this.length >>> 0, 
            count = count >> 0; 
        count = ((count % len) + len) % len;
        var copy = this.clone(this);
        push.apply(copy, splice.call(copy, 0, count));
        return copy;
  };
...

rotate(n)

Array.prototype.rotate = function(n) {
  this.unshift.apply(this, this.splice(n + 1, this.length))
  return this;
var arr = [1, 2, 3, 4, 5];
var arr1 = [1, 2, 3, 4, 5];
var rotate = function(arr, r) {
  arr.unshift.apply(arr, arr.splice(r + 1, arr.length));
};
...

rotate(times)

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
...

rotateArray(n)

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));

rotate_copy(begin, middle, end)

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;
};

Nodejs Array Rotate rotate(n)

Method Source Code

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