Nodejs Utililty Methods Array Swap

Array.prototype.swap = function(i, j){
  var temp = this[i]
  this[i] = this[j]
  this[j] = temp

Array.prototype.swap = function (i, j) {
    var k = this[i]; this[i] = this[j]; this[j] = k;
function bubbleSort(list) {
    var items = list.slice(0), swapped = false, p, q;
    for (p = 1; p < items.length; ++p) {
        for (q = 0; q < items.length - p; ++q) {
            if (items[q + 1] < items[q]) {
                items.swap(q, q + 1);
...

'use strict';
Array.prototype.swap = function (i, j) {
  const temp = this[i];
  this[i] = this[j];
  this[j] = temp;
function qsort (arr, lo=0, hi=arr.length - 1) {
  if (lo >= hi) return;
  arr.swap(lo, Math.floor(Math.random() * (hi - lo)) + lo);
...

Array.prototype.swap = function (i, j) {
    var tmp = this[i];
    this[i] = this[j];
    this[j] = tmp;
};

Array.prototype.swap = function(i,j){
  var a = this;
  if(i!=j){
    a[j]^=a[i];
    a[i]^=a[j];
    a[j]^=a[i];

function quickSort(arr){
    function partition(low, high){
        if(high - low < 2){
            return
        var pivot = arr[low]
        var wall = low
        for(var i = low; i <= high; i++){
            if(arr[i] < pivot){
...

Array.prototype.swap = function(index1, index2) {
    var temp = this[index1];
    this[index1] = this[index2];
    this[index2] = temp;
};

Array.prototype.swap = function(index1, index2) { 
  let temp = this[index1]; 
  this[index1] = this[index2]; 
  this[index2] = temp 
};

export default function stringPermutation(string) {
  let permutations = []
  function recursivePermutations(array, index) {
    if(index === array.length) {
      permutations.push(array.join(''))
      return
    for (let i = index; i < array.length; i++) {
      let copy = array.slice(0)
...

Array.prototype.swap = function(index_A, index_B) {
    var input = this;
    var temp = input[index_A];
    input[index_A] = input[index_B];
    input[index_B] = temp;