Nodejs Array Insertion Sort insertionSort()

Method Source Code

'use strict';/* www.jav a 2s.co  m*/

// ArraySorting
const ArraySorting = {};

ArraySorting.insertionSort = a => {
    for(let o = 1; o < a.length; o++) {
        for(let i = o; i > 0 && a[i] < a[i-1]; i--) {
            [a[i], a[i-1]] = [a[i-1], a[i]]
        }
        // Invariant: a[:o] is sorted
    }
}

Array.prototype.insertionSort = function () {
    ArraySorting.insertionSort(this);
}

exports.ArraySorting = ArraySorting;

Related

1. insertSort()

   Array.prototype.insertSort = function(){
     var len = this.length;
     var temp;
     for(var i = 1;i < len;i++){
       temp = this[i];
       if(this[i] < this[i-1]){
         for(var j = i-1;j > 0&&temp<this[j];j--){
           this[j+1] = this[j];
         this[j+1] = temp;
     return this;
   

2. insertationSort()

   Array.prototype.insertationSort = function() {
       this.procedures=[]
       var compare = 0
       var exchange = 0
       var comparet = this.length * this.length / 4
       var exchanget = comparet
       for (var i = 1; i < this.length; i++) {
           for (var j = i; j > 0; j--) {
               compare++
   ...
   

3. insertion(arr)

   Array.prototype.insertion = function(arr){
       var returnArr = [];
       for(var i = 0; i < arr.length; i++){
           if(i==0){
               returnArr.push(arr[i]);
           }else{
               if(arr[i]<returnArr[i-1]){
                   var j = i;
                   while(j!=0&&arr[i]<returnArr[j]){
   ...
   

4. insertionSort()

   Array.prototype.insertionSort = function () {
     var i, j;
     var temp;
     for (i = 1; i < this.length; i++) {
       temp = this[i];
       for (j = i - 1; j >=0 && this[j] > temp; j--) {
         this[j + 1] = this[j];
       this[j + 1] = temp;
   ...
   

5. insertionSort()

   Array.prototype.insertionSort = function() {
     for(var i = 1; i < this.length; i++) {
       var hole = i;
       while (hole > 0 && this[hole - 1] > this[i]) {
         hole--;
       this.splice(hole, 0, this[i]);
       this.splice(i + 1, 1);
     return this;
   

6. insertionSort()

   Array.prototype.insertionSort = function(){
       if(this.length === 0)
           return "Array is empty!!";
       else if(this.length ===1)
           return this;
       else{
           for(var outerLoopIndex =1,arrLen = this.length;
               outerLoopIndex<arrLen;outerLoopIndex++)
               var temp = this[outerLoopIndex];
               for(var innerLoopIndex = outerLoopIndex-1;
                   innerLoopIndex >= 0 && this[innerLoopIndex] >                          temp ;innerLoopIndex--)
                   this[innerLoopIndex+1] = this[innerLoopIndex];   
               this[innerLoopIndex+1] = temp;
       return this;
   

7. insertionSort()

   "use strict";
   Array.prototype.insertionSort = function() {
     for (var key = 1; key < this.length; key++) {
       for (var swap_key = key; this[swap_key] < this[swap_key - 1]; swap_key--) {
         var temp = this[swap_key];
         this[swap_key] = this[swap_key - 1];
         this[swap_key - 1] = temp;
   };
   var assert = function(expression, name) {
     if ( ! expression) {
       console.log('** Assertion failed', name || '')
   var a1 = [5,4,3,6,7,1,2,8,9];
   a1.insertionSort();
   console.log(a1);
   assert(a1.toString() === [1,2,3,4,5,6,7,8,9].toString(), 'Test it is sorted');
   

8. insertionSort()

   Array.prototype.insertionSort = function () {
       for (var i = 1; i < this.length; i++) {
           var j = i, value = this[i];
           while(j > 0 && value < this[j-1]){
               this[j] = this[j-1];
               j--;
           this[j] = value;
   };
   

9. insertionSort(desc)

   Array.prototype.insertionSort = function(desc) {
     let A = Object.assign([], this)
     for(let j = 1; j < A.length; j++) {
       let key = A[j]
       let i = j - 1
       while(i >= 0 && (desc ? A[i] < key : A[i] > key)) {
         A[i + 1] = A[i]
         i = i - 1
       A[i + 1] = key
     return A
   let arr = [3, 8, 1, 6, 5, 4, 9, 2, 7]
   let ascending = arr.insertionSort() 
   let descending = arr.insertionSort(true) 
   Array.prototype.selectionSort = function(desc) {
     let A = Object.assign([], this)
     for(let j = 0; j < A.length; j++) {
       let key = A[j]
       let m = j
       for(let i = j; i < A.length; i++) {
         m = (desc ? A[i] > A[m] : A[i] < A[m]) ? i : m
       A[j] = A[m]
       A[m] = key
     return A
   let arr = [3, 8, 1, 6, 5, 4, 9, 2, 7]
   let ascending = arr.selectionSort() 
   let descending = arr.selectionSort(true)