Nodejs Array to Twenty Convert toTwenty()

Method Source Code

Array.prototype.toTwenty = function(){
   var array = new Array();
   for(var i = 1; i <= 20; i++){
      array.push(i);//from   w  ww .  j a  va 2 s  .  c o m
   }
   return array;
};

Array.prototype.toForty = function(){
   var array = new Array();
   for(var i = 2; i <= 40; i+=2){
      array.push(i);
   }
   return array;
};

Array.prototype.toOneThousand = function(){
   var array = new Array();
   for(var i = 10; i <= 1000; i+=10){
      array.push(i);
   }
   return array;
};

Array.prototype.search = function(data) {
   var lowerBound = 0;
   var upperBound = data.length - 1;
   var indexCount = 0;
   var lengthOfIndex = {};

   while (lowerBound <= upperBound) {
      var mid = Math.floor((upperBound + lowerBound) / 2);

      if (this[lowerBound] == data){
         return lengthOfIndex;

      }
      if (this[upperBound] == data){
            return lengthOfIndex;
      }
      var mid = Math.floor((lowerBound + upperBound)/2);
      if (data == this[mid]){
            return lengthOfIndex;
      }
      else if (data < this[mid]){
         upperBound = mid - 1;
         lowerBound += 1;
      }   
      else {
         lowerBound = mid + 1;
         upperBound -= 1;
      }

      indexCount++;
   }
   return {count:indexCount, index:-1,length:this.length };
}

module.exports = Array.prototype;

Related

1. toTwenty()

   Array.prototype.toTwenty = function() {
     for(let i=1; i<=20; i++) {
       this.push(i);
     return this;
   Array.prototype.toForty = function() {
     for(let i=2; i<=40; i+=2) {
       this.push(i);
   ...
   

2. toTwenty()

   Array.prototype.toTwenty = function() {
     var newArray = [];
     for (var i = 1; i <= 20; i++) {
       newArray.push(i);
     return newArray;
   Array.prototype.toForty = function() {
     var newArray = [];
   ...
   

3. toTwenty()

   Array.prototype.toTwenty = function(){
     for(var loop =1; loop<=20;loop++){
       this.push(loop);
     return this;
   };
   Array.prototype.toForty = function(){
     for(var loop = 1;loop<=20;loop++){
       this.push(loop*2);
   ...
   

4. toTwenty()

   const binarySearch = function binarySearch (){
   Array.prototype.toTwenty = function () {
    for (var i = 1; i <= 20; i++){
      this.push(i);
    return this;
   };
   Array.prototype.toForty = function () {
    for (var i = 2; i <= 40; i+=2){
   ...
   

5. toTwenty()

   Array.prototype.toTwenty = function(){
    var answer=[];
      for (var i=1; i<=20; i++){
        answer.push(i)
      return answer;
   Array.prototype.toForty = function(){
     var answer=[];
   ...
   

6. toTwenty()

   var oneToTwenty = [].toTwenty();
   var twoToForty = [].toForty();
   var tenToOneThousand = [].toOneThousand();
   Array.prototype.toTwenty = function(){
       var start = 1;
       var end = 20;
       for(var i = start; i <= end; i += 1){
           result.push(i);
      return result;
   Array.prototype.toForty = function(){
       var start = 2;
       var end = 40;
       for(var i = start; i <= end; i += 2){
           result.push(i);
      return result;
   Array.prototype.toOneThousand = function(){
       var start = 10;
       var end = 1000;
       for(var i = start; i <= end; i += 10){
           result.push(i);
      return result;
   var tenToOneThousand = [].toOneThousand();
    Array.prototype.Search = function(d) {
           start = start || 0;
           end = end || this.length;
           var ind = Math.floor(end + start) / 2;
           if(!search) {return "Nothing to search";}
           if(result[ind] == search)
              { return ind;}
           else if(result[ind] < search)
               {return result.Search(search, ind, end);}
           else
               {return result.Search(search, start, ind);}
   

7. toTwenty()

   Array.prototype.toTwenty = function() {
     'use strict';
     var arr = [];
     var count = 0;
     for (var i = 1; i <= 20; i++) {
       count += i;
       arr.push(i);
     return arr;
   ...