Nodejs Array to Twenty Convert toTwenty()

Method Source Code

Array.prototype.toTwenty = function(){
  var twenty = [];
  for ( var i = 1; i <= 20; i++){
    twenty.push(i)//from   w ww .j  av a2  s.  com
      }
      return twenty
  }
Array.prototype.toForty = function() {
  var forty = [];
  for (var i = 2; i <= 40; i+=2){
    forty.push(i)
  }
  return forty
}
Array.prototype.toOneThousand = function(){
  var oneThousand = [];
  for (var i = 10; i <=1000; i+=10) {
  oneThousand.push (i)
  }
  return oneThousand
}
Array.prototype.search = function(num){
  var min = 0,
    index = -1,
    iterationCount = 0,
    max = this.length - 1;
  
  while (max >= min){
    var average = Math.floor((min + max) / 2);

    if (this[min] == num){
      index = min;
      break;
    }

    if (this[max] == num){
      index = max;
      break;
    }

    if (this[average] == num){
      index = average;
      break;
    }

    iterationCount += 1
    if (this[average] < num){
      min = average + 1;
    }else if (this[average] > num){
       max = average - 1;
    }
  }
  
  return {
    count: iterationCount,
    length: this.length,
    index: index
  }
}

Related

1. toTwenty()

   Array.prototype.toTwenty = function() {
     return Array.range(20, 1);
   };
   

2. toTwenty()

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

3. toTwenty()

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

4. 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);
   ...
   

5. toTwenty()

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

6. 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);
   ...
   

7. 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 = [];
   ...
   

8. 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);
   ...
   

9. 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){
   ...