Nodejs Array Convert toObject(projection)

Method Source Code

Array.prototype.toObject = function (projection) {
   var result = {};
   for (var i = 0; i < this.length; i++)
      result[this[i][projection]] = this[i];
   return result;
};

Related

1. toNumbers()

   Array.prototype.toNumbers = function() {
     for (var i=0; i<this.length;i++) {
       var val = Number(this[i]);
       if (!isNaN(val)) {
         this[i] = val;
       } else {
         this[i] = 0;
     return this;
   };
   

2. toNumsOnly()

   Array.prototype.toNumsOnly = function() {
     return this.filter(el => !parseInt(el, 10).isNotNumber());
   };
   

3. toObject()

   Array.prototype.toObject = function() {
     var object = {};
     for (var i = 0; i < this.length; ++i)
       object[i] = this[i];
     return object;
   

4. toObject()

   'use strict';
   Array.prototype.toObject = function() {
     var arr = this,
       res = { } ;
     for (var i = 0 ; i < arr.length ; i++) {
       res[ arr[i] ] = arr[i]
     return res
   

5. toObject()

   Array.prototype.toObject = function() {
     var resultObject = {};
     this.map(function (element, index) {
       resultObject[index] = element;
     });
     return resultObject;
   };
   

6. toOneThousand()

   Array.prototype.toOneThousand = function() {
     for (var i = 1; i < 1001; i++) {
       this.push(i);
     return this;
   },
   

7. toOneThousand()

   Array.prototype.toOneThousand = function(){
       var start = 10;
       var end = 1000;
       for(var i = start; i <= end; i += 10){
           this.push(i);
      return this;
   var oneToOneThousand = [].toOneThousand();
   ...
   

8. toOneThousand()

   Array.prototype.toOneThousand = function() {
     return Array.range(1000, 10);
   };
   

9. toOneThousand()

   Array.prototype.toOneThousand = function(){
     b = [];
     for(i=10; i<=1000; i+=10){
       b.push(i);
     return b