Nodejs Array Multiply multiply(a2)

Method Source Code

Array.prototype.multiply = function(a2) {
  var l1 = this.length;
  var l2 = a2.length;
  var len = (l1 < l2 ? l1 : l2);
  var result = new Array(len);

  for (var i = 0; i < len; i++) {
    result[i] = this[i] * a2[i];/*from w w  w  .  j a  v a2  s  .co  m*/
  }
  return result;
}

Related

1. mul(value)

   Array.prototype.mul = function(value) {
     var newArray = new Array();
     for(var i=0; i<this.length; i++) {
       newArray[i] = this[i] * value;
       return newArray;
   

2. mult(other)

   Array.prototype.mult = function(other) {
       if(isFinite(other))  
           other = new Array(this.length).fill(other);
       else
           console.assert(this.length == other.length, 'mult: len(a) != len(b)');
       var ret = new Array(this.length);
       for(var i = 0; i < ret.length; i++)
           ret[i] = this[i] * other[i];
       return ret;
   ...
   

3. mult2()

   Array.prototype.mult2 = function() {
       for (var i = 0; i < this.length; i++) {
           this[i] = this[i] * 2;
   };
   

4. multipleConcat()

   Array.prototype.multipleConcat = function() {
       var initialArray = arguments[0];
       if (arguments.length > 0) {
         for (var i = 1, arrayCount = arguments.length; i < arrayCount; i++ ) {
           initialArray.push.apply(initialArray, arguments[i]);
         return initialArray;
   };
   ...
   

5. multiples(multiple)

   Array.prototype.multiples = function(multiple) {
     var multiples = [];
     for (var i = 0; i < this.length; i++){
       multiples.push(this[i] * multiple);
     return multiples;
   console.log([1,2,3,4,5].multiples(5));
   Array.prototype.myEach = function(someFunction){
   ...
   

6. multiply(n)

   Array.prototype.multiply = function(n){
     results = []
     for (var i = 0; i < this.length; i++){
       for (var j = 0; j < n; j++){
         results.push(this[i])
     return results
   

7. multiplyByTwo()

   Array.prototype.multiplyByTwo = function() {
     var newArr = [];
     for (var i = 0; i < this.length; i++) {
       newArr.push(this[i] * 2)
     return newArr;
   };
   console.log([1, 2, 3].multiplyByTwo());
   Array.prototype.myEach = function(func) {
   ...
   

8. multislice(ranges)

   Array.prototype.multislice = function(ranges) {
     if(typeof ranges === 'undefined')
       throw Exception("Ranges have to be defined!");
     if(typeof ranges !== 'object') 
       throw Exception("You have to pass an array!");
     return ranges.map(el => this.slice(el.from, el.to));
   };
   

9. multislice(ranges)

   'use strict';
   var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { 
     return typeof obj; 
     } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };
   Array.prototype.multislice = function (ranges) {
     var _this = this;
     if (typeof ranges === 'undefined') throw Exception("Ranges have to be defined!");
     if ((typeof ranges === 'undefined' ? 'undefined' : _typeof(ranges)) !== 'object') throw Exception("You have to pass an array!");
     return ranges.map(function (el) {
   ...