Nodejs Array Multiply mult(other)

Method Source Code

Array.prototype.mult = function(other) {
    if(isFinite(other))  // is number
        other = new Array(this.length).fill(other);
    else//from  w  ww  .  j a  va 2  s.  c  om
        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;
}

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. mult2()

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

3. 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;
   };
   ...
   

4. 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){
   ...
   

5. multiply(a2)

   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];
     return result;
   ...