Nodejs Array Add All addAll(index, elements)

Method Source Code

/** Adds all of the specified elements to the end of this array. */
Array.prototype.addAll = function(index, elements) {
  if (arguments.length == 2) {
    var n = this.length, m = elements.length;
    this.length += m;/*from  w  ww  .j a v a 2s  . c o  m*/
    for (var i = n - 1; i >= index; i--) {
      this[i + m] = this[i];
    }
    for (var i = 0; i < m; i++) {
      this[i + index] = elements[i];
    }
  } else {
    for (var i = 0; i < index.length; i++) {
      this.push(index[i]);
    }
  }
};

Related

1. addAll( list )

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

2. addAll(addingElements)

   Array.prototype.addAll = function(addingElements) {
     for (var elementIndex = 0; elementIndex < addingElements.length; ++elementIndex) {
       this.push(addingElements[elementIndex]);
   };
   

3. addAll(arr)

   Array.prototype.addAll = function (arr) {
       var len = arr.length;
       for (var i = 0; i < len; i++) {
           this.push(arr[i]);
   };
   

4. addAll(arr)

   "use strict";
   Array.prototype.addAll = function (arr) {
       for (const elm of arr) {
           this.push(elm);
   };
   if (!Array.prototype.includes) {
       Array.prototype.includes = function (element) {
           return this.indexOf(element) > -1;
   ...
   

5. addAll(index, items)

   Array.prototype.addAll = function(index, items){
     if (items === undefined){
       items = index;
       index = 0;
     for (var i=0; i<items.length; i++){
       this.add(index+i, items[i]);
     return true;
   ...
   

6. addAll(items)

   Array.prototype.addAll = (items) => {
       this.push.apply(this, items);
       this.push(null);
       this.pop();