Nodejs Array Add All addAll(arr)

Method Source Code

"use strict";/*from w ww .  j  a  v a2s  .  c  o m*/
// Ensure this is treated as a module.
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;
    };
}
if (!String.prototype.startsWith) {
    String.prototype.startsWith = function (searchString) {
        return this.substring(0, searchString.length) === searchString;
    };
}
if (!String.prototype.endsWith) {
    String.prototype.endsWith = function (searchString) {
        return this.indexOf(searchString, this.length - searchString.length) > -1;
    };
}
if (!Date.prototype.isValid) {
    Date.prototype.isValid = function () {
        // An invalid date object returns NaN for getTime() and NaN is the only
        // object not strictly equal to itself.
        return this.getTime() === this.getTime();
    };
}
if (!Object.values) {
    Object.values = function (obj) {
        let l = [];
        for (const propName in obj) {
            l.push(obj[propName]);
        }
        return l;
    };
}

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(index, elements)

   Array.prototype.addAll = function(index, elements) {
     if (arguments.length == 2) {
       var n = this.length, m = elements.length;
       this.length += 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];
   ...
   

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();