Nodejs Array Join join()

Method Source Code

//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------

function foo(arr)
{
    var o2 = o;/*w  ww.  ja  va2  s . c om*/
    var y = 100;
    for (var i =0;i<10;i++)
    {
        y += o2.x + arr;
    }
    WScript.Echo(y);
}
var o = {x:1};
var arr = [1,2,3,4]
Array.prototype.join = function(){ return o.x+=100; }
foo(arr);

Related

1. join(separator)

   Array.prototype.join = function(separator) {
     var s = new String();
     for (var i = 0, len = this.length; i < len; i++) {
       s += (i > 0) ? separator : "";
       s += (typeof this[i] == "object" && this[i].constructor === Array) ? this[i].join(separator) : this[i];
     return s;
   };
   

2. joinModel(id_app,model,joinFields,fn)

   Array.prototype.joinModel = function(id_app,model,joinFields,fn){
     var array = this;  
     async.map(array,function(a,callback){
       async.map(joinFields,function(join,callback){
         var akey = join.akey;
         var bkey = join.bkey;
         var avalue = a[akey];
         var query = {id_app:id_app};
         query[bkey] = avalue;
   ...
   

3. joinsub(array, sizediff)

   Array.prototype.joinsub = function (array, sizediff) {
     if (!array)
       return null;
     var match = [];
     for (var i = 0; i < this.length; i++) {
       if (this[i].contains(array, sizediff)) {
         for (var j = 0; j < this[i].length; j++) {
           if (array.indexOf(this[i][j]) == -1) {
               match.push(this[i][j]);
   ...