Nodejs Array Set setItem(value,mode)

Method Source Code

// Adds, removes or toggles a particular value within an array
//  value - value to add
//  mode - +1 to add value, -1 to remove value, 0 to toggle it
Array.prototype.setItem = function(value,mode)
{
   var p = this.indexOf(value);
   if(mode == 0)/*w ww.  ja  v  a  2 s . c  o m*/
      mode = (p == -1) ? +1 : -1;
   if(mode == +1) {
      if(p == -1)
         this.push(value);
   } else if(mode == -1) {
      if(p != -1)
         this.splice(p,1);
   }
};

Related

1. set()

   Array.prototype.set = function () {
       var copy = this.slice();
       copy.sort()
       var result = "{" + copy[0];
       for (var i = 1; i < copy.length; i++)
           result += "," + copy[i];
       result += "}";
       return result;
   };
   ...
   

2. set(index, item)

   Array.prototype.set = function(index, item){
     if (index >= this.length){
       this.add(index, item);
     } else {
       this[index] = item;
   

3. set(key,value)

   Array.prototype.set = function(key,value){
     this[key] = value;
   

4. setArray(array)

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

5. setTo(targetArray)

   Array.prototype.setTo = function (targetArray) {
       if (!targetArray || targetArray.length < 1)
           return false;
       if(this.length != size)
         for(var i = 0; i < size; i++)
       this.push([]);
       for (var i = 0; i < size; i++) {
           for(var j = 0; j < size; j++)
               this[i][j] = targetArray[i][j];
       return this;
   

6. setWhere(property, value, setProperty, setValue)

   Array.prototype.setWhere = function (property, value, setProperty, setValue) {
       "use strict";
       for(var i = 0; i < this.length; i++) {
           if(this[i][property] === value) {
               this[i][setProperty] = setValue;
               return;
   };
   ...