Nodejs Array Push Unique pushUnique(item,unique)

Method Source Code

// Push a new value into an array only if it is not already present in the array. If the optional unique parameter is false, it reverts to a normal push
Array.prototype.pushUnique = function(item,unique)
{
   if(unique === false) {
      this.push(item);//from w ww.  j a  v a  2  s  .  com
   } else {
      if(this.indexOf(item) == -1)
         this.push(item);
   }
};

Related

1. pushIfUnique(entryIn)

   Array.prototype.pushIfUnique = function(entryIn){
       var arr = this;
       var unique = true;
       arr.forEach(function(entry){
           if(entryIn === entry){
               unique = false;
       });
       if(unique){
   ...
   

2. pushUniq(el, test)

   Array.prototype.pushUniq = function(el, test) {
       if (test == null) {
           if (this.indexOf(el) < 0) {
               this.push(el);
               return true;
           return false;
       for (var i = this.length; --i >= 0;)
   ...
   

3. pushUnique(item)

   Array.prototype.pushUnique = function(item){
       if(this.indexOf(item) === -1) this.push(item);
   

4. pushUnique(item)

   Array.prototype.pushUnique = function (item){
       if(this.indexOf(item) === -1) {
           this.push(item);
           return true;
       return false;
   };
   

5. pushUnique(item)

   Array.prototype.pushUnique = function (item) {
       if (this.indexOf(item) == -1) {
           this.push(item);
           return true;
       return false;
   };
   String.prototype.repeat = function (num) {
       return new Array(num + 1).join(this);
   ...
   

6. pushUnique(k, v)

   Array.prototype.pushUnique = function(k, v) {
     exist = false;
     for(var i = 0; i < this.length; i++) {
       if (this[i][k] == v) return this[i];
     if (!exist) {
       obj = {};
       obj[k] = v;
       this.push(obj);
   ...
   

7. pushUnique(obj)

   Array.prototype.pushUnique=function(obj){
     if(this.containsObject(obj)){
       return;
     this.push(obj);
   

8. pushUnique(obj, equalityFunction)

   Array.prototype.pushUnique = function (obj, equalityFunction) {
     equalityFunction  = (typeof equalityFunction === "undefined") ? function(a, b) { return a === b } : equalityFunction;
     for(var n = 0; n < this.length; n++) {
       if(equalityFunction(this[n], obj)) { 
         return false;
     this.push(obj);
     return true;
   ...
   

9. pushUnique(value)

   Array.prototype.pushUnique = function(value) {
       if (this.include(value)) return this;
       this.push(value);
       return this;
   Array.prototype.concatUnique = function(arr) {
       for (index in arr) {
           if (typeof arr[index] != "function") this.pushUnique(arr[index]);
       return this;