Nodejs Array Push If Not Exist pushIfNotPresent(pValue)

Method Source Code

Array.prototype.pushIfNotPresent = function (pValue){
    var lArray = this || [];
    //from  w  ww .  j  a  va2 s.c o  m
    if (lArray.indexOf(pValue) == -1){
        lArray.push(pValue);
        return true;
    }
    
    return false;
}

Related

1. pushIfNotExist(element, comparer)

   Array.prototype.pushIfNotExist = function(element, comparer) { 
       if (!this.inArray(comparer)) {
           this.push(element);
   };
   

2. pushIfNotExist(element, comparer)

   Array.prototype.pushIfNotExist = function(element, comparer) { 
       if (!this.inArray(comparer)) {
           this.push(element);
   }; 
   function arrayObjectIndexOf(myArray, property, searchTerm) {
       for(var i = 0, len = myArray.length; i < len; i++) {
           if (myArray[i][property] === searchTerm) return i;
       return -1;
   

3. pushIfNotExist(element, comparer)

   Array.prototype.pushIfNotExist = function(element, comparer) { 
       if (!this.inArray(comparer)) {
           this.push(element); 
           return true;
       return false;
   }; 
   function arrayObjectIndexOf(myArray, property, searchTerm) {
       for(var i = 0, len = myArray.length; i < len; i++) {
   ...
   

4. pushIfNotExist(item)

   Array.prototype.pushIfNotExist = function (item) {
       if (item == null)
           return;
       var exist = false;
       for (var i = 0; i < this.length; i++) {
           if (this[i] == item) {
               exist = true;
               break;
       if (!exist)
           this.push(item);
   };
   

5. pushIfNotExist(item)

   Array.prototype.pushIfNotExist = function(item) {
     if (!this.inArray(item)) {
       this.push(item);
   };