Nodejs Array Push Unique pushIfUnique(entryIn)

Method Source Code

Array.prototype.pushIfUnique = function(entryIn){
    var arr = this;
    var unique = true;
    arr.forEach(function(entry){
        if(entryIn === entry){
            unique = false;/*from   w  w w . j  av  a 2  s  .  co  m*/
        }
    });
    if(unique){
        arr.push(entryIn);
    }
};

Related

1. 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;)
   ...
   

2. pushUnique(item)

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

3. pushUnique(item)

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

4. 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);
   ...