Nodejs Array Push Unique pushUnique(item)

Method Source Code

Array.prototype.pushUnique = function (item) {
    if (this.indexOf(item) == -1) {
        this.push(item);//from w ww. ja  v a2s. c o  m
        return true;
    }
    return false;
};

String.prototype.repeat = function (num) {
    return new Array(num + 1).join(this);
};

function toBool(s, defValue) {
    if (typeof s === "undefined") {
        return typeof defValue !== "undefined" ? defValue : false;
    }
    return "false" !== s;
}

if (typeof String.prototype.endsWith !== 'function') {
    String.prototype.endsWith = function (suffix) {
        return this.indexOf(suffix, this.length - suffix.length) !== -1;
    };
}

if (typeof String.prototype.startsWith !== 'function') {
    String.prototype.startsWith = function (str) {
        return this.indexOf(str) == 0;
    };
}

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,unique)

   Array.prototype.pushUnique = function(item,unique)
     if(unique === false) {
       this.push(item);
     } else {
       if(this.indexOf(item) == -1)
         this.push(item);
   };
   ...
   

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;
   ...