Nodejs Array In in(elementToFind)

Method Source Code

Array.prototype.in = function(elementToFind) {
   for(var i = 0 ; i < this.length ; i++) {
      if(this[i] === elementToFind) {
         return true;
      }/* w  w w .  j  a  v a 2 s. c o  m*/
   }
   return false;
};

Related

1. in(ele)

   Array.prototype.in = function(ele) {
     for (var i=0; i<this.length; i++) {
       if (this[i] == ele) {
         return true;
     return false;
   

2. inArr(item)

   Array.prototype.inArr = function (item){
       for (var i = 0; i < this.length; i++){
           if(this[i] === item){
               return true;
   

3. inArray()

   Array.prototype.inArray = function() {
       for(var j in this) {
           if(this[j] == arguments[0]) {
               return true;
       return false;
   

4. inArray()

   Array.prototype.inArray = function()
     for (var j in this) { 
       if (this[j] == arguments[0]) { 
         return true;
     return false;     
   

5. inArray(comparer)

   Array.prototype.inArray = function(comparer) { 
       for(var i=0; i < this.length; i++) { 
           if(comparer(this[i])) return true; 
       return false; 
   };