Nodejs Array Contain contains(ele)

Method Source Code

Array.prototype.contains = function(ele) {
   for (var i = 0; i < this.length; i++) {
      if (this[i] === ele) return true;
   }//from   ww w  .  ja  va 2s. c o m
   return false;
};
Array.prototype.clear = function() {
   var cnt = this.length;
   this.splice(0, cnt);
};
Array.prototype.findBy = function(key, val) {
   for (var i = 0; i < this.length; i++) {
      if (this[i][key] === val) return this[i];
   }
   return null;
};

String.prototype.substitute = function(dict, sign) {
   var substitution = this;
   if (typeof sign !== "string") 
      sign = "#";
   for (var key in dict) {
      substitution = substitution.replace(new RegExp( sign + '{' + key + '}', 'g'), dict[key])
   }
   return substitution;
};

Related

1. contains(e)

   Array.prototype.contains = function(e) {
       for (var i = this.length - 1; i >= 0; i--) {
           if (this[i] == e) {
               return true;
       return false;
   };
   

2. contains(e,ignore)

   Array.prototype.contains  = function(e,ignore)  {  
     if(ignore==undefined) ignore = false;
       for(var i=0;i<this.length;i++){  
       if(ignore){
         if(this[i].toLowerCase() == e.toLowerCase()) 
           return true; 
       }else{
         if(this[i] == e) 
           return true; 
   ...
   

3. contains(el)

   "use strict";
   Array.prototype.contains = function(el){
     return this.indexOf(el) > -1;
   };
   var rotateArray = function rotateArray(arr){ 
     arr.unshift(arr.pop());
     return arr;
   };
   print(function(input){ 
   ...
   

4. contains(el)

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

5. contains(el, test)

   Array.prototype.contains = function(el, test) {
       if (test == null) return this.indexOf(el) >= 0;
       for (var i = this.length; --i >= 0;) if (test(this[i], el)) return true;
   };
   

6. contains(ele)

   Array.prototype.contains = function(ele)
       if(!ele) return false;
       var b=false;
       for(var i=0;i<this.length;i++){
           if(this[i]==ele){
               b=true;
       return b;
   };
   Array.prototype.uniq = function(){
       var a = [];
       this.forEach(function(b){ 
           if(a.indexOf(b) < 0)
               {a[a.length] = b}
       });
       return a;
   };
   Array.prototype.uniqById = function(){
       var a = [];
       var r = [];
       this.forEach(function(b){
           if(b){
               if("id" in b){
                   if(a.indexOf(b.id) < 0){
                       a[a.length] = b.id;
                       r[r.length] = b;
               }else if("_id" in b){
                   if(a.indexOf(b._id) < 0){
                       a[a.length] = b._id;
                       r[r.length] = b;
       });
       return r;
   

7. contains(elem)

   Array.prototype.contains = function(elem)
     for (var i in this)
       if (this[i] == elem) return true;
     return false;
   };
   

8. contains(elem)

   Array.prototype.contains = function(elem) {
       return this.indexOf(elem) != -1;
   

9. contains(elem)

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