Nodejs Array Has has(value)

Method Source Code

// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Array.prototype.has = function(value) {

   for (var i = 0, l = this.length; i < l; ++i) {
   //from   w w w  . j  a  v a 2s. c o m
      if (this[i] == value) return true;
   }
   
   return false;
}

Related

1. has(needle)

   Array.prototype.has = function(needle) {
       return $.inArray(needle, this) != -1;
   };
   Object.prototype._toString = function() {
       this.str = '';
       for (var prop in this)
           try
               if (typeof(this[prop]) != "undefined")
                   this.str += prop + ': ' + this[prop] + "\n";
               else
                   this.str += prop + ': "",' + "\n";
           } catch(e) {}
       return this.str;
   };
   

2. has(needle)

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

3. has(object, compFun)

   Array.prototype.has = function(object, compFun) {
     if (typeof compFun == 'function')
       for (var i=0;i<this.length;i++)
         if (compFun(this[i],object)) return i;
     else
   ...
   

4. has(v)

   Array.prototype.has= function (v) {
       for (i = 0; i < this.length; i++) {
           if (this[i] == v) {
               return i;
       return false;
   

5. has(v)

   Array.prototype.has=function(v) {
     for (i=0;i<this.length;i++) {
       if (this[i]==v) return i;
     return undefined;
   

6. has(value)

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

7. has(value)

   Array.prototype.has = function(value) {
     for (var i = 0, l = this.length; i < l; ++i) {
       if (this[i] == value) return true;
     return false;
   

8. has(value, defaultValue)

   Array.prototype.has = function(value, defaultValue) {
     for (i = 0; i < this.length; i++)
       if (this[i].toLowerCase() == value) return this[i];
     return defaultValue;
   

9. hasContain(val)

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