Nodejs Array Has has(object, compFun)

Method Source Code

Array.prototype.has = function(object, compFun) {
   if (typeof compFun == 'function')
   {// w ww  .j  a va 2  s. c  o  m
      for (var i=0;i<this.length;i++)
      {
         if (compFun(this[i],object)) return i;
      }
   }
   else
   {
      for (var i=0;i<this.length;i++)
      {
         if (object.equals(this[i])) return i;
      }
   }
   return -1;
}

function equals(to) {
   if (!to) return false;
   if (this.length != to.length)
   {
      return false;
   }
   for (var i=0;i<this.length;i++)
   {
      if (this[i] != to[i])
      {
         return false;
      }
   }
   return true;
}

Buffer.prototype.equals = equals;
Array.prototype.equals = equals;

exports.randomBuffer = function(size) {
   var result = new Buffer(size);
   for (var i=0;i<size;i++)
   {
      result[i] = Math.floor(Math.random()*256);
   }
   return result;
}

Related

1. has(elem)

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

2. has(elm)

   Array.prototype.has = function(elm) {
     return~~ this.indexOf(elm);
   };
   

3. has(item)

   "use strict";
   Array.prototype.has = function (item) {
       return this.indexOf(item) > -1;
   };
   

4. 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;
   };
   

5. has(needle)

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

6. has(v)

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

7. has(v)

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

8. 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;
   

9. 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;
   };
   ...