Nodejs Array Remove Duplicate removeDuplicate()

Method Source Code

Array.prototype.removeDuplicate = function()
{
   var tmp = [];//from  ww w  . j  a  v a 2s.c  o m

   var agent = {};

   for( var i = 0; i < this.length; i++ )
   {
      if( !agent.hasOwnProperty( this[ i ] ) )
         agent[ this[ i ] ] = { val: this[ i ], index: i };
   }

   console.log( agent );

   for( var ns in agent )
   {
      //tmp.push( agent[ ns ] );

      var d = agent[ ns ];
      tmp[ d.index ] = d.val;
   }

   for( i = tmp.length - 1; i > 0; i-- )
   {
      if( is_empty( tmp[ i ] ) ) tmp.splice( i, 1 );
   }
   //-----------------------------------------------
   return tmp;
};

Related

1. removeDuplicate()

   Array.prototype.removeDuplicate = function() {
     return this.reduce(function(last,current){
       if(last.indexOf(current) === -1){
         last.push(current);
       return last;
     },[])
   };
   var array = [1,1,2,1,3,4,12,4,5,,12,3,4];
   ...
   

2. removeDuplicateDates()

   Array.prototype.removeDuplicateDates = function() {
     var u = [];
     for ( var i = 0; i < this.length; i++ ) {
       var current = new Date(this[i]);
       if ( u.map(Number).indexOf(+current) < 0 ) {
         u.push(current);
     return u;
   ...
   

3. removeDuplicateValues()

   Array.prototype.removeDuplicateValues = function () {
       return this.filter(function (elem, pos, self) {
           return self.indexOf(elem) == pos;
       });
   

4. removeDuplicateValues()

   Array.prototype.removeDuplicateValues = function () {
       return this.filter(function (elem, pos, self) {
           return self.indexOf(elem) === pos;
       });
   };
   

5. removeDuplicatedValues()

   Array.prototype.removeDuplicatedValues = function (){
       var lArray  = this || [];
       var lLength = lArray.length;
       for (var i = lLength - 1; i > -1; i--){
           if (lArray.indexOf(lArray[i]) != i){
               lArray.splice(i, 1);
       if (lLength != lArray.length){
   ...