Nodejs Array Remove Duplicate removeDuplicateDates()

Method Source Code

Array.prototype.removeDuplicateDates = function() {
  var u = [];/* w w w .j  a v a  2s  .co m*/
  
  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;
}

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. removeDuplicate()

   Array.prototype.removeDuplicate = function()
     var tmp = [];
     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 )
       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;
   };
   

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){
   ...
   

6. removeDuplicates()

   Array.prototype.removeDuplicates = function() {
       var array = this;
       return array.filter(function(elem, pos) {
           return array.indexOf(elem) == pos;
       })
   };