js数组去重

Posted 2021-01-31 sfornt

        var list = [{id:1, name:'111'}, {id:2, name:'222'}, {id:2, name:'333'}];

        function distinctListById(arr){
          var tmp = {};
         if(arr && arr.length){
           for(var i = 0; i < arr.length; i++){
            if(!tmp[arr[i].id]){
              tmp[arr[i].id] = 1;
            }else{
              arr.splice(i, 1);
            }
           }
         }
         return arr;
        }