角度js拖动购物车项目已经是购物车增量计数

Question

我的plnkr url

我的js代码

$(function() {
          $("#catalog").accordion();
        });
        var App = angular.module('drag-and-drop', ['ngDragDrop']);
        App.controller('oneCtrl', function($scope, $timeout) {
          $scope.list1 = [{"name":"Axe","mrp":"$91","discount":"$81.00","quantity":1},{"name":"soaps","mrp":"10.00","discount":"2.00","quantity":1}];
          $scope.list4 = [];
          $scope.hideMe = function() {
            return $scope.list4.length > 0;
          }
        });

onclick + increment function

function ctrl($scope) {
          $scope.increment = function(item){
            item.quantity += 1;
          }
           $scope.minus = function(item){
            item.quantity -= 1;
          }
        }

1）如何在篮子增量计数中追加项目 2）如果已经在购物车中的商品将商品添加到购物车

，请单击+图标以增加

任何想法的朋友