Complete version of the shopping cart program (JavaScript code)

[javascript]
/***********************************Shopping Cart Category****************** ************************/ 
 
    var product=function(productArr){/*商品类基类productArr=>array;productArr['ID'],productArr['name'],productArr['pic'],=productArr['lvs'],productArr['width']，productArr['thickness '],productArr['length'],productArr['open'],productArr['capacity']*/ 
        var _ID=productArr['ID'],_name=productArr['name'],_pic=productArr['pic'],_price=productArr['price'],_weight=productArr['weight'],_originalPrice=productArr['originalPrice'],_this=this; 
        this.num=productArr['num']; 
        this.getName=function(){ 
            return _name; 
            } 
        this.getID=function(){ 
            return _ID; 
            }    
        this.getPrice=function(){ 
            return _price; 
            } 
        this.getWeight=function(){ 
            return _weight; 
            } 
        this.getPic=function(){ 
            return _pic; 
            } 
        this.getOriginalprice=function(){ 
            return _originalPrice; 
            } 
        this.setNum=function(newNum){ 
            _this.num=newNum; 
            } 
        this.getTotal=function(){ 
            var total=_this.num*_this.getPrice(); 
            return total; 
            }    
         
        } 
     
    var makeProductObj=function(gID,pID,num){//制造product对象函数,返回制造的product对象,gID=>数据组ID，pID=>商品ID 
            /*********Manufacturing Code*********/ 
            var pData=[]; 
            (function(gID,pID){ 
                $.ajax({ 
                    url:'/module/data/default.php?action=dataDetail&groupID='+gID+'&ID='+pID+'&r='+newDate(), 
                    type:'post', 
                    dataType:'xml', 
                    async:false, 
                    /**Factory method***/ 
                    success:function(dataXML){ 
                        pData.price=$(dataXML).children('root').children('extend19').text(); 
                        pData.originalPrice=$(dataXML).children('root').children('extend9').text(); 
                        pData.weight=$(dataXML).children('root').children('extend21').text(); 
                        pData.name=$(dataXML).children('root').children('name').text(); 
                        pData.pic=$(dataXML).children('root').children('extend17').text(); 
                        } 
                    }); 
                })(gID,pID); 
            return new product({ 
                num:num, 
                name:pData.name, 
                ID:pID, 
                price:pData.price, 
                pic:pData.pic, 
                weight:pData.weight, 
                originalPrice:pData.originalPrice, 
                }); 
        } 
    var cartCookie=$.cookies.get('productItem');//cookie的全局变量=>'商品ID|数量,商品ID|数量' 
    //alert(mockCookie); 
     
    var productCollection=function(){//商品搜集类 
            var products=[]; 
            var hasOne=function(productObj){ 
                var isOne=0; 
                for(var i=0;i                    if(products[i].getID()==productObj.getID()){ 
                        isOne=1; 
                        break; 
                        } 
                    } 
                return isOne; 
                } 
              var initProduct 
            /********Initial products array code*************/ 
                       //alert(mockCookie); 
              if(cartCookie){ 
                 initProduct=cartCookie.split(','); 
                 for(var i=0;i                   var _productTemp=initProduct[i].split('|'); 
                   var _proObj=new makeProductObj(4,parseInt(_productTemp[0]),parseInt(_productTemp[1])); 
                   if(hasOne(_proObj)!=1){ 
                    products.push(_proObj); 
                   } 
                 } 
                          } 
            /*******Initial products array code*************/ 
             
            this.addProduct=function(productObj){//添加商品 
                   if(hasOne(productObj)!=1){ 
                        products.push(productObj); 
                    } 
                } 
            this.delProduct=function(productObj){//删除商品 
                var _tempProducts=[]; 
                for(var i=0;i                    if(products[i].getID()!==productObj.getID()){ 
                        //console.log(products[i].getID()); 
                        _tempProducts.push(products[i]); 
                        } 
                    } 
                    products=_tempProducts; 
                }//del 
            this.setNumByPid=function(pID,newNum){//设置商品数量 
                    for(var k=0;k                        if(products[k].getID()==pID){ 
                            products[k].setNum(newNum); 
                            break; 
                            } 
                        } 
                } 
            this.getProductById=function(pID){//pID为商品的ID，获得商品对象 
for(var j=0;j                                                                                                                 break;
                                                                                                                                                                            . ney=function(){//Get the total price of all goods
          var _needMoney=0;
            for(var k=0;k                                                                                                                                                                                                                                                 getNeedMoney                                                                                               Shopping cart class, productCollection is the delegate object
          var _productCollection='';
        var _nowCollection='';
                 _productCollection=collection; _productCollection; //Dynamic collection object
      _this.setTemp();
          }
                                                                                                                                  
                                                                                                        using using   if(!_productCollection)                                    ‐ ‐ ’s           ‐ ‐ ‐                                                                                        'Please specify the collection object first!'); ;i++){
_this.temp[i]=[];
                                                              This.delProduct=function(pID){//Delete a single product pID->ID of the product No.
             var needProduct=_nowCollection.getProductById(pID); 
                                           Product); Number of items, pID-> Product ID
                                                                                                                                  pID->Product ID
                var productObj =_nowCollection.getProductById(pID);
                                                                   return productObj.                             var _money=_nowCollection.getNeedMoney();                                                                  =function(pID){//Get the total amount of a single product
                                                                                                                                      throw new Error('No such product');
var _totalMoney=_needProduct.getTotal();
                                                                                       throw new Error('Error, this method must be implemented in the subclass'); this.bindEvent=function(){//Bind event function
throw new Error('Error, this method must be implemented in the subclass');
                                                                                                                                            .​ ​ _this.renderCart ();
                                                                                                                                                                          bindEvent() Collection; (){
                //alert('test');                                                             Object'); #&*/
                                                                                use using using ‐ ‐ ‐             ‐ ‐                  ;this.getNewCollection().getProducts().length;i++){
var _productEach=this.getNewCollection().getProducts()[i];                                     _content+='

'+_productEach.getName()+' $'+_productEach.getOriginalprice()+' $'+_productEach.getPrice()+' '+_productEach.getWeight()+'Kg - '+_productEach.num+' + $'+_productEach.getTotal()+' Delete '; 
                                } 
                            //document.write(_content); 
                            //alert(_content); 
                            $('#checkCart').find('tr').eq(0).after(_content);//渲染面板 
                            $('.step_total').find('.step_total_right').children('span').html('$'+cartTest.getTotalMoney()); 
                            /**popBoxCount**/ 
                    }//renderCart 
                    cartTest.bindEvent=function(){ 
                                    var _this=this; 
                                    //alert($('#'+win1.ID).find('.cartList').eq(0).html()); 
                                    $('#checkCart').find('.cartList').each(function(index){ 
                                            var _each=$(this); 
                                            _each.find('td:last').css('cursor','pointer').click(function(){ 
                                                //alert('删除'); 
                                                var _tempThis=$(this); 
                                                _this.delProduct($(this).parents('tr').find('td:first').find('input[type=hidden]').val()); 
                                                $(this).parents('tr').remove(); 
                                                /*******Recalculate the total amount of the item*******/ 
                                                $('.step_total').find('.step_total_right').children('span').html('$'+_this.getTotalMoney()); 
                                                /*******Recalculate the total amount of the item*******/ 
                                                });//click删除商品 
                                             
                                            _each.children('td[class=numJia]').css('cursor','pointer').click(function(){ 
                                                    var _jiaThis=$(this); 
                                                    //alert($(this).parents('tr').parents('table').find('input[type=hidden]').val()); 
                                                    _this.setNumByPid($(this).parents('tr').find('td:first').find('input[type=hidden]').val(),_this.getCurrentNumByPid($(this).parents('tr').find('td:first').find('input[type=hidden]').val())+1); 
                                                    //alert(_jiaThis.parents('td').siblings('td[class=nowNum]').children('input').val()); 
                                                    _jiaThis.siblings('td[class=nowNum]').html( 
                                                        _this.getCurrentNumByPid(_jiaThis.parents('tr').find('td:first').find('input[type=hidden]').val()) 
                                                    ); 
                                                    /***********Recalculate the total amount of a certain item***********/ 
                                                    _jiaThis.siblings('td[class=eachTotal]').children('span').html('$'+_this.getTotalMoneyByPid(_jiaThis.parents('tr').find('td:first').find('input[type=hidden]').val())); 
                                                    /***********Recalculate the total amount of a certain item***********/ 
                                                     
                                                    /*******Recalculate the total amount of the item*******/ 
                                                    $('.step_total').find('.step_total_right').children('span').html('$'+_this.getTotalMoney()); 
                                                    /*******Recalculate the total amount of the item*******/ 
                                                });//click增加商品数量 
                                            _each.children('td[class=numJian]').css('cursor','pointer').click(function(){ 
                                                    var _jianThis=$(this); 
                                                    if(_this.getCurrentNumByPid($(this).parents('tr').find('td:first').find('input[type=hidden]').val())>1){ 
                                                        _this.setNumByPid($(this).parents('tr').find('td:first').find('input[type=hidden]').val(),_this.getCurrentNumByPid($(this).parents('tr').find('td:first').find('input[type=hidden]').val())-1); 
                                                        _jianThis.siblings('td[class=nowNum]').html( 
                                                        _this.getCurrentNumByPid($(this).parents('tr').find('td:first').find('input[type=hidden]').val()) 
                                                    ); 
                                                    /***********Recalculate the total amount of a certain item***********/ 
                                                    _jianThis.siblings('td[class=eachTotal]').children('span').html('$'+_this.getTotalMoneyByPid(_jianThis.parents('tr').find('td:first').find('input[type=hidden]').val())); 
                                                    /***********Recalculate the total amount of a certain item***********/ 
                                                     
/*******Recalculate the total amount of the item*******/                                                                                                 /*******Recalculate the total amount of the item*******/
                                                                                                                                                                 cartTest.touchOff(); //Trigger
                                                                           Window) .unload (function () {// When leaving the page,
// Alert ('Dog head, "; tproducts ();
// console .log(_products.length);
                                                                                                   for(var i=0;i<_products.length>                                                                    '|'+_products[i].num+',';
                                          }
                            _cartCookie=_cartCookie.substring(0,_cartCookie.length-1); 
                            //alert(_cartCookie); 
                            //alert(_cuntNum); 
                            //alert(_countNum); 
                            $.cookies.set('productItem',_cartCookie);//设置cookie 
                            $.cookies.set('countNum',_countNum);//设置量的cookie 
                        }); 
                         
                        $('#btn').click(function(){ 
                            /******************If no product is selected return*****************/ 
                            var _listProducts=cartTest.getNewCollection().getProducts(); 
                            if(_listProducts.length                                    alert('Please select products!'); 
                                    return; 
                                } 
                            window.location.href="http://www.php1.cn/">                         }); 
                 
            } 
    /***********************Shopping Cart Category****************************** ********/ 
     
    /******************Instantiated Object*******************/  
    var productCollections= new productCollection(); 
    var cartTest=new cart(); 
    cartTest.setCollection(productCollections); 
    new shoppingTrolley();