本文实例讲述了jquery.COOKIE实现的客户端购物车操作。分享给大家供大家参考,具体如下:
//购物车 var Cart = function () { this.Count = 0; this.Total = 0; this.Items = new Array(); }; //购物车集合对象 var CartItem = function () { this.Id = 0; this.Name = ""; this.Count = 0; this.Price = 0; }; //购物车操作 var CartHelper = function () { this.COOKIEName = "yxhCart"; this.Clear = function () { var cart = new Cart(); this.Save(cart); return cart; }; //向购物车添加 this.Add = function (id, name, count, price) { var cart = this.Read(); var index = this.Find(id); //如果ID已存在,覆盖数量 if (index > -1) { cart.Total -= (((cart.Items[index].Count * 100) * (cart.Items[index].Price * 100)) / 10000); cart.Items[index].Count = count; cart.Total += (((cart.Items[index].Count * 100) * (cart.Items[index].Price * 100)) / 10000); } else { var item = new CartItem(); item.Id = id; item.Name = name; item.Count = count; item.Price = price; cart.Items.push(item); cart.Count++; cart.Total += (((cart.Items[index].Count * 100) * (cart.Items[index].Price * 100)) / 10000); } this.Save(cart); return cart; }; //改变数量 this.Change = function (id, count) { var cart = this.Read(); var index = this.Find(id); cart.Items[index].Count = count; this.Save(cart); return cart; }; //移出购物车 this.Del = function (id) { var cart = this.Read(); var index = this.Find(id); if (index > -1) { var item = cart.Items[index]; cart.Count--; cart.Total = cart.Total - (((item.Count * 100) * (item.Price * 100)) / 10000); cart.Items.splice(index, 1); this.Save(cart); } return cart; }; //根据ID查找 this.Find = function (id) { var cart = this.Read(); var index = -1; for (var i = 0; i
希望本文所述对大家jQuery程序设计有所帮助。