//添加购物车
savecart: function(res) {
var that = this;
var cart = wx.getStorageSync('cart') || [];
var exist = cart.find(function (ele) {
return ele.id === res.currentTarget.dataset.id;//判断购物车内是否存在
})
if (exist){
exist.num = parseInt(exist.num)+parseInt(res.currentTarget.dataset.num);//存在增加数量
}else{
cart.push(res.currentTarget.dataset);//不存在增加种类
}
console.log(cart);
wx.setStorage({
key: 'cart',
data: cart,
success: function (res) {
//添加购物车的消息提示框
wx.showToast({
title: "加入购物车成功",
icon: "success",
durantion: 2000
})
}
})
this.setData({
hid: "hid",
})
}