jquery 对 cookie存储 json格式的简单操作

$(function () {
var wowohistory = $.JSONCookie("wowohistory");//读取json格式cookie
var id = $("#selectgoodsid").val();
var img = $("#gooddefimg").val();
var name = $("#productName").text();
if (typeof (wowohistory.goods) == "undefined") {//判断cookie是否存在
wowohistory = { "goods": [
{ "goodid": id, "img": img, "name": name}]
};
$.JSONCookie("wowohistory", wowohistory, { path: '/', expires: 20 });//存储json格式cookie
}
else {
var flag = false;
for (var i = 0; i < wowohistory.goods.length; i++) {
if (wowohistory.goods[i].goodid == id) {
flag = true; break;
}
}
if (!flag) {
if (wowohistory.goods.length >= 10) {
//delete wowohistory.goods[0];//只能致空，没有删除
wowohistory.goods.splice(0,1);//删除第一行
}
var tmp = { "goodid": id, "img": img, "name": name };
wowohistory.goods.push(tmp);//添加
$.JSONCookie("wowohistory", wowohistory, { path: '/', expires: 20 });//保存
}
}
})

function clearhistory() {
$.cookie("wowohistory", null, { path: '/' });//删除cookie
$("#wowohistoryshow").css("display", "none");
}