JSON字串和js物件轉換

var data = {
    "name":"yfs",
    "age":28,
    "boy":true,
    "language":["chinese", "english"],
    "address":{
        "provice":"shanxi",
        "city":"xian"
    }
};

var jsonString = JSON.stringify(data);
console.log(jsonString);
console.log(typeof(jsonString));//结果：
 {"name":"yfs","age":28,"boy":true,"language":["chinese","english"],"address":{"p
rovice":"shanxi","city":"xian"}}//类型：stringvar a = '{"name":"yfs","age":28,"boy":true,"language":["chinese","english"],"address":{"p
rovice":"shanxi","city":"xian"}}';