JSON字符串和js对象转换

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON

js数据类型：

字符串、数字、布尔、数组、对象、Null、Undefined

js Object

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

JSON.stringify();

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：string var a = '{"name":"yfs","age":28,"boy":true,"language":["chinese","english"],"address":{"p rovice":"shanxi","city":"xian"}}';

JSON.parse();

var jsObject = JSON.parse(jsonString); console.log(jsObject); console.log(typeof(jsObject)); //结果： { name: 'yfs', age: 28, boy: true, language: [ 'chinese', 'english' ], address: { provice: 'shanxi', city: 'xian' } } //类型：object