json对象和json字符串之间的转化
- json字符串----->json对象
var jsonStr = '{"name":"zhangsan","age":23,"email":"chentging@aliyun.com"}';
var json = JSON.parse(jsonStr);
console.log(json);
var jsonStr = '{"name":"zhangsan","age":23,"email":"chentging@aliyun.com"}';
var json = eval ("(" + jsonStr + ")");
console.log(json);
- 使用jQuery插件jQuery.parseJSON()
var jsonStr = '{"name":"zhangsan","age":23,"email":"chentging@aliyun.com"}';
var json = jQuery.parseJSON(jsonStr);
console.log(json);
- json对象------>json字符串
var json = {name: "zhangsan", age: 23, email: "chentging@aliyun.com"};
var jsonStr = JSON.stringify(json);
console.log(jsonStr);
- 把数据在前后端之间传递,需要把json对象转换为json字符串