JS基础之JSON对象

对象转JSON字符串

JSON.stringify(value,replacer,space)

value:要转换的JS对象

replacer:(可选)用于过滤和转换结果的函数或数组

space:(可选)指定缩进量

// 创建JS对象
let date = {
    name:"张三",
    age:19,
    hobbies:["run","read"]
}
console.log(date)

// 将对象转换成JSON格式
let json_date = JSON.stringify(date,null,4)
console.log(json_date)

JSON转JS对象

JSON.parse()

参数为json对象

let date = {
    name:"张三",
    age:19,
    hobbies:["run","read"]
}
console.log(date)
let json_date = JSON.stringify(date,null,4)
console.log(JSON.parse(json_date))
console.log(typeof (JSON.parse(json_date)))

le.log(typeof (JSON.parse(json_date)))

![image-20240221203920603](https://img-blog.csdnimg.cn/img_convert/c047168b98ed0d38a3a203c34d14f01a.png)