在和后端进行接口联调时，有时候我们需要将json对象转换成json字符串，然后将字符串做成入参传给后端，那么我们可以通过JSON.stringify()将json对象转换成字符串

    在接口请求成功时，我们需要将返回的数据进行页面渲染，而后端返回的是字符串，这时我们可以通过JSON.parse()方法将json字符串转换成json对象

var user = [{
name: "秋林",
sex: "男",
birthday: "2000"
},
{
name: "小红",
sex: "女",
birthday: "2000"
},
{
name: "松子",
sex: "男",
birthday: "2000"
}]

json对象转换json字符串

JSON.stringify(user)
var user1 = '[{"name":"秋林","sex":"男","birthday":"2000"},{"name":"小红","sex":"女","birthday":"2000"},{"name":"松子","sex":"男","birthday":"2000"}]'

json字符串转换json对象

JSON.parse(user1)
[{
name: "秋林",
sex: "男",
birthday: "2000"
},
{
name: "小红",
sex: "女",
birthday: "2000"
},
{
name: "松子",
sex: "男",
birthday: "2000"
}]

​