js对象.数组 数组对象转json字符串

数组对象转换为json字符串JSON.stringify()

代码案例:

let arrObj=[{name:"name1",age:"18"},{name:"name2",age:"20"}]console.log("Json字符串",JSON.stringify(arrObj))

将数组对象变成json字符串

var jsonData="";for(var s in newData){jsonData+='"'+s+'"'+":"+JSON.stringify(newData[s])+", ";}console.log(jsonData);

js对象与字符串相互转换

const obj = {id: 0,name: '张三',age: 12}const objToStr = JSON.stringify(obj)console.log('obj:', obj)console.log('objToStr:', objToStr)```![在这里插入图片描述](https://img-/0309160343455.png#pic_center)2. json字符串转为对象3. `const str = '{"id":0,"name":"张三","age":12}'const strToObj = JSON.parse(str)console.log('str:', str)console.log('strToObj:', strToObj)`![在这里插入图片描述](https://img-/0309160430587.png#pic_center)