How to obtain multiple pieces of data in a form field and convert them into json format

As shown in the figure, we need to obtain the data in the following two li tags and then pass it to the backend; the data format received by the backend is json, so we need to convert the information in the two li In the following format.

{recieverName:Xiaohong,recieverPhone:12341234,recieverAddress:Hunan,China},{recieverName:Xiaoming,recieverPhone:12345678,recieverAddress:Shanghai, China}

The code is as follows:

var recieverArr = [];  //全局变量
var recieverMsg = {};  //全局变量
function recieverMsgToJson(parentFormId){    //若有多个表单公用这个函数，这里需要传所属表单的ID；例如新增和修改。
  $(parentFormId + ".recieverList li").each(function(m){    //遍历每个li，当前有两个li
      var recieverAttributes = [];
      $(this).find("span").each(function(n){    //遍历每个li下的span，而每个li下有三个span
         recieverAttributes[n] = $(this).children("input").val();   //找到每个span下存放着数据的input框，并获取值存放到数组中
      });
      var recieverObj = {    //用对象来表示数据；这时对象是{recieverName:小明,recieverPhone:12345678,recieverAddress:中国上海}
         receiverName:recieverAttributes[0],
         receiverPhone:recieverAttributes[1],
         receiverAddress:recieverAttributes[2]
      };
      recieverArr.push(recieverObj);       
  });
}
recieverMsg = JSON.stringify(recieverArr).replace(/\[|]/g, '') //将数组转化为json格式
console.log(recieverMsg)
//{recieverName:小红,recieverPhone:12341234,recieverAddress:中国湖南},{recieverName:小明,recieverPhone:12345678,recieverAddress:中国上海}
  $.ajax({
    url: '',
    type: 'post',
    data: {
      receiverInfo:recieverMsg,//收件人信息
    },
    traditional:true,
    success: function(data){
      console.log(data);

    },
    error: function() {
      alert("新增订单失败")
    }
  })

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