The problem of converting node json to xml

use xml2js to convert json to xml, when a null value exists, the conversion fails

related codes

const  xml2js = require("xml2js");
let obj = {name: "Super", Surname: "Man", age: 23,dd:"",ll:""};
let  builder = new xml2js.Builder();
let xml = builder.buildObject(obj);
console.log( xml);

output result:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<root>
  <name>Super</name>
  <Surname>Man</Surname>
  <age>23</age>
  <dd/>
  <ll/>
</root>

there are only half of dd and ll here. Is that how everyone deals with them?

Nov.29,2021

isn't this a success? < dd/ > and < dd > < / dd > don't mean the same thing?

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b389d5-2c135.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b389d5-2c135.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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