dnsPromises.resolveNaptr(hostname)

新增于: v10.6.0

使用 DNS 协议解析基于正则表达式的记录（NAPTR 记录）以获取 hostname。成功时，Promise 会被解析为一个包含以下属性的对象数组：

【Uses the DNS protocol to resolve regular expression-based records (NAPTR records) for the hostname. On success, the Promise is resolved with an array of objects with the following properties:】

  • flags
  • service
  • regexp
  • replacement
  • order
  • preference
{
  flags: 's',
  service: 'SIP+D2U',
  regexp: '',
  replacement: '_sip._udp.example.com',
  order: 30,
  preference: 100
}