如何用js获取ip地址

async function getIP() {
  const configuration = {
    iceServers: [
      {
        urls: [\'stun:stun.l.google.com:19302\']
      }
    ]
  };
  const peerConnection = new RTCPeerConnection(configuration);
  const iceCandidate = await new Promise((resolve) => {
    peerConnection.onicecandidate = (e) => {
      if (e.candidate && e.candidate.type === \'srflx\') {
        resolve(e.candidate.address);
      }
    };
  });
  peerConnection.close();
  return iceCandidate;
}