js获取公网ip 局域网ip

fetch('https://api.ipify.org?format=json')
  .then(response => response.json())
  .then(data => console.log('公网 IP:', data.ip))
  .catch(error => console.error('获取公网IP失败:', error));

function getLocalIPs(callback){
    var ips = [];
    var RTCPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection; // 兼容不同浏览器

    var pc = new RTCPeerConnection({iceServers:[]});
    pc.createDataChannel('');
    pc.onicecandidate = function(e){
        if (!e.candidate) {
            pc.close();
            callback(ips);
            return;
        }
        var ip = /^candidate:.+ (\S+) \d+ typ/.exec(e.candidate.candidate)[1];
        if (ips.indexOf(ip) == -1){
            ips.push(ip);
        }
    };
    pc.createOffer().then(function(sdp){
        pc.setLocalDescription(sdp);
    }).catch(function(e){
        console.error(e);
    });
}

getLocalIPs(function(ips){
    console.log('局域网 IP:', ips);
});