js获取手机上的ip地址

function getLocalIPs(callback) {
    var ips = [];
    var RTCPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
    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('Your IP addresses are: ', ips);
});

fetch('https://api.ipify.org?format=json')
    .then(response => response.json())
    .then(data => console.log('Your public IP address is:', data.ip));