前端js获取主机ip

function getLocalIP() { window.RTCPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;

if (window.RTCPeerConnection) {
    const pc = new RTCPeerConnection({iceServers: []});
    pc.createDataChannel('');
    pc.createOffer(pc.setLocalDescription.bind(pc), () => {});

    pc.onicecandidate = (ice) => {
        if (ice && ice.candidate && ice.candidate.candidate) {
            const myIP = /([0-9]{1,3}(\.[0-9]{1,3}){3})/.exec(ice.candidate.candidate)[1];
            console.log('My IP:', myIP);
            pc.close();
        }
    };
}

}

getLocalIP();