原生JS如何获取本地ip地址

如何利用原生JavaScript获取本地ip地址，下面web建站小编给大家简单介绍一下具体实现代码！

具体代码如下：

function getIP() {
  window.RTCPeerConnection = window.RTCPeerConnection || window.webkitRTCPeerConnection || window.mozRTCPeerConnection;
  var pc = new RTCPeerConnection({iceServers: []}), noop = function() {};
  pc.createDataChannel("");
  pc.createOffer(pc.setLocalDescription.bind(pc), noop);
  pc.onicecandidate = function(ice) {
    if (ice && ice.candidate && ice.candidate.candidate) {
      var s = ice.candidate.candidate.split(' ')[0].split(' ')[4];
      return s;
    }
  };
}