node获取本机ip

const os = require("os");

module.exports = getIp = ()=> {
    /**os.networkInterfaces() 返回一个对象，该对象包含已分配了网络地址的网络接口 */
    var interfaces = os.networkInterfaces();
    for (var devName in interfaces) {
        var iface = interfaces[devName];
        for (var i = 0; i < iface.length; i++) {
            var alias = iface[i];
            if (
                alias.family === "IPv4" &&
                alias.address !== "127.0.0.1" &&
                !alias.internal
            ) {
                return alias.address;
            }
        }
    }
}