如何调用数组中的所有javascript成员函数？[node.js]

我想遍历并调用与相关联的所有成员函数“os”

原型：

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你需要这样的东西：

Object.keys(os).forEach(function (key) {
    if (typeof os[key] === 'function') {
        console.log(key, os[key]());
    }
});

---

你能回答这个问题吗？

{ endianness: [Function: getEndianness],
  hostname: [Function: getHostname],
  loadavg: [Function: getLoadAvg],
  uptime: [Function: getUptime],
  freemem: [Function: getFreeMem],
  totalmem: [Function: getTotalMem],
  cpus: [Function: getCPUs],
  type: [Function: getOSType],
  release: [Function: getOSRelease],
  networkInterfaces: [Function: getInterfaceAddresses],
  arch: [Function],
  platform: [Function],
  tmpdir: [Function],
  tmpDir: [Function],
  getNetworkInterfaces: [Function: deprecated],
  EOL: '\r\n' }

Object.keys(os).forEach(function (key) {
    if (typeof os[key] === 'function') {
        console.log(key, os[key]());
    }
});