util.getSystemErrorName(err)

• err <number>

• 返回:<string>

  \Returns: <string>

返回来自 Node.js API 的数字错误码的字符串名称。错误码和错误名称之间的映射是平台相关的。常见错误名称见 常见系统错误。

\Returns the string name for a numeric error code that comes from a Node.js API. The mapping between error codes and error names is platform-dependent. See Common System Errors for the names of common errors.

fs.access('file/that/does/not/exist', (err) => {
 const name = util.getSystemErrorName(err.errno);
 console.error(name); // ENOENT
}); 拷贝