util.getSystemErrorMap()
新增于: v16.0.0, v14.17.0
返回来自 Node.js API 的可用的所有系统错误码的映射。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 a Map of all system error codes available from the 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 errorMap = util.getSystemErrorMap();
const name = errorMap.get(err.errno);
console.error(name); // ENOENT
});