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getSystemErrorName - util - Node documentation
function getSystemErrorName

Usage in Deno

import { getSystemErrorName } from "node:util";
getSystemErrorName(err: number): string

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
});

Parameters

err: number

Return Type

string