function promises.access
Usage in Deno
```typescript import { promises } from "node:node__fs.d.ts"; ```
access(path: PathLike,mode?: number,): Promise<void>
Tests a user's permissions for the file or directory specified by `path`.
The `mode` argument is an optional integer that specifies the accessibility
checks to be performed. `mode` should be either the value `fs.constants.F_OK` or a mask consisting of the bitwise OR of any of `fs.constants.R_OK`, `fs.constants.W_OK`, and `fs.constants.X_OK`
(e.g.`fs.constants.W_OK | fs.constants.R_OK`). Check `File access constants` for
possible values of `mode`.
If the accessibility check is successful, the promise is fulfilled with no
value. If any of the accessibility checks fail, the promise is rejected
with an [Error](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) object. The following example checks if the file`/etc/passwd` can be read and
written by the current process.
```js
import { access, constants } from 'node:fs/promises';
try {
await access('/etc/passwd', constants.R_OK | constants.W_OK);
console.log('can access');
} catch {
console.error('cannot access');
}
```
Using `fsPromises.access()` to check for the accessibility of a file before
calling `fsPromises.open()` is not recommended. Doing so introduces a race
condition, since other processes may change the file's state between the two
calls. Instead, user code should open/read/write the file directly and handle
the error raised if the file is not accessible.
path: PathLike
Promise<void>
Fulfills with `undefined` upon success.