function mkdtemp
Usage in Deno
```typescript import { mkdtemp } from "node:node__fs.d.ts"; ```
mkdtemp(prefix: string,options: EncodingOption,callback: (err: ErrnoException | null,folder: string,) => void,): void
Creates a unique temporary directory.
Generates six random characters to be appended behind a required `prefix` to create a unique temporary directory. Due to platform
inconsistencies, avoid trailing `X` characters in `prefix`. Some platforms,
notably the BSDs, can return more than six random characters, and replace
trailing `X` characters in `prefix` with random characters.
The created directory path is passed as a string to the callback's second
parameter.
The optional `options` argument can be a string specifying an encoding, or an
object with an `encoding` property specifying the character encoding to use.
```js
import { mkdtemp } from 'node:fs';
import { join } from 'node:path';
import { tmpdir } from 'node:os';
mkdtemp(join(tmpdir(), 'foo-'), (err, directory) => {
if (err) throw err;
console.log(directory);
// Prints: /tmp/foo-itXde2 or C:\Users\...\AppData\Local\Temp\foo-itXde2
});
```
The `fs.mkdtemp()` method will append the six randomly selected characters
directly to the `prefix` string. For instance, given a directory `/tmp`, if the
intention is to create a temporary directory _within_`/tmp`, the `prefix`must end with a trailing platform-specific path separator
(`import { sep } from 'node:path'`).
```js
import { tmpdir } from 'node:os';
import { mkdtemp } from 'node:fs';
// The parent directory for the new temporary directory
const tmpDir = tmpdir();
// This method is *INCORRECT*:
mkdtemp(tmpDir, (err, directory) => {
if (err) throw err;
console.log(directory);
// Will print something similar to `/tmpabc123`.
// A new temporary directory is created at the file system root
// rather than *within* the /tmp directory.
});
// This method is *CORRECT*:
import { sep } from 'node:path';
mkdtemp(`${tmpDir}${sep}`, (err, directory) => {
if (err) throw err;
console.log(directory);
// Will print something similar to `/tmp/abc123`.
// A new temporary directory is created within
// the /tmp directory.
});
```
options: EncodingOption
void
mkdtemp(prefix: string,options: "buffer" | { encoding: "buffer"; },callback: (err: ErrnoException | null,folder: Buffer,) => void,): void
Asynchronously creates a unique temporary directory.
Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
void
mkdtemp(prefix: string,options: EncodingOption,callback: (err: ErrnoException | null,folder: string | Buffer,) => void,): void
Asynchronously creates a unique temporary directory.
Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
options: EncodingOption
The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
void