Function ensureDir

ensureDir(dir): Promise<void>
Asynchronously ensures that the directory exists, like mkdir -p.

If the directory already exists, this function does nothing. If the directory does not exist, it is created.

Requires --allow-read and --allow-write permissions.
Parameters
- dir: string | URL
  The path of the directory to ensure, as a string or URL.
Returns Promise<void>
A promise that resolves once the directory exists.
See
https://docs.deno.com/runtime/manual/basics/permissions#file-system-access for more information on Deno's permissions system.
Example: Usage
```
import { ensureDir } from "@std/fs/ensure-dir";

await ensureDir("./bar");
```
- Defined in fs/ensure_dir.ts:27