function toASCII
Usage in Deno
```typescript import { toASCII } from "node:node__punycode.d.ts"; ```
toASCII(domain: string): string
The `punycode.toASCII()` method converts a Unicode string representing an
Internationalized Domain Name to [Punycode](https://tools.ietf.org/html/rfc3492). Only the non-ASCII parts of the
domain name will be converted. Calling `punycode.toASCII()` on a string that
already only contains ASCII characters will have no effect.
```js
// encode domain names
punycode.toASCII('mañana.com'); // 'xn--maana-pta.com'
punycode.toASCII('☃-⌘.com'); // 'xn----dqo34k.com'
punycode.toASCII('example.com'); // 'example.com'
```
string