Is there a helper to generate a sequence of port numbers to try?

Question

RepoPilot · Accepted Answer

Yes, there is. The `portNumbers()` helper function generates a sequence of port numbers in a given range.

According to [index.js:L169-L194], `portNumbers(from, to)` returns a generator that yields all port numbers from `from` to `to` (inclusive). It validates that both parameters are integers within the range `1024`...`65535` and that `to` is greater than or equal to `from`.

You can use it like this [readme.md:L34-L37]:

```js
import getPort, {portNumbers} from 'get-port';

console.log(await getPort({port: portNumbers(3000, 3100)}));
// Will use any port from 3000 to 3100, otherwise fall back to a random port
```

The function accepts the `port` option which can be `number | Iterable<number>` [index.d.ts:L5-L7], so it's designed to work seamlessly with iterables like the generator returned by `portNumbers()`.

FOLLOW_UPS:
- How does getPort fall back if preferred ports are unavailable?
- What happens when portNumbers receives invalid parameters?
- Can you exclude specific ports from consideration?