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 within a specified range.

According to the README, `portNumbers(from, to)` returns an `Iterable` for port numbers in the given range. You can pass the result directly to the `port` option of `getPort()`:

```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
```

This is useful when you want to check a specific range of ports rather than just a single preferred port or arbitrary list.

FOLLOW_UPS:
- How does portNumbers() generate the iterable internally?
- Can you combine portNumbers with the exclude option?
- What happens if all ports in range are unavailable?