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

Question

RepoPilot · Accepted Answer

Yes, there is a `portNumbers()` helper function. It generates port numbers in a specified range that can be passed to `getPort()` as preferred ports to try [index.js:L169-L194].

The function signature takes two parameters:
- **from**: The first port of the range (must be between 1024 and 65535)
- **to**: The last port of the range (must be between 1024 and 65535 and greater than `from`)

It returns an `Iterable` of port numbers in that range [index.d.ts:L66-L82].

Here's how to use it:

```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
```

Internally, the `portNumbers()` function uses a generator function to yield ports sequentially from the `from` value up to and including the `to` value [index.js:L182-L186].

FOLLOW_UPS:
- What validation does portNumbers perform on inputs?
- How does getPort handle the iterable from portNumbers?
- Can you exclude ports from the generated range?