Function atMay

atMay(index: number): <T>(list: List.List<T>) => Option.Option<T>
Gets the value at index. It takes O(n).
Parameters
- index: number
  The position from 0 to get.
Returns <T>(list: List.List<T>) => Option.Option<T>
The element if exists.

Examples
Example
```
const nums = range(1, 6);
expect(atMay(0)(nums)).toStrictEqual(Option.some(1));
expect(atMay(4)(nums)).toStrictEqual(Option.some(5));
expect(atMay(-1)(nums)).toStrictEqual(Option.none());
expect(atMay(5)(nums)).toStrictEqual(Option.none());
```
- Defined in src/list.ts:1693