Function zip

zip<A, const B>(
optionalA: Optional<A>,
optionalB: Optional<B>,
): Optional<readonly [A, B]>
Combines two Optional values into a single Optional containing a tuple. If either Optional is None, returns None.
Type Parameters
- A
  The value type of the first Optional.
- const B
  The value type of the second Optional.
Parameters
- optionalA: Optional<A>
  The first Optional.
- optionalB: Optional<B>
  The second Optional.
Returns Optional<readonly [A, B]>
An Optional containing a tuple of both values, or None.
Example
```
const zipped = Optional.zip(Optional.some('left'), Optional.some(1));

assert.ok(Optional.isSome(zipped));
if (Optional.isSome(zipped)) {
  const expected: readonly [string, number] = ['left', 1];
  assert.deepStrictEqual(zipped.value, expected);
}

const missing = Optional.zip(
  Optional.some('value'),
  Optional.none as Optional<number>,
);

assert.deepStrictEqual(missing, Optional.none);
```
- Defined in src/functional/optional.mts:652