Function empty

empty(dimension: 2 | 3 | 4): ChalkboardVector
Initializes an empty vector.
Parameters
- dimension: 2 | 3 | 4
  The dimension of the vector, which can be 2, 3, or 4
Returns ChalkboardVector
Example
```
// Returns (null, null, null)
const v = Chalkboard.vect.empty(3);
```
- Defined in Chalkboard.vect.ts:334