# operator * method Null safety

- num factor

Scale this point by `factor`

as if it were a vector.

*Important* *Note*: This function accepts a `num`

as its argument only so
that you can scale `Point<double>`

objects by an `int`

factor. Because the
`*`

operator always returns the same type of `Point`

as it is called on,
passing in a double `factor`

on a `Point<int>`

*causes* *a*
*runtime* *error*.

## Implementation

```
Point<T> operator *(num /*T|int*/ factor) {
return Point<T>((x * factor) as T, (y * factor) as T);
}
```