Property fov & aspect does not exist on type 'Camera' for Typescript

[nazrinnoorzan]

Why I got error when I want to change the state.camera fov & aspect inside Typescript? See screenshot below.

It says
Property 'fov' does not exist on type 'Camera'.
Property 'fov' does not exist on type 'OrthographicCamera'.ts(2339)
Property 'aspect' does not exist on type 'Camera'.
Property 'aspect' does not exist on type 'OrthographicCamera'.ts(2339)

But if I console.log state.camera, I do see the fov & aspect properties.

[lighthaus205]

Using typescript, the following worked for me, adding a type definition when retrieving the camera from useThree:

const { camera }: { camera: THREE.PerspectiveCamera } = useThree();

Or you write it like this:

const { camera } = useThree();
const perspectiveCamera = camera as THREE.PerspectiveCamera;