While I agree with keeping props type un-exported where possible, I don't recommend ComponentProps.
It is quite complicated type (see its declaration) and it might hit performance of type check.
Generics is not supported with typeof, and it cause weird type error if the component has generic props. (i.e. you can't ComponentProps<typeof FooComponent<T>>)
Explicit dependency to props type helps to find reference and to decouple (props) type from (component) implementation.
You can also use React.VFC to omit children from React.FC and annotate type correctly.
(I personally use function Foo() { ... } as it also supports overload when it is absolutely necessary.)
While I agree with keeping props type un-exported where possible, I don't recommend
ComponentProps.typeof, and it cause weird type error if the component has generic props. (i.e. you can'tComponentProps<typeof FooComponent<T>>)You can also use
React.VFCto omit children fromReact.FCand annotate type correctly.(I personally use
function Foo() { ... }as it also supports overload when it is absolutely necessary.)Uh, React.VFC! Good one. Didn't know that. Thx.
Wouldn't that performance hit only be on compile?