[TypeScript] Fetcher function doesn't respect array of keys types

[enzoferey]

With a piece of code like:

const key = `some graphql query with variables`;
const entityId = 1;

const fetcher = (key: string, entityId: number) => { ... }

const { data } = useSWR([key, entityId], fetcher);

If you now inverse the arguments of fetcher, TypeScript doesn't report a type error even though it would be receiving the wrong parameters in runtime.

[crutch12]

Bump
Any progress on this?

[shuding]

Fixed with #1477 🎉