A second argument in Promise.all([...]) that returns a Record breaks the return signature #34924
Description
TypeScript Version:
3.7.2
Search Terms:
Promise.all, Record
Code
interface MoviesResponse {
movies: [];
}
type CharactersResponse = Record<number, any>;
const getMovies = async (): Promise<MoviesResponse> => ({
movies: [],
})
const getCharacters = async (): Promise<CharactersResponse> => ({
});
(async () => {
const [{ movies }, characters] = await Promise.all([getMovies(), getCharacters()]);
console.log(movies, characters);
})();Expected behavior:
The first variable in the deconstructed array should be correctly typed as MoviesResponse, rather than CharactersResponse. This worked in 3.6.4.
Actual behavior:
Both variables in the deconstructed array are inferred to be CharactersResponse. So when I try to deconstruct the first argument doing { movies }, it's an invalid destructuring.
Interestingly, if we update CharactersResponse to not be a map type, the problem goes away, e.g:
interface CharactersResponse {
characters: any[];
}
const getCharacters = async (): Promise<CharactersResponse> => ({
characters: [],
});
Playground Link:
Related Issues:
None found.