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> Also note that `Return<User>` should be just `User` if you prefer to specify the return type explicitly. No? first_user = data[0] assigns User | undefined to
by whilenot-dev 1y ago
> Also note that `Return<User>` should be just `User` if you prefer to specify the return type explicitly.
No? first_user = data[0] assigns User | undefined to first_user, since the list isn't guaranteed to be non-empty. I expect Return to be implemented as type Return<T> = T | undefined, so Return<User> makes sense.
- uallo 1y agoYou are correct if `noUncheckedIndexedAccess` is enabled. It is off by default (which is a pity, really). I assumed `Return<User>` was a mistake, not a custom type as you suggest. But your interpretation seems more likely anyway.
- devjab 1y agoBoth score 7 now though. This scores 6: function a(b) { return b[0]; } This scores 3: const a = (a) => a;