Is it possible to use `keyof` operator on literals instead of interfaces?

Question

I have an object literal such as the following (all properties are known at compile time):

const foo = {
  \"hello\": \"hola\"
};

If foo<

Answer 1

a bit off, while i'm finding indexer key to literals, but put it here for future reference.

const foo = {
  "hello": "hola"
};

let data: { [key in keyof typeof foo]:number} & { name: string, index: number }[] = [] as any;

data.foo = 1;
data[0] = {name:'foo', 1};