인프런 커뮤니티 질문&답변

type Fruit =
  | {
      name: "apple";
      color: "red";
    }
  | {
      name: "banana";
      color: "yellow";
    }
  | {
      name: "orange";
      color: "orange";
    };

type TransformedFruit = {
  [key in Fruit as key["name"]]: `${key["name"]}:${key["color"]}`;
}[Fruit["name"]];

type tests = [
  Expect<
    Equal<TransformedFruit, "apple:red" | "banana:yellow" | "orange:orange">
  >
];

감사합니다