打字稿前置联合模板文字类型

Question

我有办法从其他带前缀的字符串类型创建文字字符串类型吗？ 最好知道没有这个想法。

type UserField = "id" | "name";
type PostField = "id" | "message" | ("author." + UserField); // Something like this?
let somePostFields: PostField[] = ["id", "message", "author.name"];

Answer 1

您可以使用允许联合类型组合的字符串插值来使用功能模板文字类型。

type UserField = "id" | "name";
type PostField = "id" | "message" | `author.${UserField}`;