打字稿，将接口键转换为可能的字符串值的枚举

Question

Let's pretend that I have an interface like so:

export interface MyInterface {
  keyA: string;
  keyB: number;
  keyC: boolean;
}

From this interface, I would like to dynamically create a union type that has 'keyA', 'keyB' and 'keyC' as possible values.

If I had to manually create it, it would result in something like:

export type MyType = 'keyA' | 'keyB' |'keyC';

Is that possible to achieve with Typescript?

Answer 1

尝试这个：

export type MyType = keyof MyInterface;