javascript - typescript 不需要扩展接口(interface)

Question

我有两个接口(interface)；

interface ISuccessResponse {
    Success: boolean;
    Message: string;
}

和

interface IAppVersion extends ISuccessResponse {
    OSVersionStatus: number;
    LatestVersion: string;
}

我想将 ISuccessResponse 接口(interface)扩展为不需要；我可以覆盖它，但还有其他选择吗？

interface IAppVersion {
    OSVersionStatus: number;
    LatestVersion: string;
    Success?: boolean;
    Message?: string;
}

我不想这样做。

Answer 1

有点晚了，但是 Typescript 2.1 引入了 Partial<T>输入允许您要求的内容:

interface ISuccessResponse {
    Success: boolean;
    Message: string;
}

interface IAppVersion extends Partial<ISuccessResponse> {
    OSVersionStatus: number;
    LatestVersion: string;
}

declare const version: IAppVersion;
version.Message // Type is string | undefined