Javascript 如何使用实现接口制作Typescript枚举

如何使用实现接口制作Typescript枚举

我当前有2个枚举

所有

enum ENNAME

键应仅包括of

enum POSTAG

键

export enum POSTAG
{
    BAD = 0x80000000,
    D_A = 0x40000000,
    D_B = 0x20000000,
    D_C = 0x10000000,
}

export enum ENNAME
{
    D_A = 'a',
    D_B = 'b',
    D_C = 'c',
}

---

有没有办法做这样的东西

export interface ENNAME
{
    [k: keyof POSTAG]: string,
}

---

无法创建

枚举

扩展

接口

。最好是设置一些类型的编译时检查，以便在出错时生成警告，例如：

interface ENNAMEInterface extends Record<Exclude<keyof typeof POSTAG, "BAD">, string> { }
type VerifyExtends<T, U extends T> = true
type VerifyENNAME = VerifyExtends<ENNAMEInterface, typeof ENNAME>; // okay

希望有帮助。祝你好运

export enum ENNAME {
  D_A = 'a',
  D_B = 'b',
  // oops, D_C is missing 
}

type VerifyENNAME = VerifyExtends<ENNAMEInterface, typeof ENNAME>; // error
//                                                 ~~~~~~~~~~~~~
//  Property 'D_C' is missing in type 'typeof ENNAME' but required in type 'ENNAMEInterface'.