打字稿枚举扩展未定义的值

Question

我正在尝试扩展 typescript 中的现有枚举。打字时看起来像工作，但扩展枚举成员的值未定义。

我正在使用 node.js 8.0.0 和 tsc 2.4.2

--- ecategorytype.ts ---

export enum eCategoryType {
    generic = 'generic',

    resources = 'resources',
    friendGroup = 'friendGroup'
}

--- 枚举扩展.ts ---

import eCategoryType from './ecategorytype';

declare module './ecategorytype' {
    export enum eCategoryType {
        classGroup = 'classGroup',
        testGroup = 'testGroup'
    }
}

--- 用法---

import eCategoryType from '../models/category/ecategorytype';
import '../models/category/enumextend';
console.log(eCategoryType.friendGroup);
console.log(eCategoryType.classGroup);
console.log(eCategoryType.testGroup);

--- 枚举扩展.d.ts ---

declare module './ecategorytype' {
    enum eCategoryType {
        classGroup = "classGroup",
        testGroup = "testGroup",
    }
}
export {};

--- 枚举扩展.js ---

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
//# sourceMappingURL=typeext.js.map

--- 预期的控制台输出 ----

friendGroup
testGroup
classGroup

---现实控制台输出---

friendGroup
undefined
undefined

---

请问有什么问题吗？

Answer 1

你导入错了：

import eCategoryType from '../models/category/ecategorytype';

应该是：

import {eCategoryType} from '../models/category/ecategorytype';