如何访问父类（打字稿）枚举

Question

我们的应用是建立在阶级，不模块（使参考下面的问题和答案：How do I declare a public enum in typescript?）。

下面的代码结构的一个例子：

// GrandParent.ts 
enum DAYS {SUNDAY,MONDAY, TUESDAY, WEDNESDAY, THURSDAY,FRIDAY, SATURDAY}; 
class GrandParent { 
    // Some super cool stuff 
} 
export = GrandParent 

//Parent.ts 
import GrandParent = require('./GrandParent'); 
class Parent extends GrandParent { 
    // Some things even cooler 
} 
export = Parent 

// Child.ts 
import Parent = require('./Parent'); 
class Child extends Parent { 
    getMonday():DAYS{   //Could not find symbol 'DAYS' 
     return DAYS.MONDAY; 
    } 
} 
export = Child 

当我尝试transpile代码中，我得到webstorm以下错误：错误TS2095：找不到符号“日”。

有没有办法访问enumGrandParent表格Child？

Answer 1

当你说export =时，它是的声明，只有从文件中导出的东西。

如果你要导出从一个模块不止一两件事，使用多个export声明：

// GrandParent.ts 
export enum DAYS {SUNDAY,MONDAY, TUESDAY, WEDNESDAY, THURSDAY,FRIDAY, SATURDAY}; 
export class GrandParent { 
    // Some super cool stuff 
} 

//Parent.ts 
import GrandParent = require('./GrandParent'); 
class Parent extends GrandParent.GrandParent { 
    // Some things even cooler 
} 
var x = GrandParent.DAYS.MONDAY; 
export = Parent 

Answer 2

这里是我做的

module portal{ 

enum DAYS {SUNDAY,MONDAY, TUESDAY, WEDNESDAY, THURSDAY,FRIDAY, SATURDAY}; 


} 


module portal.logic{ 

//now in this module you can access enum of parent module no need for require 

    export class GrandParent { 
// Some super cool stuff 
} 


class Parent extends GrandParent.GrandParent { 
// Some things even cooler 
} 
}