How to import an Enum

Issue

I have created an enum, but I am having trouble importing and using the enum in VS15.

This is the enum which is contained in enums.ts:

enum EntityStatus {
     New = 0,
     Active = 1,
     Archived = 2,
     Trashed = 3,
     Deleted = 4
}

Visual Studio sees this enum without even importing and so does not give a compile time error. But at runtime, an error is thrown

 Cannot read property 'Archived' of undefined.

So now I try to import it like I import other classes:

 import {EntityStatus} from "../../core/enums";

Visual Studio now gives a compile time error:

 "...enums is not a module ..."

So how do I import the enum?

Solution

I was missing the export keyword:

 export enum EntityStatus {
      New = 0,
      Active = 1,
      Archived = 2,
      Trashed = 3,
      Deleted = 4
 }

Then it worked as expected. (But see @Martin Braun's comment below)

Answered By - Greg Gum