Typescript: constants in an interface

Question

How do I place a constant in an Interface in typescript. Like in java it is:

interface OlympicMedal {
  static final String GOLD = \"Gold\";
  static final S         


        

Answer 1

There is a workaround for having constants in a interface: define both the module and the interface with the same name.

In the following, the interface declaration will merge with the module, so that OlympicMedal becomes a value, namespace, and type. This might be what you want.

module OlympicMedal {
    export const GOLD = "Gold";
    export const SILVER = "Silver";
}

interface OlympicMedal /* extends What_you_need */ {
    myMethod(input: any): any;
}

This works with Typescript 2.x