How can a enum member be aliased in TypeScript?

Question

I have a below enum in TypeScript:

enum RoleTypes {
  None,
  Admin,
  SuperAdmin
}

When I run the following code:

var roleName = RoleTypes[RoleTypes.SuperAdmin];

the value of the variable roleName is SuperAdmin.

Is it possible to change it to a custom name 'Super Administrator', and how do I do this?

Answer 1

You can use a seperate object or array for this (Playground):

enum RoleTypes {
    None,
    Admin,
    SuperAdmin
}

let RoleTypesDisplay: { [index: number]: string } = {};
RoleTypesDisplay[RoleTypes.None] = "None";
RoleTypesDisplay[RoleTypes.Admin] = "Administrator";
RoleTypesDisplay[RoleTypes.SuperAdmin] = "Super Administrator";

var roleName = RoleTypesDisplay[RoleTypes.SuperAdmin];
alert(roleName);

// because RoleTypes is a number based enum that starts with 0 this is equals to 
RoleTypesDisplay = ["None", "Administrator", "Super Administrator"];

var roleName = RoleTypesDisplay[RoleTypes.SuperAdmin];
alert(roleName);