Typescript: Use `enum` values as `type`

Question

I would like to use following enum's values:

export enum GenFormats {
    SHORT_LOWER = 'm/f', SHORT_UPPER = 'M/F', FULL = 'Male/Female'
};

as type given below:

export interface IGenderOptions {
    format: 'm/f' | 'M/F' | 'Male/Female'
};

by using Type extraction/definition something like:

{{some type cast/logic}}<GenFormats>    // Outputs: 'm/f' | 'M/F' | 'Male/Female'

Updated Question:

Here is my code:

export enum EGenderFormats {
    SHORT_LOWER = 'm/f', SHORT_UPPER = 'M/F', FULL = 'Male/Female'
};

export interface IGenderFormats {
    SHORT_LOWER: 'm/f'; SHORT_UPPER: 'M/F'; FULL: 'Male/Female';
};

export interface IGenderOptions {
    format: IGenderFormats[keyof IGenderFormats]
};

const DEFAULTS: IGenderOptions = {
    format: EGenderFormats.FULL
};

My question is, how can I use single entity either enum EGenderFormats or interface IGenderFormats instead of both?

I am using Typescript 3.2.2

Thanks

Answer 1

You can use the Enum as a type:

export enum EGenderFormats {
  SHORT_LOWER = "m/f",
  SHORT_UPPER = "M/F",
  FULL = "Male/Female"
}

type SGenderOptions = "m/f" | "M/F" | "Male/Female"

export interface IGenderOptions {
  format: EGenderFormats | SGenderOptions;
}

const DEFAULTS: IGenderOptions = {
  format: EGenderFormats.FULL
};

const OTHER_DEFAULTS: IGenderOptions = {
  format: "M/F"
};