Typed constants with Record in Typescript

When I define types in Typescript, I also define a list of valid options as an object so that I can reference it in the rest of my code. A type definition for a currency would for example with a list would look like the following.

export type Currency = 'EUR' | 'USD' | 'GBP';

export const Currencies = {
  EUR: 'EUR',
  USD: 'USD',
  GBP: 'GBP',
};

In the rest of my code I can then use Currencies.EUR and therefore have an autocomplete for the available currencies.

The only "danger" now is that I add another invalid Type to Currencies or remove one currency from the Currency type and forget to remove it from Currencies. Thanks to Record we can also prevent those issues. The final list would look like the following.

export const Currencies: Record<Currency, Currency> = {
  EUR: 'EUR',
  USD: 'USD',
  GBP: 'GBP',
};