Sacrificing type safety versus retaining type safety

I'm curious to know what sets apart these two approaches when declaring the status property. I understand that the second version maintains type safety, but how exactly does it achieve this?

export type OwnProps = {
  id: number;
  name: string;
  status: 'draft' | 'completed';
};

and

status: Union(Literal('draft'), Literal('completed')),

For those interested, the library providing Union, Literal, and more can be found here: https://github.com/pelotom/runtypes

Answer №1

The purpose of this library is to perform runtime validation on types, rather than defining the types themselves. While you can utilize the outputted types for your own purposes, its main function is to verify whether an object adheres to a specified type using tools such as Union and Literal. It's highly recommended to familiarize yourself with the documentation provided by the library.

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