TypeScript provides the ability to add Types and union types can be a better way of doing things, as demonstrated by authentication details. This article explains how TypeScript differs from traditional OOP languages and shows how to change our thinking to extract more from the language, with a focus on union types. The article also highlights common challenges faced by TypeScript users and offers tips on how to use the language to its full potential. Overall, this article is a great resource for those looking to improve their TypeScript skills and make the most out of this flexible language.