Learn about runtime type validation in TypeScript, the difference between nominal and structural type systems, and how to implement nominal types using libraries like Zod and TypeBrandy. Discover the advantages of each approach and ensure type safety in your TypeScript projects.

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This article explores the concept of runtime type validation in TypeScript and introduces the Zod library as a tool to achieve it. It also discusses the distinction between nominal type systems and structural type systems in TypeScript and provides a workaround to add nominal type support using branded types. Overall, the article highlights the importance of type validation and offers different approaches to implement it in TypeScript.

You’re Doing Type Validation Wrong: A TypeScript Guide to Runtime Validation

Using a 3rd party library to add runtime validation

<p>Nice article, thank you!
Just a questioni: What Is the performance impact of runtime validation?</p>
