A fundamental part of TypeScript's design is that TypeScript types are erased at runtime. There's no way to access them. But inevitably, you'll want to do just that. This comes up most often when you want to validate that user input matches a TypeScript type. Faced with this problem, TypeScript developers often reach for Zod, a schema validation tool. But Zod has some downsides, and it's not the only solution to this conundrum. This sample item explores this problem and three possible solutio...
