Never Fear unknown Again — How to Safely Work with Dynamic Types in TypeScript

TypeScript's `unknown` type provides a safer alternative to `any` for handling dynamic data by forcing explicit type checking before use. The article demonstrates practical techniques for type narrowing using `typeof`, `Array.isArray()`, and the `in` operator, along with creating custom type guards for reusable validation. It shows how to safely handle JSON parsing and external data while maintaining TypeScript's type safety benefits, emphasizing that `unknown` prevents runtime crashes by requiring developers to validate their assumptions about data types.