🛡️ TypeScript🔵Chapter 17TypeScript BasicsWhy TS exists. Annotations, inference, the strict mode that catches bugs.3 lessons~1.2 hr1Why TypeScript?The contract that lets you refactor without fear. 15m2Types, Interfaces, NarrowingPrimitives, unions, interfaces, type aliases, narrowing. 30m3Functions & GenericsTyped params, generics, NoInfer, overloads. 25m Previous chapter🆕 Modern JavaScriptNext chapter 🧠 Advanced TypeScript