Learn Intermediate TypeScript: Type Narrowing

Learn advanced techniques to narrow complex types in TypeScript. Discover TypeScript’s power inference through type guards and type narrowing.

Master the art of type narrowing in TypeScript with this intermediate course. You'll learn how TypeScript does type narrowing at runtime, create user-defined type guards, and utilize appropriate operators such as `typeof` and `in` when writing type guards. With hands-on exercises and practical examples, you'll gain a deep understanding of type narrowing techniques and how they can help you write cleaner, more efficient code.


* Describe how TypeScript does type narrowing at runtime

* Check variable types with a type guard

* Utilize the `typeof` and `in` operators when writing type guards

• Intermediate Type Narrowing: Learn about Intermediate Type Narrowing
• Lesson: Intermediate Type Narrowing
• Project: Narrow Space Mining
• Quiz: Intermediate Type Narrowing
• Informational: TypeScript Type Narrowing Next Steps