Learn Intermediate TypeScript: Type Narrowing
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Learn advanced techniques to narrow complex types in TypeScript. Discover TypeScript’s power inference through type guards and type narrowing.
About this course
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.
Skills you’ll gain
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
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