Programming with Types teaches you to design safe, resilient, correct software that’s easy to maintain and understand by taking advantage of the power of strong type systems. Designed to provide practical, instantly-useful techniques for working developers, this clearly-written tutorial introduces you to using type systems to support everyday programming tasks. In it, you’ll explore the impact types have on functions, inheritance, and composition, and you’ll take a close look at generics, which enable greater abstraction. You’ll also discover folding data structures and applying functions to containers with higher kinded types. Along the way, you’ll explore real-world use cases and practical examples in TypeScript as you build your skills from primitive types up to more advanced concepts like functors and monads. what's inside An introduction to type systems and their benefits Designing functions that don’t return values Encoding text Building data structures with arrays and references Type composition Function types Type safety Asynchronous functions Subtyping Object-oriented programming with types Generic data structures and algorithms