by Michal Plachta is a practical, beginner-friendly guide designed to help object-oriented programmers transition into functional programming (FP) concepts . The book focuses on applying FP principles to everyday tasks like concurrency and error handling without getting bogged down in heavy academic jargon . Key Learning Pillars
Leveraging the type system to model business logic and prevent bugs .
The book is structured into three main parts to build your functional mental model:
Treating functions like any other piece of data (passing them as arguments or returning them) . Part 2: Functional Programs
Learning to write functions that have no side effects and always produce the same output for the same input .
Using values that cannot be changed once created to make code more predictable .
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