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Learn Type-Driven Development
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Learn Type-Driven Development
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Overview of this book
Type-driven development is an approach that uses a static type system to achieve results including safety and efficiency. Types are used to express relationships and other assumptions directly in the code, and these assumptions are enforced by the compiler before the code is run. Learn Type-Driven Development covers how to use these type systems to check the logical consistency of your code.
This book begins with the basic idea behind type-driven development. You’ll learn about values (or terms) and how they contrast with types. As you progress through the chapters, you’ll cover how to combine types and values inside modules and build structured types out of simpler ones. You’ll then understand how to express choices or alternatives directly in the type system using variants, polymorphic variants, and generalized algebraic data types. You’ll also get to grips with sum types, build sophisticated data types from generics, and explore functions that express change in the types of values. In the concluding chapters, you’ll cover advanced techniques for code reuse, such as parametric polymorphism and subtyping.
By end of this book, you will have learned how to iterate through a type-driven process of solving coding problems using static types, together with dynamic behavior, to obtain more safety and speed.
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Current Title:
Learn Type-Driven Development
Table of Contents (12 chapters)
Preface
Free Chapter
Starting Type-Driven Development
Programming with Types and Values
Packaging Types and Values Together
Grouping Values Together in Types
Putting Alternative Values in Types
Making Types That Can Slot into Any Other Type
Making Types That Represent Operations
Reusing Code with Many Different Types
Extending Types with New Behavior
Bringing It All Together
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