F# is a uniquely powerful programming language. Its "light touch" approach to functional programming helps you deliver error-free code without a lot of complex math and academic theory. Simply put, F# exists to help you write better software faster, and this book will show you how. F# in Action teaches you to write professional quality applications in F#. For each concept, feature, and technique you'll find hands-on examples, starting with simple data transformations and progressing all the way to a full-size web app. Throughout the book, you'll take advantage of battle-tested .NET tools to take on a wide range of tasks-from data analysis to interoperability with C#. What's Inside, Model domains with F#'s type system, Ingest and process disparate data sources, Unit test F# code, Use scripts to rapidly explore domains, For readers comfortable with any OO or FP language. Prior .NET knowledge not required!