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Discover the power that functional programming brings to your Scala code. This international bestseller has been revised with new exercises, annotations, and full coverage of Scala 3.

In  Functional Programming in Scala, Second Edition you will learn how to:

• Recognize and write purely functional code
• Work with errors without using exceptions
• Work with state and concurrency
• Interact with functional structures that define common behaviors
• Write code that performs I/O without sacrificing functional programming

The first edition of  Functional Programming in Scala has helped over 30,000 developers discover the power of functional programming. This second edition is fully updated to Scala 3 and the latest standards of FP. Inside, you''ll find a serious tutorial for programmers looking to apply functional programming to improve their everyday coding practices. You''ll progress from the basics to advanced topics in a logical, concise, and clear progression. Throughout, concrete examples and exercises open up the world of functional programming. about the technology Functional programming (FP) is a style of software development emphasizing functions that don''t depend on program state. Functional code is easier to test and reuse, simpler to parallelize, and less prone to bugs than other code. Scala is a popular JVM language that offers strong support for FP. Its familiar syntax and transparent interoperability with Java make Scala a great place to start learning FP. about the book Functional Programming in Scala, Second Edition teaches you functional programming from first principles using the powerful Scala language. You''ll develop the unique skills you need to start thinking functionally through hands-on exercises and coding challenges. New to the revised second edition, each exercise comes with extensive annotations to help you understand functional programming in-depth. You''ll even learn how to build your own Scala functional library that''s perfectly adapted to your needs. You''ll soon be writing Scala code that''s easier to read, easier to reuse, better for concurrency, and less prone to bugs and errors. RETAIL SELLING POINTS 

• Recognize and write purely functional code 
• Work with errors without using exceptions 
• Work with state and concurrency 
• Interact with functional structures that define common behaviours 
• Write code that performs I/O without sacrificing functional programming 

AUDIENCE  For programmers experienced in Java or Scala. No prior knowledge of functional programming required.