Mastering Clojure

Packt Publishing Limited
  • 1. Auflage
  • |
  • erschienen am 28. März 2016
  • |
  • 266 Seiten
E-Book | ePUB mit Adobe DRM | Systemvoraussetzungen
978-1-78588-205-0 (ISBN)
Understand the philosophy of the Clojure language and dive into its inner workings to unlock its advanced features, methodologies, and constructsAbout This BookLearn to handle data using sequences, reducers, and transducers in ClojureExplore the lesser known and more advanced features, constructs, and methodologies of the Clojure language and its ecosystem, such as asynchronous channels, actors, logic programming, and reactive programmingSharpen your Clojure skills through illustrative and comprehensive examplesWho This Book Is ForIf you're looking to learn more about the core libraries and dive deep into the Clojure language, then this book is ideal for you. Prior knowledge of the Clojure language is required.What You Will LearnMaximize the impact of parallelization, functional composition, and process transformation by composing reducers and transducersProcess and manipulate data using sequences, reducers, and transducers in ClojureModify and add features to the Clojure language using macrosExplore the features of category theory and custom data sources for logic programming in ClojureOrchestrate parallelism and concurrency using built-in primitives as well as community libraries in ClojureHandle data with asynchronous and reactive programming methodologies and leverage it using the core.async libraryTest your code with unit tests, specs, and type checks to write testable codeTroubleshoot and style your Clojure code to make it more maintainableIn DetailClojure is a general-purpose language from the Lisp family with an emphasis on functional programming. It has some interesting concepts and features such as immutability, gradual typing, thread-safe concurrency primitives, and macro-based metaprogramming, which makes it a great choice to create modern, performant, and scalable applications.Mastering Clojure gives you an insight into the nitty-gritty details and more advanced features of the Clojure programming language to create more scalable, maintainable, and elegant applications. You'll start off by learning the details of sequences, concurrency primitives, and macros. Packed with a lot of examples, you'll get a walkthrough on orchestrating concurrency and parallelism, which will help you understand Clojure reducers, and we'll walk through composing transducers so you know about functional composition and process transformation inside out. We also explain how reducers and transducers can be used to handle data in a more performant manner.Later on, we describe how Clojure also supports other programming paradigms such as pure functional programming and logic programming. Furthermore, you'll level up your skills by taking advantage of Clojure's powerful macro system. Parallel, asynchronous, and reactive programming techniques are also described in detail.Lastly, we'll show you how to test and troubleshoot your code to speed up your development cycles and allow you to deploy the code faster.Style and approachThis is an easy-to-follow project-based guide that throws you directly into the excitement of Clojure code. Mastering Clojure is for anyone who is interested in expanding their knowledge of language features and advanced functional programming.
  • Englisch
  • Birmingham
  • |
  • Großbritannien
978-1-78588-205-0 (9781785882050)
1785882058 (1785882058)
weitere Ausgaben werden ermittelt
Akhil Wali is a software developer. He has been writing code as a hobbyist since 1997 and professionally since 2010. He completed his post graduation from Santa Clara University in 2010, and he graduated from Visvesvaraya Technological University in 2008. His areas of work include business intelligence systems, ERP systems, search engines, and document collaboration tools. He mostly works with Clojure, JavaScript, and C#. Apart from computers, his interests include soccer, guitar solos, and finding out more about the universe.
  • Cover
  • Copyright
  • Credits
  • About the Author
  • About the Reviewer
  • Table of Contents
  • Preface
  • Chapter 1: Working with Sequences and Patterns
  • Defining recursive functions
  • Thinking in sequences
  • Using the seq library
  • Creating sequences
  • Transforming sequences
  • Filtering sequences
  • Lazy sequences
  • Using zippers
  • Working with pattern matching
  • Summary
  • Chapter 2: Orchestrating Concurrency and Parallelism
  • Managing concurrent tasks
  • Using delays
  • Using futures and promises
  • Managing state
  • Using vars
  • Using refs
  • Using atoms
  • Using agents
  • Executing tasks in parallel
  • Controlling parallelism with thread pools
  • Summary
  • Chapter 3: Parallelization Using Reducers
  • Using reduce to transform collections
  • What's wrong with sequences?
  • Introducing reducers
  • Using fold to parallelize collections
  • Processing data with reducers
  • Summary
  • Chapter 4: Metaprogramming with Macros
  • Understanding the reader
  • Reading and evaluating code
  • Quoting and unquoting code
  • Transforming code
  • Expanding macros
  • Creating macros
  • Encapsulating patterns in macros
  • Using reader conditionals
  • Avoiding macros
  • Summary
  • Chapter 5: Composing Transducers
  • Understanding transducers
  • Producing results from transducers
  • Comparing transducers and reducers
  • Transducers in action
  • Managing volatile references
  • Creating transducers
  • Summary
  • Chapter 6: Exploring Category Theory
  • Demystifying category theory
  • Using monoids
  • Using functors
  • Using applicative functors
  • Using monads
  • Summary
  • Chapter 7: Programming with Logic
  • Diving into logic programming
  • Solving logical relations
  • Combining logical relations
  • Thinking in logical relations
  • Solving the n-queens problem
  • Solving a Sudoku puzzle
  • Summary
  • Chapter 8: Leveraging Asynchronous Tasks
  • Using channels
  • Customizing channels
  • Connecting channels
  • Revisiting the dining philosophers problem
  • Using actors
  • Creating actors
  • Passing messages between actors
  • Handling errors with actors
  • Managing state with actors
  • Comparing processes and actors
  • Summary
  • Chapter 9: Reactive Programming
  • Reactive programming with fibers and dataflow variables
  • Using Reactive Extensions
  • Using functional reactive programming
  • Building reactive user interfaces
  • Introducing Om
  • Summary
  • Chapter 10: Testing Your Code
  • Writing tests
  • Defining unit tests
  • Using top-down testing
  • Testing with specs
  • Generative testing
  • Testing with types
  • Summary
  • Chapter 11: Troubleshooting and Best Practices
  • Debugging your code
  • Using tracing
  • Using Spyscope
  • Logging errors in your application
  • Thinking in Clojure
  • Summary
  • Appendix: References
  • Index

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