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Mastering Clojure

You're reading from   Mastering Clojure Understand the philosophy of the Clojure language and dive into its inner workings to unlock its advanced features, methodologies, and constructs

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Product type Paperback
Published in Mar 2016
Publisher Packt
ISBN-13 9781785889745
Length 266 pages
Edition 1st Edition
Languages
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Author (1):
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Akhil Wali Akhil Wali
Author Profile Icon Akhil Wali
Akhil Wali
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Table of Contents (14) Chapters Close

Preface 1. Working with Sequences and Patterns FREE CHAPTER 2. Orchestrating Concurrency and Parallelism 3. Parallelization Using Reducers 4. Metaprogramming with Macros 5. Composing Transducers 6. Exploring Category Theory 7. Programming with Logic 8. Leveraging Asynchronous Tasks 9. Reactive Programming 10. Testing Your Code 11. Troubleshooting and Best Practices A. References
Index

Comparing transducers and reducers

Both transducers and reducers, which were discussed in Chapter 3, Parallelization Using Reducers, are ways to improve the performance of computations performed over collections. While transducers are a generalization of data processing for multiple data sources, there are a few other subtle differences between transducers and reducers, which are described as follows:

  • Transducers are implemented as part of the Clojure language in the clojure.core namespace. However, reducers must be explicitly included in a program, as they are implemented in the clojure.core.reducers namespace.
  • Transducers only create a collection when producing the final result of a series of transformations. There are no intermediary collections required to store the results of a transformation that constitutes a transducer. On the other hand, reducers produce intermediate collections to store results, and only avoid the creation of unnecessary empty collections.
  • Transducers deal with efficient...
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