Using the RxCpp library, write a function which counts the frequency of words from a text file.
(techno sound effects)…- [Instructor] Let's revisit the RxCpp example code.…Change the filter of the ages to be…from 13 to 19 inclusive, and render each…valid age to the output instead of a count.…Give yourself a few minutes to complete this challenge.…Good luck.…
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Author
Troy Miles
Released
12/11/2018
Functional programming allows you to write more concise code that's easier to read, debug, and maintain. It revolves around powerful, mathematical functions that tell the computer what to do—not how to do it. The developer doesn't have to worry about order of execution, loops, or conditions. You simply define the desired outcome; the computer takes care of the rest. This course introduces the benefits and features of functional programming, and shows how to use different techniques and libraries in C++ to make code more functional. Instructor Troy Miles reviews built-in functions such as transform, copyif, accumulate, and bind and shows how to convert statements into more functional expressions using C++ Lambda functions. Plus, explore template metaprogramming with C++ templates and the STL and Boost.Hana libraries, and functional reactive programming with the RxCpp Reactive Extensions library for C++.
Topics include:
- Unit testing and functional programming
- Binding
- Function and Lambda functions
- C++ templates
- Working with the Standard Template Library and Boost.Hana
- Functional reactive programming
Skill Level Intermediate
1h 15m
Duration
6,486
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Introduction
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1. Overview
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2. Functional Programming in Modern C++
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Enabling C++ 174m 24s
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transform instead of map5m 30s
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copy_if instead of filter2m 59s
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accumulate instead of reduce2m 51s
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bind4m 56s
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Functions6m 54s
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Lambda functions: Curry3m 38s
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Lambda functions: Closures2m 20s
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3. Template Metaprogramming
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C++ templates4m 36s
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Factorial5m 23s
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Boost.Hana5m 31s
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4. Functional Reactive Programming
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RxCpp library5m 21s
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Conclusion
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Next steps41s
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Video: Challenge: Word frequency counter