About This Book
Get to grips with data flow using immutability and learn how to reason with code
Eliminate the common loop problems efficiently using Recursion
Boost your performance by using lazy functions and employing laziness to increase performance
Play with the included sample application - a text-based adventure game - to see the techniques put together
Table of Contents
INTRODUCTION TO FUNCTIONAL PROGRAMMING
HIGHER ORDER FUNCTIONS
What You Will Learn
Explore higher-order functions, what they are and how to work with them
Solve issues related to asynchronous methods effectively by using promises
Use a library such as immutable.js to implement immutability
Implement immutability with Facebook's React for super fast user interfaces
Combine a "functional core" to build a web application where most of the code is functional
Make efficient use of recursion with big data sets to make code easier to visualize
Along with being tried and trusted, functional programming is one of the biggest current trends in programming. Its focus on side-effect free code, unadorned data manipulation and simple structures promote a coding style that reduces bugs, and lifts the level of abstraction to a point where we can achieve more with less code. All topics discussed in the course can be used to various degrees in any code-base - even if your daily work is with a huge object-oriented project, the techniques discussed will certainly be useful.
Right from the start we'll dive into the implementation of a text-based adventure game. We will also see how function composition is used to solve specific problems in this domain by combining highly generic functions. We learn function programming techniques that help improve asynchronous code used to load the game from disk.
Later we'll become acquainted with a few other examples as well, as we learn about designing applications around an immutable data structure. And we end our journey with a discussion of recursion and how it relates to lazy data structures, and show examples of using previously discussed techniques on infinite data sets.
Style and Approach
This video course is a comprehensive guide with live demonstrations of the constructs explained and practical results for thorough understanding.
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