Samples featured in Neal Ford's O'Reilly video Functional Thinking.
Learning the syntax of a new language is easy, but learning to think under a different paradigm is difficult. This video from renowned software architect Neal Ford helps you transition from a Java-writing imperative programmer to a functional programmer, using Java, Clojure and Scala as examples.
Rather than focus on specific language features, Functional Thinking looks at a variety of common practices in OOP languages and then shows you how to solve the same problems using a functional language. For instance, you know how to achieve code-reuse in Java via mechanisms such as inheritance and polymorphism. Code reuse is also possible in functional languages, using high-order functions, composition, and multi-methods.
Ford encourages you to value results over steps, so you can begin to think like a functional programmer. Expect your mind to be bent, but you’ll finish with a much better understanding of both the syntax and semantics of functional languages. This video is ideal for any experienced programmer.
- Introduction (35 minutes)
- Gradually Getting Started (41 minutes)
- Functions (29 minutes)
- Laziness (34 minutes)
- Coupling vs. Composition (25 minutes)
- Functional Data Structures (25 minutes)
- Rethinking Dispatch (20 minutes)
- Summary (25 minutes)
- Number Classifier
- Java
- Imperative
- Slightly more functional
- Functional Java
- Totally Lazy
- Groovy
- Scala
- Clojure
- Java
- Closures in Groovy
- Memoization in Groovy
- Lazy Lists in Groovy
- Palindromes
- Groovy
- Clojure
- Prime numbers
- Parsing XML in Clojure using Zippers
Either
andOption
in Java