Julien Sirocchi will be presenting at Scala eXchange December 2014

Abstract

Typeclasses provide a means of adding behaviour to existing types retroactively (known as ad-hoc polymorphism). They can make libraries easier to use, more powerful and more generic. This presentation is a distilled narrative from the long journey discovering how to effectively use typeclasses in Scala.

View slides online

References

• The Neophyte’s Guide to Scala Part 12: Type classes - Daniel Westheide
• On Scala, Functional Programming and Type-Classes
• Scala’s Numeric type class Pt. 1 - Azavea Labs
• Scala 2.10 – or, why you will love implicit value classes
• Ruminations of a Programmer: Scala Implicits : Type Classes Here I Come
• Monkey Patching, Duck Typing and Type Classes
• Gang of Four Patterns With Type-Classes and Implicits in Scala - Java Code Geeks
• Scala Type Classes Demystified - Safari Blog
• implicit - What are type classes in Scala useful for? - Stack Overflow
• Scala School - Advanced types
• A Small Example of the Typeclass Pattern in Scala
• ropas.snu.ac.kr/~bruno/papers/TypeClasses.pdf
• Understanding Scala’s Type Classes
• typelevel.scala - Deriving Type Class Instances (Part 1)
• Algorithmically challenged: Implicit tricks – the Type Class pattern
• Tutorial: Typeclasses in Scala with Dan Rosen - YouTube
• Functional Dependencies in Scala - Chuusai
• How are Scala collections able to return the correct collection type from a map operation? - Stack Overflow
• Gang of Four Patterns With Type-Classes and Implicits in Scala (Part 2) - Java Code Geeks
• Visitor Pattern, Algebraic Data Type & Catamorphism

About Julien

Julien Sirocchi @jsirocchi is a Senior Software Developer @ Workday and is a member of the Grid Team. The Grid Team use Scala, Akka, Play and Spray to provide Workday’s elastic job execution evironment.