A typeclass approach for default values in Scala. The topic of much scorn in Haskell, I find the existence of this typeclass to be superior to the general use Monoid everywhere as though it was a default value.

Default exists to allow you to have something that expresses what you want, even if it might not be what you actually need.

Default exists as a typeclass that allows Default[A].default: A, it exposes in the package object def default[A: Default]: A which you will likely find useful to remove the ceremony of summoning the typeclass to use.

To use this project in an existing SBT project with Scala 2.11 or a later version, add the following dependencies to your build.sbt depending on your needs:

libraryDependencies ++= Seq(
  "io.chrisdavenport" %% "default"     % "<version>"
)