Nice intro to partial functions

[Aaron]

Just stumbled onto a blog entry back from October, but the author does
a good job at introducing Partial Functions, in particular in regards
to collections:


http://ebruchez.blogspot.com/2011/10/scala-partial-functions-without-phd.html

[Matt Russell]

Partial functions are pretty sweet! A feature I've not found an excuse to use yet is partial functions for pluggable exception handling:

scala> val handler: PartialFunction[Throwable, String] = { case e => "exception occurred" }

handler: PartialFunction[Throwable,String] = <function1>

scala> try { throw new RuntimeException } catch handler

res11: String = exception occurred

-- Matt