Maximize the call-by-name semantics in Scala and manipulate your results when you want them.
We walk you through one of the foundational skills for Spark performance optimization: reading the Spark UI and the graph of how your job is structured.
We go on a short trip to Nothing (and nothing-ness) in Scala. Nothing is actually pretty useful.
Daniel goes into another rant about learning (and teaching) Scala using loops. Are they actually useful?
We demystify one of the hardest concepts in Akka Streams: materialized values.