Reading Spark Query Plans
In this article you’ll learn one of the most important Spark skill: reading how your job will run. This is foundational to any further Spark optimization.
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How Things Don’t Make Sense - Scala Variables
Daniel goes into a small rant about learning (and teaching) Scala using variables.
Higher-Order Functions for OO Programmers
For OO programmers looking to dive into functional programming in Scala: a gentle introduction to functions working with other functions.
Controllable Futures in Scala
In this article we learn to address the problem of “deterministic” Futures in Scala, using Promises.
Self-types in Scala, Real Quick
Self types are a really interesting way to enforce type constraints in Scala. Learn to use it in a few minutes.
Sending HTTP Requests in Scala and Akka in 5 minutes
Learn to use Akka HTTP with Scala and send HTTP requests in just a few minutes with the Akka HTTP server DSL.
Why is Scala contravariance so hard?
The Scala type system is powerful, but also hard. We look at contravariance in Scala and try to make some sense out of it.
8 Scala Pattern Matching Tricks
Pattern matching is one of the most powerful Scala features. Learn to use it to the max so you can write your best Scala code.