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Scala facts & stats

7 fact-checked facts about the scala programming language and functional coding, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

Who created Scala?

AnswerMartin Odersky

Martin Odersky designed Scala; Gosling made Java, van Rossum Python and Hickey Clojure.

What is the usual file extension for Scala source files?

Answer.scala

Scala source files use the .scala extension.

Going deeper

At which institution was Scala developed?

AnswerEPFL in Lausanne

Odersky and his team built Scala at EPFL in Switzerland.

Which popular big data processing engine is written mainly in Scala?

AnswerApache Spark

Apache Spark's core is written in Scala; the other three are mainly Java.

What is the most common build tool for Scala projects?

Answersbt

sbt is the standard Scala build tool; the others serve JavaScript, Rust and Python.

Expert level

In what year was Scala first publicly released?

Answer2004

Scala's first public release came in 2004.

Which actor-model toolkit became closely associated with Scala?

AnswerAkka

Akka brought the actor model for concurrent systems to Scala and the JVM.

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