Lear about arrays in Scala.
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Here's what I've written (so far):
Learn various approaches for copying the elements of an array into another in Scala.
A quick and practical guide to the Magnet pattern in Scala.
Learn to remove duplicate items from a List in Scala.
Learn various ways of accessing the items of a List in Scala.
Learn various approaches for comparing Strings in Scala.
Learn how to exclude transitive dependencies when building a Scala project with SBT.
Learn how to create a simple HTTP server and client using http4s.
A quick and practical guide to converting RDD to DataFrame in Spark.
Learn about function composition in Scala.