using variable length argument in scala

by 
taxonomy(notFormattedTerms.toSeq:_*)

With : _* you virtually transform a sequence argument so that it looks as if a several arguments had been passed to the variable length method. This transformation, however, only works for (ordered?) simple sequence types and, as in this case, not for a Map. Therefore, one will have to use an explicit toSeq before.

More Related Contents:

  1. What are Scala context and view bounds?
  2. Best way to merge two maps and sum the values of same key?
  3. (Why) do we need to call cache or persist on a RDD
  4. Return in Scala
  5. Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala APIs)?
  6. Abort early in a fold
  7. How to pass -D parameter or environment variable to Spark job?
  8. Generating a class from string and instantiating it in Scala 2.10
  9. Why is “Unable to find encoder for type stored in a Dataset” when creating a dataset of custom case class?
  10. Append a column to Data Frame in Apache Spark 1.3
  11. Processing multiple files as independent RDD’s in parallel
  12. MatchError while accessing vector column in Spark 2.0
  13. Spark: what’s the best strategy for joining a 2-tuple-key RDD with single-key RDD?
  14. How do I list all files in a subdirectory in scala?
  15. Why does the Scala compiler disallow overloaded methods with default arguments?
  16. How do you do dependency injection with the Cake pattern without hardcoding?
  17. How to get ClassTag form TypeTag, or both at same time?
  18. Why is it possible to declare variable with same name in the REPL?
  19. How to process multi line input records in Spark
  20. Are HLists nothing more than a convoluted way of writing tuples?
  21. How to sort a list in Scala by two fields?
  22. Differences between these three ways of defining a function in Scala
  23. How to reference external sbt project from another sbt project?
  24. How can I connect to a postgreSQL database into Apache Spark using scala?
  25. How to serve uploaded files in Play!2 using Scala?
  26. Dynamically compiling scala class files at runtime in Scala 2.11
  27. How to vectorize DataFrame columns for ML algorithms?
  28. Scalaz Bind[Seq] typeclass
  29. Getting subclasses of a sealed trait
  30. How to instantiate an instance of type represented by type parameter in Scala

Leave a Comment