How to split a sequence into two pieces by predicate?

by

By using partition method: 

scala> List(1,2,3,4).partition(x => x % 2 == 0)
res0: (List[Int], List[Int]) = (List(2, 4),List(1, 3))

More Related Contents:

  1. How to store custom objects in Dataset?
  2. What is the difference between self-types and trait subclasses?
  3. Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
  4. What are type lambdas in Scala and what are their benefits?
  5. How do I break out of a loop in Scala?
  6. Scala: Why mapValues produces a view and is there any stable alternatives?
  7. Scala @ operator
  8. Joining Spark dataframes on the key
  9. Scala’s “for comprehension” with futures
  10. How to set heap size for sbt?
  11. Scala Map implementation keeping entries in insertion order?
  12. Modify collection inside a Spark RDD foreach
  13. How to write unit tests in Spark 2.0+?
  14. Easy idiomatic way to define Ordering for a simple case class
  15. What is *so* wrong with case class inheritance?
  16. What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java code?
  17. How to create SBT project with IntelliJ Idea?
  18. How to apply a function to a tuple?
  19. Spark: Transpose DataFrame Without Aggregating
  20. Advantages of F-bounded polymorphism over typeclass for return-current-type problem
  21. Why won’t the Scala compiler apply tail call optimization unless a method is final?
  22. Exploding nested Struct in Spark dataframe
  23. Why is parameter in contravariant position?
  24. How to run jar generated by package (possibly with other jars under lib)?
  25. Can multi-projects from GIT be used as SBT dependencies?
  26. Is there an equivalent to SuppressWarnings in Scala?
  27. Why isn’t Validation a Monad?
  28. Can I import from multiple packages all at once in Scala?
  29. How is this case class match pattern working?
  30. Is it possible to have tuple assignment to variables in Scala? [duplicate]

Leave a Comment