ListOps

Value Members

1. final def !=(arg0: Any): Boolean

   

   Definition Classes

   Any

2. final def ##(): Int

   

   Definition Classes

   Any

3. final def ==(arg0: Any): Boolean

   

   Definition Classes

   Any

4. final def asInstanceOf[T0]: T0

   

   Definition Classes

   Any

5. def getClass(): Class[_ <: AnyVal]

   

   Definition Classes

   AnyVal → Any

6. def groupByNel[B](f: (A) ⇒ B)(implicit B: Order[B]): SortedMap[B, NonEmptyList[A]]

   

   Groups elements inside this List according to the Order of the keys produced by the given mapping function.

   Groups elements inside this List according to the Order of the keys produced by the given mapping function.

   scala> import cats.data.NonEmptyList
   scala> import scala.collection.immutable.SortedMap
   scala> import cats.implicits._
   
   scala> val list = List(12, -2, 3, -5)
   
   scala> list.groupByNel(_ >= 0)
   res0: SortedMap[Boolean, NonEmptyList[Int]] = Map(false -> NonEmptyList(-2, -5), true -> NonEmptyList(12, 3))

7. final def isInstanceOf[T0]: Boolean

   

   Definition Classes

   Any

8. def toNel: Option[NonEmptyList[A]]

   

   Returns an Option of NonEmptyList from a List

   Returns an Option of NonEmptyList from a List

   Example:

   scala> import cats.data.NonEmptyList
   scala> import cats.implicits._
   
   scala> val result1: List[Int] = List(1, 2)
   scala> result1.toNel
   res0: Option[NonEmptyList[Int]] = Some(NonEmptyList(1, 2))
   
   scala> val result2: List[Int] = List.empty[Int]
   scala> result2.toNel
   res1: Option[NonEmptyList[Int]] = None

9. def toString(): String

   

   Definition Classes

   Any