Class

cats.syntax

UnorderedFoldableOps

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final class UnorderedFoldableOps[F[_], A] extends AnyVal

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Instance Constructors

  1. new UnorderedFoldableOps(fa: F[A])

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Value Members

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

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  2. final def ##(): Int

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

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  4. final def asInstanceOf[T0]: T0

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  5. def count(p: (A) ⇒ Boolean)(implicit F: UnorderedFoldable[F]): Long

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    Count the number of elements in the structure that satisfy the given predicate.

    Count the number of elements in the structure that satisfy the given predicate.

    For example:

    scala> import cats.implicits._
    scala> val map1 = Map[Int, String]()
    scala> val p1: String => Boolean = _.length > 0
    scala> map1.count(p1)
    res0: Long = 0
    
    scala> val map2 = Map(1 -> "hello", 2 -> "world", 3 -> "!")
    scala> val p2: String => Boolean = _.length > 1
    scala> map2.count(p2)
    res1: Long = 2
  6. def getClass(): Class[_ <: AnyVal]

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  7. final def isInstanceOf[T0]: Boolean

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  8. def toString(): String

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