trait MapFunctions extends AnyRef
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- final def !=(arg0: Any): Boolean
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- final def ##: Int
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- final def ==(arg0: Any): Boolean
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- final def alter[K, A](m: Map[K, A], k: K)(f: (Option[A]) => Option[A]): Map[K, A]
Vary the value of
m get k
. - final def asInstanceOf[T0]: T0
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- def clone(): AnyRef
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- final def eq(arg0: AnyRef): Boolean
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- def equals(arg0: AnyRef): Boolean
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- def finalize(): Unit
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- final def getClass(): Class[_ <: AnyRef]
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- @native()
- final def getOrAdd[F[_], K, A](m: Map[K, A], k: K)(fa: => F[A])(implicit F: Applicative[F]): F[(Map[K, A], A)]
Grab a value out of Map if it's present.
Grab a value out of Map if it's present. Otherwise evaluate a value to be placed at that key in the Map.
- def hashCode(): Int
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- final def insertWith[K, A](m1: Map[K, A], k: K, v: A)(f: (A, A) => A): Map[K, A]
As with
Map.updated
, but resolve a collision withf
.As with
Map.updated
, but resolve a collision withf
. The first argument is guaranteed to be fromm1
. - final def intersectWith[K, A, B, C](m1: Map[K, A], m2: Map[K, B])(f: (A, B) => C): Map[K, C]
Collect only elements with matching keys, joining their associated values with
f
. - final def intersectWithKey[K, A, B, C](m1: Map[K, A], m2: Map[K, B])(f: (K, A, B) => C): Map[K, C]
Like
intersectWith
, but tellf
about the key. - final def isInstanceOf[T0]: Boolean
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- final def mapKeys[K, K2, A](m: Map[K, A])(f: (K) => K2): Map[K2, A]
Exchange keys of
m
according tof
.Exchange keys of
m
according tof
. Result may be smaller iff
maps two or moreK
s to the sameK2
, in which case the resulting associated value is an arbitrary choice. - final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- final def notifyAll(): Unit
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- final def synchronized[T0](arg0: => T0): T0
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- def toString(): String
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- final def unionWith[K, A](m1: Map[K, A], m2: Map[K, A])(f: (A, A) => A): Map[K, A]
Union, resolving collisions with
f
, where the first arg is guaranteed to be fromm1
, the second fromm2
.Union, resolving collisions with
f
, where the first arg is guaranteed to be fromm1
, the second fromm2
.- Note
iff
f
gives rise to a scalaz.Semigroup, so doesunionWith(_, _)(f)
.
- final def unionWithKey[K, A](m1: Map[K, A], m2: Map[K, A])(f: (K, A, A) => A): Map[K, A]
Like
unionWith
, but tellingf
about the key. - final def wait(): Unit
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- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
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- final def wait(arg0: Long): Unit
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