Scala Library: scala.collection.Map
scala.collection.Map
This object provides a set of operations needed to create Map
values.
Type Members
type Coll = Map[_, _]
The type constructor of the collection that can be built by this factory
- Definition Classes
- GenMapFactory
class MapCanBuildFrom[A, B] extends CanBuildFrom[Coll, (A, B), CC[A, B]]
The standard CanBuildFrom
class for maps.
- Definition Classes
- GenMapFactory
abstract class WithDefault[A, +B] extends AbstractMap[A, B] with Map[A, B] with Serializable
An abstract shell used by { mutable, immutable }.Map but not by collection.Map because of variance issues.
Value Members From scala.collection.Map
implicit def canBuildFrom[A, B]: CanBuildFrom[Coll, (A, B), Map[A, B]]
The standard CanBuildFrom
instance for Map
objects. The created value is an
instance of class MapCanBuildFrom
.
(defined at scala.collection.Map)
def empty[A, B]: immutable.Map[A, B]
An empty Map
- Definition Classes
- Map → MapFactory → GenMapFactory
(defined at scala.collection.Map)
Value Members From scala.collection.generic.GenMapFactory
def apply[A, B](elems: (A, B)*): Map[A, B]
A collection of type Map
that contains given key/value bindings.
- A
- the type of the keys
- B
- the type of the associated values
- elems
- the key/value pairs that make up the map
- returns
- a new map consisting key/value pairs given by
elems
.
- a new map consisting key/value pairs given by
- Definition Classes
- GenMapFactory
(defined at scala.collection.generic.GenMapFactory)
def newBuilder[A, B]: Builder[(A, B), Map[A, B]]
The default builder for Map
objects.
- A
- the type of the keys
- B
- the type of the associated values
- Definition Classes
- GenMapFactory (defined at scala.collection.generic.GenMapFactory)
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