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# SortedMap

### Companion object SortedMap

#### traitSortedMap[K, +V] extends Map[K, V] with collection.SortedMap[K, V] with SortedMapOps[K, V, SortedMap, SortedMap[K, V]] with SortedMapFactoryDefaults[K, V, SortedMap, Iterable, Map]

An immutable map whose key-value pairs are sorted according to an scala.math.Ordering on the keys.

Allows for range queries to be performed on its keys, and implementations must guarantee that traversal happens in sorted order, according to the map's scala.math.Ordering.

K

the type of the keys contained in this tree map.

V

the type of the values associated with the keys.

Source
SortedMap.scala
Example:
1. import scala.collection.immutable.SortedMap

// Make a SortedMap via the companion object factory
val weekdays = SortedMap(
2 -> "Monday",
3 -> "Tuesday",
4 -> "Wednesday",
5 -> "Thursday",
6 -> "Friday"
)
// TreeMap(2 -> Monday, 3 -> Tuesday, 4 -> Wednesday, 5 -> Thursday, 6 -> Friday)

val days = weekdays ++ List(1 -> "Sunday", 7 -> "Saturday")
// TreeMap(1 -> Sunday, 2 -> Monday, 3 -> Tuesday, 4 -> Wednesday, 5 -> Thursday, 6 -> Friday, 7 -> Saturday)

val day3 = days.get(3) // Some("Tuesday")

val rangeOfDays = days.range(2, 5) // TreeMap(2 -> Monday, 3 -> Tuesday, 4 -> Wednesday)

val daysUntil2 = days.rangeUntil(2) // TreeMap(1 -> Sunday)
val daysTo2 = days.rangeTo(2) // TreeMap(1 -> Sunday, 2 -> Monday)
val daysAfter5 = days.rangeFrom(5) //  TreeMap(5 -> Thursday, 6 -> Friday, 7 -> Saturday)
Linear Supertypes
SortedMapOps[K, V, SortedMap, SortedMap[K, V]], collection.SortedMap[K, V], SortedMapFactoryDefaults[K, V, [x, y]SortedMap[x, y], [x]Iterable[x], [x, y]Map[x, y]], collection.SortedMapOps[K, V, [X, Y]SortedMap[X, Y], SortedMap[K, V]], SortedOps[K, SortedMap[K, V]], Map[K, V], MapOps[K, V, Map, SortedMap[K, V]], collection.Map[K, V], Equals, MapFactoryDefaults[K, V, [x, y]Map[x, y], [x]Iterable[x]], collection.MapOps[K, V, [_, _]Map[_, _], SortedMap[K, V]], PartialFunction[K, V], (K) => V, Iterable[(K, V)], collection.Iterable[(K, V)], IterableFactoryDefaults[(K, V), [x]Iterable[x]], IterableOps[(K, V), [_]Iterable[_], SortedMap[K, V]], IterableOnceOps[(K, V), [_]Iterable[_], SortedMap[K, V]], IterableOnce[(K, V)], AnyRef, Any
Known Subclasses
Type Hierarchy
Ordering
1. Alphabetic
2. By Inheritance
Inherited
1. SortedMap
2. SortedMapOps
3. SortedMap
4. SortedMapFactoryDefaults
5. SortedMapOps
6. SortedOps
7. Map
8. MapOps
9. Map
10. Equals
11. MapFactoryDefaults
12. MapOps
13. PartialFunction
14. Function1
15. Iterable
16. Iterable
17. IterableFactoryDefaults
18. IterableOps
19. IterableOnceOps
20. IterableOnce
21. AnyRef
22. Any
Implicitly
1. by UnliftOps
2. by iterableOnceExtensionMethods
4. by StringFormat
5. by Ensuring
6. by ArrowAssoc
1. Hide All
2. Show All
Visibility
1. Public
2. Protected

### Type Members

1. trait GenKeySet extends AnyRef

A generic trait that is reused by keyset implementations

A generic trait that is reused by keyset implementations

Attributes
protected
Definition Classes
MapOps
2. class KeySet extends AbstractSet[K] with GenKeySet with DefaultSerializable

The implementation class of the set returned by keySet.

The implementation class of the set returned by keySet.

Attributes
protected
Definition Classes
MapOps
3. trait GenKeySortedSet extends GenKeySet

A generic trait that is reused by sorted keyset implementations

A generic trait that is reused by sorted keyset implementations

Attributes
protected
Definition Classes
SortedMapOps
4. class KeySortedSet extends SortedSet[K] with GenKeySet with GenKeySortedSet

The implementation class of the set returned by keySet

The implementation class of the set returned by keySet

Attributes
protected
Definition Classes
SortedMapOps
5. class ImmutableKeySet extends AbstractSet[K] with GenKeySet with DefaultSerializable

The implementation class of the set returned by keySet

The implementation class of the set returned by keySet

Attributes
protected
Definition Classes
MapOps
6. class ImmutableKeySortedSet extends AbstractSet[K] with SortedSet[K] with GenKeySet with GenKeySortedSet

The implementation class of the set returned by keySet

The implementation class of the set returned by keySet

Attributes
protected
Definition Classes
SortedMapOps

### Abstract Value Members

1. abstract def get(key: K): Option[V]

Optionally returns the value associated with a key.

Optionally returns the value associated with a key.

key

the key value

returns

an option value containing the value associated with key in this map, or None if none exists.

Definition Classes
MapOps
2. abstract def iterator: Iterator[(K, V)]

Iterator can be used only once

Iterator can be used only once

Definition Classes
IterableOnce
3. abstract def iteratorFrom(start: K): Iterator[(K, V)]

Creates an iterator over all the key/value pairs contained in this map having a key greater than or equal to start according to the ordering of this map.

Creates an iterator over all the key/value pairs contained in this map having a key greater than or equal to start according to the ordering of this map. x.iteratorFrom(y) is equivalent to but often more efficient than x.from(y).iterator.

start

The lower bound (inclusive) on the keys to be returned

Definition Classes
SortedMapOps
4. abstract def keysIteratorFrom(start: K): Iterator[K]

Creates an iterator over all the keys(or elements) contained in this collection greater than or equal to start according to the ordering of this collection.

Creates an iterator over all the keys(or elements) contained in this collection greater than or equal to start according to the ordering of this collection. x.keysIteratorFrom(y) is equivalent to but often more efficient than x.from(y).keysIterator.

start

The lower bound (inclusive) on the keys to be returned

Definition Classes
SortedMapOps
5. abstract def ordering: Ordering[K]
Definition Classes
SortedOps
6. abstract def rangeImpl(from: Option[K], until: Option[K]): SortedMap[K, V]

Creates a ranged projection of this collection.

Creates a ranged projection of this collection. Any mutations in the ranged projection will update this collection and vice versa.

Note: keys are not guaranteed to be consistent between this collection and the projection. This is the case for buffers where indexing is relative to the projection.

from

The lower-bound (inclusive) of the ranged projection. None if there is no lower bound.

until

The upper-bound (exclusive) of the ranged projection. None if there is no upper bound.

Definition Classes
SortedOps
7. abstract def removed(key: K): SortedMap[K, V]

Removes a key from this map, returning a new map.

Removes a key from this map, returning a new map.

key

the key to be removed

returns

a new map without a binding for key

Definition Classes
MapOps
8. abstract def updated[V1 >: V](key: K, value: V1): SortedMap[K, V1]

Creates a new map obtained by updating this map with a given key/value pair.

Creates a new map obtained by updating this map with a given key/value pair.

V1

the type of the added value

key

the key

value

the value

returns

A new map with the new key/value mapping added to this map.

Definition Classes
SortedMapOpsMapOps

### Concrete Value Members

1. final def !=(arg0: Any)

Test two objects for inequality.

Test two objects for inequality.

returns

true if !(this == that), false otherwise.

Definition Classes
AnyRef → Any
2. final def ##: Int

Equivalent to x.hashCode except for boxed numeric types and null.

Equivalent to x.hashCode except for boxed numeric types and null. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null returns a hashcode where null.hashCode throws a NullPointerException.

returns

a hash value consistent with ==

Definition Classes
AnyRef → Any
3. final def +[V1 >: V](kv: (K, V1)): SortedMap[K, V1]

Alias for updated

Alias for updated

V1

the type of the value in the key/value pair.

kv

the key/value pair.

returns

A new map with the new binding added to this map.

Definition Classes
SortedMapOpsSortedMapOpsMapOpsMapOps
Annotations
()
4. final def ++[V2 >: V](xs: IterableOnce[(K, V2)]): SortedMap[K, V2]

Alias for concat

Alias for concat

Definition Classes
SortedMapOpsMapOps
Annotations
()
5. final def ++[B >: (K, V)](suffix: IterableOnce[B]): Iterable[B]

Alias for concat

Alias for concat

Definition Classes
IterableOps
Annotations
()
6. final def -(key: K): SortedMap[K, V]

Alias for removed

Alias for removed

Definition Classes
MapOps
Annotations
()
7. final def --(keys: IterableOnce[K]): SortedMap[K, V]

Alias for removedAll

Alias for removedAll

Definition Classes
MapOpsMapOps
Annotations
()
8. def ->[B](y: B): (SortedMap[K, V], B)
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toArrowAssoc[SortedMap[K, V]] performed by method ArrowAssoc in scala.Predef.This conversion will take place only if V is a subclass of Option[Nothing] (V <: Option[Nothing]).
Definition Classes
ArrowAssoc
Annotations
()
9. final def ==(arg0: Any)

The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

returns

true if the receiver object is equivalent to the argument; false otherwise.

Definition Classes
AnyRef → Any
10. def addString(, start: String, sep: String, end: String): sb.type

Appends all elements of this immutable map to a string builder using start, end, and separator strings.

Appends all elements of this immutable map to a string builder using start, end, and separator strings. The written text begins with the string start and ends with the string end. Inside, the string representations (w.r.t. the method toString) of all elements of this immutable map are separated by the string sep.

Example:

scala> val a = List(1,2,3,4)
a: List[Int] = List(1, 2, 3, 4)

scala> val b = new StringBuilder()
b: StringBuilder =

scala> a.addString(b , "List(" , ", " , ")")
res5: StringBuilder = List(1, 2, 3, 4)
start

the starting string.

sep

the separator string.

end

the ending string.

returns

the string builder b to which elements were appended.

Definition Classes
MapOpsIterableOnceOps

Appends all elements of this immutable map to a string builder.

Appends all elements of this immutable map to a string builder. The written text consists of the string representations (w.r.t. the method toString) of all elements of this immutable map without any separator string.

Example:

scala> val a = List(1,2,3,4)
a: List[Int] = List(1, 2, 3, 4)

scala> val b = new StringBuilder()
b: StringBuilder =

h: StringBuilder = 1234
b

the string builder to which elements are appended.

returns

the string builder b to which elements were appended.

Definition Classes
IterableOnceOps
Annotations
()
12. final def addString(, sep: String): b.type

Appends all elements of this immutable map to a string builder using a separator string.

Appends all elements of this immutable map to a string builder using a separator string. The written text consists of the string representations (w.r.t. the method toString) of all elements of this immutable map, separated by the string sep.

Example:

scala> val a = List(1,2,3,4)
a: List[Int] = List(1, 2, 3, 4)

scala> val b = new StringBuilder()
b: StringBuilder =

res0: StringBuilder = 1, 2, 3, 4
b

the string builder to which elements are appended.

sep

the separator string.

returns

the string builder b to which elements were appended.

Definition Classes
IterableOnceOps
Annotations
()
13. def andThen[C](k: PartialFunction[V, C]): PartialFunction[K, C]

Composes this partial function with another partial function that gets applied to results of this partial function.

Composes this partial function with another partial function that gets applied to results of this partial function.

Note that calling isDefinedAt on the resulting partial function may apply the first partial function and execute its side effect. For efficiency, it is recommended to call applyOrElse instead of isDefinedAt or apply.

C

the result type of the transformation function.

k

the transformation function

returns

a partial function with the domain of this partial function narrowed by other partial function, which maps arguments x to k(this(x)).

Definition Classes
PartialFunction
14. def andThen[C](k: (V) => C): PartialFunction[K, C]

Composes this partial function with a transformation function that gets applied to results of this partial function.

Composes this partial function with a transformation function that gets applied to results of this partial function.

If the runtime type of the function is a PartialFunction then the other andThen method is used (note its cautions).

C

the result type of the transformation function.

k

the transformation function

returns

a partial function with the domain of this partial function, possibly narrowed by the specified function, which maps arguments x to k(this(x)).

Definition Classes
PartialFunctionFunction1
15. def apply(key: K): V

Retrieves the value which is associated with the given key.

Retrieves the value which is associated with the given key. This method invokes the default method of the map if there is no mapping from the given key to a value. Unless overridden, the default method throws a NoSuchElementException.

key

the key

returns

the value associated with the given key, or the result of the map's default method, if none exists.

Definition Classes
MapOpsFunction1
Annotations
(cause = scala.this.throws.<init>\$default\$1[NoSuchElementException])
16. def applyOrElse[K1 <: K, V1 >: V](x: K1, default: (K1) => V1): V1

Applies this partial function to the given argument when it is contained in the function domain.

Applies this partial function to the given argument when it is contained in the function domain. Applies fallback function where this partial function is not defined.

Note that expression pf.applyOrElse(x, default) is equivalent to

if(pf isDefinedAt x) pf(x) else default(x)

except that applyOrElse method can be implemented more efficiently. For all partial function literals the compiler generates an applyOrElse implementation which avoids double evaluation of pattern matchers and guards. This makes applyOrElse the basis for the efficient implementation for many operations and scenarios, such as:

• combining partial functions into orElse/andThen chains does not lead to excessive apply/isDefinedAt evaluation
• lift and unlift do not evaluate source functions twice on each invocation
• runWith allows efficient imperative-style combining of partial functions with conditionally applied actions

For non-literal partial function classes with nontrivial isDefinedAt method it is recommended to override applyOrElse with custom implementation that avoids double isDefinedAt evaluation. This may result in better performance and more predictable behavior w.r.t. side effects.

x

the function argument

default

the fallback function

returns

the result of this function or fallback function application.

Definition Classes
MapOpsPartialFunction
17. final def asInstanceOf[T0]: T0

Cast the receiver object to be of type T0.

Cast the receiver object to be of type T0.

Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

returns

Definition Classes
Any
Exceptions thrown

ClassCastException if the receiver object is not an instance of the erasure of type T0.

18. def canEqual(that: Any)

A method that should be called from every well-designed equals method that is open to be overridden in a subclass.

A method that should be called from every well-designed equals method that is open to be overridden in a subclass. See Programming in Scala, Chapter 28 for discussion and design.

that

the value being probed for possible equality

returns

true if this instance can possibly equal that, otherwise false

Definition Classes
MapEquals
19. def className

Defines the prefix of this object's toString representation.

Defines the prefix of this object's toString representation.

It is recommended to return the name of the concrete collection type, but not implementation subclasses. For example, for ListMap this method should return "ListMap", not "Map" (the supertype) or "Node" (an implementation subclass).

The default implementation returns "Iterable". It is overridden for the basic collection kinds "Seq", "IndexedSeq", "LinearSeq", "Buffer", "Set", "Map", "SortedSet", "SortedMap" and "View".

returns

a string representation which starts the result of toString applied to this immutable map. By default the string prefix is the simple name of the collection class immutable map.

Attributes
protected[this]
Definition Classes
Iterable
20. def clone()

Create a copy of the receiver object.

Create a copy of the receiver object.

The default implementation of the clone method is platform dependent.

returns

a copy of the receiver object.

Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
(classOf[java.lang.CloneNotSupportedException]) ()
Note

not specified by SLS as a member of AnyRef

21. final def coll: SortedMap.this.type

returns

This collection as a C.

Attributes
protected
Definition Classes
IterableIterableOps
22. def collect[K2, V2](pf: PartialFunction[(K, V), (K2, V2)])(implicit ordering: Ordering[K2]): SortedMap[K2, V2]

Builds a new sorted map by applying a partial function to all elements of this immutable map on which the function is defined.

Builds a new sorted map by applying a partial function to all elements of this immutable map on which the function is defined.

pf

the partial function which filters and maps the immutable map.

returns

a new immutable map resulting from applying the given partial function pf to each element on which it is defined and collecting the results. The order of the elements is preserved.

Definition Classes
SortedMapOps
23. def collect[K2, V2](pf: PartialFunction[(K, V), (K2, V2)]): Map[K2, V2]

Builds a new collection by applying a partial function to all elements of this immutable map on which the function is defined.

Builds a new collection by applying a partial function to all elements of this immutable map on which the function is defined.

K2

the key type of the returned immutable map.

V2

the value type of the returned immutable map.

pf

the partial function which filters and maps the immutable map.

returns

a new immutable map resulting from applying the given partial function pf to each element on which it is defined and collecting the results. The order of the elements is preserved.

Definition Classes
MapOps
24. def collect[B](pf: PartialFunction[(K, V), B]): Iterable[B]

Builds a new immutable map by applying a partial function to all elements of this immutable map on which the function is defined.

Builds a new immutable map by applying a partial function to all elements of this immutable map on which the function is defined.

B

the element type of the returned immutable map.

pf

the partial function which filters and maps the immutable map.

returns

a new immutable map resulting from applying the given partial function pf to each element on which it is defined and collecting the results. The order of the elements is preserved.

Definition Classes
IterableOpsIterableOnceOps
25. def collectFirst[B](pf: PartialFunction[(K, V), B]): Option[B]

Finds the first element of the immutable map for which the given partial function is defined, and applies the partial function to it.

Finds the first element of the immutable map for which the given partial function is defined, and applies the partial function to it.

Note: may not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered.

pf

the partial function

returns

an option value containing pf applied to the first value for which it is defined, or None if none exists.

Definition Classes
IterableOnceOps
Example:
1. Seq("a", 1, 5L).collectFirst({ case x: Int => x*10 }) = Some(10)

26. def compose[R](k: PartialFunction[R, K]): PartialFunction[R, V]

Composes another partial function k with this partial function so that this partial function gets applied to results of k.

Composes another partial function k with this partial function so that this partial function gets applied to results of k.

Note that calling isDefinedAt on the resulting partial function may apply the first partial function and execute its side effect. For efficiency, it is recommended to call applyOrElse instead of isDefinedAt or apply.

R

the parameter type of the transformation function.

k

the transformation function

returns

a partial function with the domain of other partial function narrowed by this partial function, which maps arguments x to this(k(x)).

Definition Classes
PartialFunction
27. def compose[A](g: (A) => K): (A) => V

Composes two instances of Function1 in a new Function1, with this function applied last.

Composes two instances of Function1 in a new Function1, with this function applied last.

A

the type to which function g can be applied

g

a function A => T1

returns

a new function f such that f(x) == apply(g(x))

Definition Classes
Function1
Annotations
()
28. def concat[V2 >: V](suffix: IterableOnce[(K, V2)]): SortedMap[K, V2]

Returns a new immutable map containing the elements from the left hand operand followed by the elements from the right hand operand.

Returns a new immutable map containing the elements from the left hand operand followed by the elements from the right hand operand. The element type of the immutable map is the most specific superclass encompassing the element types of the two operands.

suffix

the iterable to append.

returns

a new immutable map which contains all elements of this immutable map followed by all elements of suffix.

Definition Classes
SortedMapOpsMapOps
29. def concat[B >: (K, V)](suffix: IterableOnce[B]): Iterable[B]

Returns a new immutable map containing the elements from the left hand operand followed by the elements from the right hand operand.

Returns a new immutable map containing the elements from the left hand operand followed by the elements from the right hand operand. The element type of the immutable map is the most specific superclass encompassing the element types of the two operands.

B

the element type of the returned collection.

suffix

the iterable to append.

returns

a new immutable map which contains all elements of this immutable map followed by all elements of suffix.

Definition Classes
IterableOps
30. def contains(key: K)

Tests whether this map contains a binding for a key.

Tests whether this map contains a binding for a key.

key

the key

returns

true if there is a binding for key in this map, false otherwise.

Definition Classes
MapOps
31. def copyToArray[B >: (K, V)](xs: Array[B], start: Int, len: Int): Int

Copy elements to an array, returning the number of elements written.

Copy elements to an array, returning the number of elements written.

Fills the given array xs starting at index start with at most len elements of this immutable map.

Copying will stop once either all the elements of this immutable map have been copied, or the end of the array is reached, or len elements have been copied.

B

the type of the elements of the array.

xs

the array to fill.

start

the starting index of xs.

len

the maximal number of elements to copy.

returns

the number of elements written to the array

Definition Classes
IterableOnceOps
Note

Reuse: After calling this method, one should discard the iterator it was called on. Using it is undefined and subject to change.

32. def copyToArray[B >: (K, V)](xs: Array[B], start: Int): Int

Copy elements to an array, returning the number of elements written.

Copy elements to an array, returning the number of elements written.

Fills the given array xs starting at index start with values of this immutable map.

Copying will stop once either all the elements of this immutable map have been copied, or the end of the array is reached.

B

the type of the elements of the array.

xs

the array to fill.

start

the starting index of xs.

returns

the number of elements written to the array

Definition Classes
IterableOnceOps
Annotations
()
Note

Reuse: After calling this method, one should discard the iterator it was called on. Using it is undefined and subject to change.

33. def copyToArray[B >: (K, V)](xs: Array[B]): Int

Copy elements to an array, returning the number of elements written.

Copy elements to an array, returning the number of elements written.

Fills the given array xs starting at index start with values of this immutable map.

Copying will stop once either all the elements of this immutable map have been copied, or the end of the array is reached.

B

the type of the elements of the array.

xs

the array to fill.

returns

the number of elements written to the array

Definition Classes
IterableOnceOps
Annotations
()
Note

Reuse: After calling this method, one should discard the iterator it was called on. Using it is undefined and subject to change.

34. def corresponds[B](that: IterableOnce[B])(p: ((K, V), B) => Boolean)

Tests whether every element of this collection's iterator relates to the corresponding element of another collection by satisfying a test predicate.

Tests whether every element of this collection's iterator relates to the corresponding element of another collection by satisfying a test predicate.

Note: will not terminate for infinite-sized collections.

B

the type of the elements of that

that

the other collection

p

the test predicate, which relates elements from both collections

returns

true if both collections have the same length and p(x, y) is true for all corresponding elements x of this iterator and y of that, otherwise false

Definition Classes
IterableOnceOps
35. def count(p: ((K, V)) => Boolean): Int

Counts the number of elements in the immutable map which satisfy a predicate.

Counts the number of elements in the immutable map which satisfy a predicate.

Note: will not terminate for infinite-sized collections.

p

the predicate used to test elements.

returns

the number of elements satisfying the predicate p.

Definition Classes
IterableOnceOps
36. def default(key: K): V

Defines the default value computation for the map, returned when a key is not found The method implemented here throws an exception, but it might be overridden in subclasses.

Defines the default value computation for the map, returned when a key is not found The method implemented here throws an exception, but it might be overridden in subclasses.

key

the given key value for which a binding is missing.

Definition Classes
MapOps
Annotations
(cause = scala.this.throws.<init>\$default\$1[NoSuchElementException])
Exceptions thrown
37. def drop(n: Int): SortedMap[K, V]

Selects all elements except first n ones.

Selects all elements except first n ones.

Note: might return different results for different runs, unless the underlying collection type is ordered.

n

the number of elements to drop from this immutable map.

returns

a immutable map consisting of all elements of this immutable map except the first n ones, or else the empty immutable map, if this immutable map has less than n elements. If n is negative, don't drop any elements.

Definition Classes
IterableOpsIterableOnceOps
38. def dropRight(n: Int): SortedMap[K, V]

Selects all elements except last n ones.

Selects all elements except last n ones.

Note: might return different results for different runs, unless the underlying collection type is ordered.

n

the number of elements to drop from this immutable map.

returns

a immutable map consisting of all elements of this immutable map except the last n ones, or else the empty immutable map, if this immutable map has less than n elements. If n is negative, don't drop any elements.

Definition Classes
IterableOps
39. def dropWhile(p: ((K, V)) => Boolean): SortedMap[K, V]

Drops longest prefix of elements that satisfy a predicate.

Drops longest prefix of elements that satisfy a predicate.

Note: might return different results for different runs, unless the underlying collection type is ordered.

p

The predicate used to test elements.

returns

the longest suffix of this immutable map whose first element does not satisfy the predicate p.

Definition Classes
IterableOpsIterableOnceOps
40. def elementWise: ElementWiseExtractor[K, V]

Returns an extractor object with a unapplySeq method, which extracts each element of a sequence data.

Returns an extractor object with a unapplySeq method, which extracts each element of a sequence data.

Definition Classes
PartialFunction
Example:
1. val firstChar: String => Option[Char] = _.headOption

Seq("foo", "bar", "baz") match {
case firstChar.unlift.elementWise(c0, c1, c2) =>
println(s"\$c0, \$c1, \$c2") // Output: f, b, b
}
41. def empty: SortedMap[K, V]

The empty iterable of the same type as this iterable

The empty iterable of the same type as this iterable

returns

an empty iterable of type C.

Definition Classes
SortedMapFactoryDefaultsIterableOps
42. def ensuring(cond: (SortedMap[K, V]) => Boolean, msg: => Any): SortedMap[K, V]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toEnsuring[SortedMap[K, V]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
43. def ensuring(cond: (SortedMap[K, V]) => Boolean): SortedMap[K, V]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toEnsuring[SortedMap[K, V]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
44. def ensuring(cond: Boolean, msg: => Any): SortedMap[K, V]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toEnsuring[SortedMap[K, V]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
45. def ensuring(cond: Boolean): SortedMap[K, V]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toEnsuring[SortedMap[K, V]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
46. final def eq(arg0: AnyRef)

Tests whether the argument (that) is a reference to the receiver object (this).

Tests whether the argument (that) is a reference to the receiver object (this).

The eq method implements an equivalence relation on non-null instances of AnyRef, and has three additional properties:

• It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false.
• For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
• null.eq(null) returns true.

When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).

returns

true if the argument is a reference to the receiver object; false otherwise.

Definition Classes
AnyRef
47. def equals(that: Any)

Equality of maps is implemented using the lookup method get.

Equality of maps is implemented using the lookup method get. This method returns true if

• the argument o is a Map,
• the two maps have the same size, and
• for every (key, value) pair in this map, other.get(key) == Some(value).

The implementation of equals checks the canEqual method, so subclasses of Map can narrow down the equality to specific map types. The Map implementations in the standard library can all be compared, their canEqual methods return true.

Note: The equals method only respects the equality laws (symmetry, transitivity) if the two maps use the same key equivalence function in their lookup operation. For example, the key equivalence operation in a scala.collection.immutable.TreeMap is defined by its ordering. Comparing a TreeMap with a HashMap leads to unexpected results if ordering.equiv(k1, k2) (used for lookup in TreeMap) is different from k1 == k2 (used for lookup in HashMap).

scala> import scala.collection.immutable._
scala> val ord: Ordering[String] = _ compareToIgnoreCase _

scala> TreeMap("A" -> 1)(ord) == HashMap("a" -> 1)
val res0: Boolean = false

scala> HashMap("a" -> 1) == TreeMap("A" -> 1)(ord)
val res1: Boolean = true
returns

true if the two maps are equal according to the description

Definition Classes
SortedMapMapEquals → AnyRef → Any
48. def exists(p: ((K, V)) => Boolean)

Tests whether a predicate holds for at least one element of this immutable map.

Tests whether a predicate holds for at least one element of this immutable map.

Note: may not terminate for infinite-sized collections.

p

the predicate used to test elements.

returns

true if the given predicate p is satisfied by at least one element of this immutable map, otherwise false

Definition Classes
IterableOnceOps
49. def filter(pred: ((K, V)) => Boolean): SortedMap[K, V]

Selects all elements of this immutable map which satisfy a predicate.

Selects all elements of this immutable map which satisfy a predicate.

returns

a new immutable map consisting of all elements of this immutable map that satisfy the given predicate p. The order of the elements is preserved.

Definition Classes
IterableOpsIterableOnceOps
50. def filterNot(pred: ((K, V)) => Boolean): SortedMap[K, V]

Selects all elements of this immutable map which do not satisfy a predicate.

Selects all elements of this immutable map which do not satisfy a predicate.

pred

the predicate used to test elements.

returns

a new immutable map consisting of all elements of this immutable map that do not satisfy the given predicate pred. Their order may not be preserved.

Definition Classes
IterableOpsIterableOnceOps
51. def finalize(): Unit

Called by the garbage collector on the receiver object when there are no more references to the object.

Called by the garbage collector on the receiver object when there are no more references to the object.

The details of when and if the finalize method is invoked, as well as the interaction between finalize and non-local returns and exceptions, are all platform dependent.

Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
(classOf[java.lang.Throwable])
Note

not specified by SLS as a member of AnyRef

52. def find(p: ((K, V)) => Boolean): Option[(K, V)]

Finds the first element of the immutable map satisfying a predicate, if any.

Finds the first element of the immutable map satisfying a predicate, if any.

Note: may not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered.

p

the predicate used to test elements.

returns

an option value containing the first element in the immutable map that satisfies p, or None if none exists.

Definition Classes
IterableOnceOps
53. def firstKey: K

Returns the first key of the collection.

Returns the first key of the collection.

Definition Classes
SortedMapOpsSortedOps
54. def flatMap[K2, V2](f: ((K, V)) => IterableOnce[(K2, V2)])(implicit ordering: Ordering[K2]): SortedMap[K2, V2]

Builds a new sorted map by applying a function to all elements of this immutable map and using the elements of the resulting collections.

Builds a new sorted map by applying a function to all elements of this immutable map and using the elements of the resulting collections.

f

the function to apply to each element.

returns

a new immutable map resulting from applying the given collection-valued function f to each element of this immutable map and concatenating the results.

Definition Classes
SortedMapOps
55. def flatMap[K2, V2](f: ((K, V)) => IterableOnce[(K2, V2)]): Map[K2, V2]

Builds a new map by applying a function to all elements of this immutable map and using the elements of the resulting collections.

Builds a new map by applying a function to all elements of this immutable map and using the elements of the resulting collections.

f

the function to apply to each element.

returns

a new immutable map resulting from applying the given collection-valued function f to each element of this immutable map and concatenating the results.

Definition Classes
MapOps
56. def flatMap[B](f: ((K, V)) => IterableOnce[B]): Iterable[B]

Builds a new immutable map by applying a function to all elements of this immutable map and using the elements of the resulting collections.

Builds a new immutable map by applying a function to all elements of this immutable map and using the elements of the resulting collections.

For example:

def getWords(lines: Seq[String]): Seq[String] = lines flatMap (line => line split "\\W+")

The type of the resulting collection is guided by the static type of immutable map. This might cause unexpected results sometimes. For example:

// lettersOf will return a Seq[Char] of likely repeated letters, instead of a Set
def lettersOf(words: Seq[String]) = words flatMap (word => word.toSet)

// lettersOf will return a Set[Char], not a Seq
def lettersOf(words: Seq[String]) = words.toSet flatMap ((word: String) => word.toSeq)

// xs will be an Iterable[Int]
val xs = Map("a" -> List(11,111), "b" -> List(22,222)).flatMap(_._2)

// ys will be a Map[Int, Int]
val ys = Map("a" -> List(1 -> 11,1 -> 111), "b" -> List(2 -> 22,2 -> 222)).flatMap(_._2)
B

the element type of the returned collection.

f

the function to apply to each element.

returns

a new immutable map resulting from applying the given collection-valued function f to each element of this immutable map and concatenating the results.

Definition Classes
IterableOpsIterableOnceOps
57. def flatten[B](implicit asIterable: ((K, V)) => IterableOnce[B]): Iterable[B]

Converts this immutable map of iterable collections into a immutable map formed by the elements of these iterable collections.

Converts this immutable map of iterable collections into a immutable map formed by the elements of these iterable collections.

The resulting collection's type will be guided by the type of immutable map. For example:

val xs = List(
Set(1, 2, 3),
Set(1, 2, 3)
).flatten
// xs == List(1, 2, 3, 1, 2, 3)

val ys = Set(
List(1, 2, 3),
List(3, 2, 1)
).flatten
// ys == Set(1, 2, 3)
B

the type of the elements of each iterable collection.

asIterable

an implicit conversion which asserts that the element type of this immutable map is an Iterable.

returns

a new immutable map resulting from concatenating all element immutable maps.

Definition Classes
IterableOpsIterableOnceOps
58. def fold[A1 >: (K, V)](z: A1)(op: (A1, A1) => A1): A1

Folds the elements of this immutable map using the specified associative binary operator.

Folds the elements of this immutable map using the specified associative binary operator. The default implementation in IterableOnce is equivalent to foldLeft but may be overridden for more efficient traversal orders.

The order in which operations are performed on elements is unspecified and may be nondeterministic.

Note: will not terminate for infinite-sized collections.

A1

a type parameter for the binary operator, a supertype of A.

z

a neutral element for the fold operation; may be added to the result an arbitrary number of times, and must not change the result (e.g., Nil for list concatenation, 0 for addition, or 1 for multiplication).

op

a binary operator that must be associative.

returns

the result of applying the fold operator op between all the elements and z, or z if this immutable map is empty.

Definition Classes
IterableOnceOps
59. def foldLeft[B](z: B)(op: (B, (K, V)) => B): B

Applies a binary operator to a start value and all elements of this immutable map, going left to right.

Applies a binary operator to a start value and all elements of this immutable map, going left to right.

Note: will not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered or the operator is associative and commutative.

B

the result type of the binary operator.

z

the start value.

op

the binary operator.

returns

the result of inserting op between consecutive elements of this immutable map, going left to right with the start value z on the left: op(...op(z, x1), x2, ..., xn) where x1, ..., xn are the elements of this immutable map. Returns z if this immutable map is empty.

Definition Classes
IterableOnceOps
60. def foldRight[B](z: B)(op: ((K, V), B) => B): B

Applies a binary operator to all elements of this immutable map and a start value, going right to left.

Applies a binary operator to all elements of this immutable map and a start value, going right to left.

Note: will not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered or the operator is associative and commutative.

B

the result type of the binary operator.

z

the start value.

op

the binary operator.

returns

the result of inserting op between consecutive elements of this immutable map, going right to left with the start value z on the right: op(x1, op(x2, ... op(xn, z)...)) where x1, ..., xn are the elements of this immutable map. Returns z if this immutable map is empty.

Definition Classes
IterableOnceOps
61. def forall(p: ((K, V)) => Boolean)

Tests whether a predicate holds for all elements of this immutable map.

Tests whether a predicate holds for all elements of this immutable map.

Note: may not terminate for infinite-sized collections.

p

the predicate used to test elements.

returns

true if this immutable map is empty or the given predicate p holds for all elements of this immutable map, otherwise false.

Definition Classes
IterableOnceOps
62. def foreach[U](f: ((K, V)) => U): Unit

Apply f to each element for its side effects Note: [U] parameter needed to help scalac's type inference.

Apply f to each element for its side effects Note: [U] parameter needed to help scalac's type inference.

Definition Classes
IterableOnceOps
63. def foreachEntry[U](f: (K, V) => U): Unit

Apply f to each key/value pair for its side effects Note: [U] parameter needed to help scalac's type inference.

Apply f to each key/value pair for its side effects Note: [U] parameter needed to help scalac's type inference.

Definition Classes
MapOps
64. def fromSpecific(coll: IterableOnce[(K, V)]): SortedMap[K, V]

Defines how to turn a given Iterable[A] into a collection of type C.

Defines how to turn a given Iterable[A] into a collection of type C.

This process can be done in a strict way or a non-strict way (ie. without evaluating the elements of the resulting collections). In other words, this methods defines the evaluation model of the collection.

Attributes
protected
Definition Classes
SortedMapFactoryDefaultsIterableOps
Note

When implementing a custom collection type and refining C to the new type, this method needs to be overridden (the compiler will issue an error otherwise). In the common case where C =:= CC[A], this can be done by mixing in the scala.collection.IterableFactoryDefaults trait, which implements the method using iterableFactory.

,

As witnessed by the @uncheckedVariance annotation, using this method might be unsound. However, as long as it is called with an Iterable[A] obtained from this collection (as it is the case in the implementations of operations where we use a View[A]), it is safe.

65. final def getClass(): Class[_ <: AnyRef]

Returns the runtime class representation of the object.

Returns the runtime class representation of the object.

returns

a class object corresponding to the runtime type of the receiver.

Definition Classes
AnyRef → Any
Annotations
()
66. def getOrElse[V1 >: V](key: K, default: => V1): V1

Returns the value associated with a key, or a default value if the key is not contained in the map.

Returns the value associated with a key, or a default value if the key is not contained in the map.

V1

the result type of the default computation.

key

the key.

default

a computation that yields a default value in case no binding for key is found in the map.

returns

the value associated with key if it exists, otherwise the result of the default computation.

Definition Classes
MapOps
67. def groupBy[K](f: ((K, V)) => K): Map[K, SortedMap[K, V]]

Partitions this immutable map into a map of immutable maps according to some discriminator function.

Partitions this immutable map into a map of immutable maps according to some discriminator function.

Note: Even when applied to a view or a lazy collection it will always force the elements.

K

the type of keys returned by the discriminator function.

f

the discriminator function.

returns

A map from keys to immutable maps such that the following invariant holds:

(xs groupBy f)(k) = xs filter (x => f(x) == k)

That is, every key k is bound to a immutable map of those elements x for which f(x) equals k.

Definition Classes
IterableOps
68. def groupMap[K, B](key: ((K, V)) => K)(f: ((K, V)) => B): Map[K, Iterable[B]]

Partitions this immutable map into a map of immutable maps according to a discriminator function key.

Partitions this immutable map into a map of immutable maps according to a discriminator function key. Each element in a group is transformed into a value of type B using the value function.

It is equivalent to groupBy(key).mapValues(_.map(f)), but more efficient.

case class User(name: String, age: Int)

def namesByAge(users: Seq[User]): Map[Int, Seq[String]] =
users.groupMap(_.age)(_.name)

Note: Even when applied to a view or a lazy collection it will always force the elements.

K

the type of keys returned by the discriminator function

B

the type of values returned by the transformation function

key

the discriminator function

f

the element transformation function

Definition Classes
IterableOps
69. def groupMapReduce[K, B](key: ((K, V)) => K)(f: ((K, V)) => B)(reduce: (B, B) => B): Map[K, B]

Partitions this immutable map into a map according to a discriminator function key.

Partitions this immutable map into a map according to a discriminator function key. All the values that have the same discriminator are then transformed by the f function and then reduced into a single value with the reduce function.

It is equivalent to groupBy(key).mapValues(_.map(f).reduce(reduce)), but more efficient.

def occurrences[A](as: Seq[A]): Map[A, Int] =
as.groupMapReduce(identity)(_ => 1)(_ + _)

Note: Even when applied to a view or a lazy collection it will always force the elements.

Definition Classes
IterableOps
70. def grouped(size: Int): Iterator[SortedMap[K, V]]

Partitions elements in fixed size immutable maps.

Partitions elements in fixed size immutable maps.

size

the number of elements per group

returns

An iterator producing immutable maps of size size, except the last will be less than size size if the elements don't divide evenly.

Definition Classes
IterableOps

scala.collection.Iterator, method grouped

71. def hashCode(): Int

The hashCode method for reference types.

The hashCode method for reference types. See hashCode in scala.Any.

returns

the hash code value for this object.

Definition Classes
Map → AnyRef → Any

Selects the first element of this immutable map.

Selects the first element of this immutable map.

Note: might return different results for different runs, unless the underlying collection type is ordered.

returns

the first element of this immutable map.

Definition Classes
IterableOps
Exceptions thrown

NoSuchElementException if the immutable map is empty.

Optionally selects the first element.

Optionally selects the first element.

Note: might return different results for different runs, unless the underlying collection type is ordered.

returns

the first element of this immutable map if it is nonempty, None if it is empty.

Definition Classes
IterableOps
74. def init: SortedMap[K, V]

The initial part of the collection without its last element.

The initial part of the collection without its last element.

Note: Even when applied to a view or a lazy collection it will always force the elements.

Definition Classes
IterableOps
75. def inits: Iterator[SortedMap[K, V]]

Iterates over the inits of this immutable map.

Iterates over the inits of this immutable map. The first value will be this immutable map and the final one will be an empty immutable map, with the intervening values the results of successive applications of init.

Note: Even when applied to a view or a lazy collection it will always force the elements.

returns

an iterator over all the inits of this immutable map

Definition Classes
IterableOps
Example:
1. List(1,2,3).inits = Iterator(List(1,2,3), List(1,2), List(1), Nil)

76. def isDefinedAt(key: K)

Tests whether this map contains a binding for a key.

Tests whether this map contains a binding for a key. This method, which implements an abstract method of trait PartialFunction, is equivalent to contains.

key

the key

returns

true if there is a binding for key in this map, false otherwise.

Definition Classes
MapOpsPartialFunction
77. def isEmpty

Tests whether the immutable map is empty.

Tests whether the immutable map is empty.

Note: The default implementation creates and discards an iterator.

Note: Implementations in subclasses that are not repeatedly iterable must take care not to consume any elements when isEmpty is called.

returns

true if the immutable map contains no elements, false otherwise.

Definition Classes
IterableOnceOps
78. final def isInstanceOf[T0]

Test whether the dynamic type of the receiver object has the same erasure as T0.

Test whether the dynamic type of the receiver object has the same erasure as T0.

Depending on what T0 is, the test is done in one of the below ways:

• T0 is a non-parameterized class type, e.g. BigDecimal: this method returns true if the value of the receiver object is a BigDecimal or a subtype of BigDecimal.
• T0 is a parameterized class type, e.g. List[Int]: this method returns true if the value of the receiver object is some List[X] for any X. For example, List(1, 2, 3).isInstanceOf[List[String]] will return true.
• T0 is some singleton type x.type or literal x: this method returns this.eq(x). For example, x.isInstanceOf[1] is equivalent to x.eq(1)
• T0 is an intersection X with Y or X & Y: this method is equivalent to x.isInstanceOf[X] && x.isInstanceOf[Y]
• T0 is a union X | Y: this method is equivalent to x.isInstanceOf[X] || x.isInstanceOf[Y]
• T0 is a type parameter or an abstract type member: this method is equivalent to isInstanceOf[U] where U is T0's upper bound, Any if T0 is unbounded. For example, x.isInstanceOf[A] where A is an unbounded type parameter will return true for any value of x.

This is exactly equivalent to the type pattern _: T0

returns

true if the receiver object is an instance of erasure of type T0; false otherwise.

Definition Classes
Any
Note

due to the unexpectedness of List(1, 2, 3).isInstanceOf[List[String]] returning true and x.isInstanceOf[A] where A is a type parameter or abstract member returning true, these forms issue a warning.

79. def isTraversableAgain

Tests whether this immutable map can be repeatedly traversed.

Tests whether this immutable map can be repeatedly traversed. Always true for Iterables and false for Iterators unless overridden.

returns

true if it is repeatedly traversable, false otherwise.

Definition Classes
IterableOpsIterableOnceOps
80. def iterableFactory

The companion object of this immutable map, providing various factory methods.

The companion object of this immutable map, providing various factory methods.

Definition Classes
IterableIterableIterableOps
Note

When implementing a custom collection type and refining CC to the new type, this method needs to be overridden to return a factory for the new type (the compiler will issue an error otherwise).

81. def keySet: SortedSet[K]

Collects all keys of this map in a set.

Collects all keys of this map in a set.

returns

a set containing all keys of this map.

Definition Classes
SortedMapOpsSortedMapOpsMapOpsMapOps
82. def keyStepper[S <: Stepper[_]](implicit shape: StepperShape[K, S]): S

Returns a Stepper for the keys of this map.

Returns a Stepper for the keys of this map. See method stepper.

Definition Classes
MapOps
83. def keys

Collects all keys of this map in an iterable collection.

Collects all keys of this map in an iterable collection.

returns

the keys of this map as an iterable.

Definition Classes
MapOps
84. def keysIterator: Iterator[K]

Creates an iterator for all keys.

Creates an iterator for all keys.

returns

an iterator over all keys.

Definition Classes
MapOps
85. def knownSize: Int

returns

The number of elements in this immutable map, if it can be cheaply computed, -1 otherwise. Cheaply usually means: Not requiring a collection traversal.

Definition Classes
IterableOnce
86. def last: (K, V)

Selects the last element.

Selects the last element.

Note: might return different results for different runs, unless the underlying collection type is ordered.

returns

The last element of this immutable map.

Definition Classes
IterableOps
Exceptions thrown

NoSuchElementException If the immutable map is empty.

87. def lastKey: K

Returns the last key of the collection.

Returns the last key of the collection.

Definition Classes
SortedMapOpsSortedOps
88. def lastOption: Option[(K, V)]

Optionally selects the last element.

Optionally selects the last element.

Note: might return different results for different runs, unless the underlying collection type is ordered.

returns

the last element of this immutable map\$ if it is nonempty, None if it is empty.

Definition Classes
IterableOps
89. def lazyZip[B](that: collection.Iterable[B]): LazyZip2[(K, V), B, SortedMap.this.type]

Analogous to zip except that the elements in each collection are not consumed until a strict operation is invoked on the returned LazyZip2 decorator.

Analogous to zip except that the elements in each collection are not consumed until a strict operation is invoked on the returned LazyZip2 decorator.

Calls to lazyZip can be chained to support higher arities (up to 4) without incurring the expense of constructing and deconstructing intermediary tuples.

val xs = List(1, 2, 3)
val res = (xs lazyZip xs lazyZip xs lazyZip xs).map((a, b, c, d) => a + b + c + d)
// res == List(4, 8, 12)
B

the type of the second element in each eventual pair

that

the iterable providing the second element of each eventual pair

returns

a decorator LazyZip2 that allows strict operations to be performed on the lazily evaluated pairs or chained calls to lazyZip. Implicit conversion to Iterable[(A, B)] is also supported.

Definition Classes
Iterable
90. def lift: (K) => Option[V]

Turns this partial function into a plain function returning an Option result.

Turns this partial function into a plain function returning an Option result.

returns

a function that takes an argument x to Some(this(x)) if this is defined for x, and to None otherwise.

Definition Classes
PartialFunction

Function.unlift

91. def map[K2, V2](f: ((K, V)) => (K2, V2))(implicit ordering: Ordering[K2]): SortedMap[K2, V2]

Builds a new sorted map by applying a function to all elements of this immutable map.

Builds a new sorted map by applying a function to all elements of this immutable map.

f

the function to apply to each element.

returns

a new immutable map resulting from applying the given function f to each element of this immutable map and collecting the results.

Definition Classes
SortedMapOps
92. def map[K2, V2](f: ((K, V)) => (K2, V2)): Map[K2, V2]

Builds a new map by applying a function to all elements of this immutable map.

Builds a new map by applying a function to all elements of this immutable map.

f

the function to apply to each element.

returns

a new immutable map resulting from applying the given function f to each element of this immutable map and collecting the results.

Definition Classes
MapOps
93. def map[B](f: ((K, V)) => B): Iterable[B]

Builds a new immutable map by applying a function to all elements of this immutable map.

Builds a new immutable map by applying a function to all elements of this immutable map.

B

the element type of the returned immutable map.

f

the function to apply to each element.

returns

a new immutable map resulting from applying the given function f to each element of this immutable map and collecting the results.

Definition Classes
IterableOpsIterableOnceOps
94. def mapFactory

The companion object of this map, providing various factory methods.

The companion object of this map, providing various factory methods.

Definition Classes
MapMapMapOps
Note

When implementing a custom collection type and refining CC to the new type, this method needs to be overridden to return a factory for the new type (the compiler will issue an error otherwise).

95. final def mapFromIterable[K2, V2](it: collection.Iterable[(K2, V2)]): Map[K2, V2]

Similar to fromIterable, but returns a Map collection type.

Similar to fromIterable, but returns a Map collection type. Note that the return type is now CC[K2, V2].

Attributes
protected
Definition Classes
MapOps
Annotations
()
96. def max[B >: (K, V)](implicit ord: math.Ordering[B]): (K, V)

Finds the largest element.

Finds the largest element.

Note: will not terminate for infinite-sized collections.

B

The type over which the ordering is defined.

ord

An ordering to be used for comparing elements.

returns

the largest element of this immutable map with respect to the ordering ord.

Definition Classes
IterableOnceOps
Exceptions thrown

UnsupportedOperationException if this immutable map is empty.

97. def maxBefore(key: K): Option[(K, V)]

Find the element with largest key less than a given key.

Find the element with largest key less than a given key.

key

The given key.

returns

None if there is no such node.

Definition Classes
SortedMapOps
98. def maxBy[B](f: ((K, V)) => B)(implicit ord: math.Ordering[B]): (K, V)

Finds the first element which yields the largest value measured by function f.

Finds the first element which yields the largest value measured by function f.

Note: will not terminate for infinite-sized collections.

B

The result type of the function f.

f

The measuring function.

returns

the first element of this immutable map with the largest value measured by function f with respect to the ordering cmp.

Definition Classes
IterableOnceOps
Exceptions thrown

UnsupportedOperationException if this immutable map is empty.

99. def maxByOption[B](f: ((K, V)) => B)(implicit ord: math.Ordering[B]): Option[(K, V)]

Finds the first element which yields the largest value measured by function f.

Finds the first element which yields the largest value measured by function f.

Note: will not terminate for infinite-sized collections.

B

The result type of the function f.

f

The measuring function.

returns

an option value containing the first element of this immutable map with the largest value measured by function f with respect to the ordering cmp.

Definition Classes
IterableOnceOps
100. def maxOption[B >: (K, V)](implicit ord: math.Ordering[B]): Option[(K, V)]

Finds the largest element.

Finds the largest element.

Note: will not terminate for infinite-sized collections.

B

The type over which the ordering is defined.

ord

An ordering to be used for comparing elements.

returns

an option value containing the largest element of this immutable map with respect to the ordering ord.

Definition Classes
IterableOnceOps
101. def min[B >: (K, V)](implicit ord: math.Ordering[B]): (K, V)

Finds the smallest element.

Finds the smallest element.

Note: will not terminate for infinite-sized collections.

B

The type over which the ordering is defined.

ord

An ordering to be used for comparing elements.

returns

the smallest element of this immutable map with respect to the ordering ord.

Definition Classes
IterableOnceOps
Exceptions thrown

UnsupportedOperationException if this immutable map is empty.

102. def minAfter(key: K): Option[(K, V)]

Find the element with smallest key larger than or equal to a given key.

Find the element with smallest key larger than or equal to a given key.

key

The given key.

returns

None if there is no such node.

Definition Classes
SortedMapOps
103. def minBy[B](f: ((K, V)) => B)(implicit ord: math.Ordering[B]): (K, V)

Finds the first element which yields the smallest value measured by function f.

Finds the first element which yields the smallest value measured by function f.

Note: will not terminate for infinite-sized collections.

B

The result type of the function f.

f

The measuring function.

returns

the first element of this immutable map with the smallest value measured by function f with respect to the ordering cmp.

Definition Classes
IterableOnceOps
Exceptions thrown

UnsupportedOperationException if this immutable map is empty.

104. def minByOption[B](f: ((K, V)) => B)(implicit ord: math.Ordering[B]): Option[(K, V)]

Finds the first element which yields the smallest value measured by function f.

Finds the first element which yields the smallest value measured by function f.

Note: will not terminate for infinite-sized collections.

B

The result type of the function f.

f

The measuring function.

returns

an option value containing the first element of this immutable map with the smallest value measured by function f with respect to the ordering cmp.

Definition Classes
IterableOnceOps
105. def minOption[B >: (K, V)](implicit ord: math.Ordering[B]): Option[(K, V)]

Finds the smallest element.

Finds the smallest element.

Note: will not terminate for infinite-sized collections.

B

The type over which the ordering is defined.

ord

An ordering to be used for comparing elements.

returns

an option value containing the smallest element of this immutable map with respect to the ordering ord.

Definition Classes
IterableOnceOps
106. final def mkString

Displays all elements of this immutable map in a string.

Displays all elements of this immutable map in a string.

Delegates to addString, which can be overridden.

returns

a string representation of this immutable map. In the resulting string the string representations (w.r.t. the method toString) of all elements of this immutable map follow each other without any separator string.

Definition Classes
IterableOnceOps
Annotations
()
107. final def mkString(sep: String)

Displays all elements of this immutable map in a string using a separator string.

Displays all elements of this immutable map in a string using a separator string.

Delegates to addString, which can be overridden.

sep

the separator string.

returns

a string representation of this immutable map. In the resulting string the string representations (w.r.t. the method toString) of all elements of this immutable map are separated by the string sep.

Definition Classes
IterableOnceOps
Annotations
()
Example:
1. List(1, 2, 3).mkString("|") = "1|2|3"

108. final def mkString(start: String, sep: String, end: String)

Displays all elements of this immutable map in a string using start, end, and separator strings.

Displays all elements of this immutable map in a string using start, end, and separator strings.

Delegates to addString, which can be overridden.

start

the starting string.

sep

the separator string.

end

the ending string.

returns

a string representation of this immutable map. The resulting string begins with the string start and ends with the string end. Inside, the string representations (w.r.t. the method toString) of all elements of this immutable map are separated by the string sep.

Definition Classes
IterableOnceOps
Example:
1. List(1, 2, 3).mkString("(", "; ", ")") = "(1; 2; 3)"

109. final def ne(arg0: AnyRef)

Equivalent to !(this eq that).

Equivalent to !(this eq that).

returns

true if the argument is not a reference to the receiver object; false otherwise.

Definition Classes
AnyRef
110. def newSpecificBuilder: Builder[(K, V), SortedMap[K, V]]

returns

a strict builder for the same collection type. Note that in the case of lazy collections (e.g. scala.collection.View or scala.collection.immutable.LazyList), it is possible to implement this method but the resulting Builder will break laziness. As a consequence, operations should preferably be implemented with fromSpecific instead of this method.

Attributes
protected
Definition Classes
SortedMapFactoryDefaultsIterableOps
Note

When implementing a custom collection type and refining C to the new type, this method needs to be overridden (the compiler will issue an error otherwise). In the common case where C =:= CC[A], this can be done by mixing in the scala.collection.IterableFactoryDefaults trait, which implements the method using iterableFactory.

,

As witnessed by the @uncheckedVariance annotation, using this method might be unsound. However, as long as the returned builder is only fed with A values taken from this instance, it is safe.

111. def nonEmpty

Tests whether the immutable map is not empty.

Tests whether the immutable map is not empty.

returns

true if the immutable map contains at least one element, false otherwise.

Definition Classes
IterableOnceOps
Annotations
()
112. final def notify(): Unit

Wakes up a single thread that is waiting on the receiver object's monitor.

Wakes up a single thread that is waiting on the receiver object's monitor.

Definition Classes
AnyRef
Annotations
()
Note

not specified by SLS as a member of AnyRef

113. final def notifyAll(): Unit

Wakes up all threads that are waiting on the receiver object's monitor.

Wakes up all threads that are waiting on the receiver object's monitor.

Definition Classes
AnyRef
Annotations
()
Note

not specified by SLS as a member of AnyRef

114. def orElse[A1 <: K, B1 >: V](that: PartialFunction[A1, B1]): PartialFunction[A1, B1]

Composes this partial function with a fallback partial function which gets applied where this partial function is not defined.

Composes this partial function with a fallback partial function which gets applied where this partial function is not defined.

A1

the argument type of the fallback function

B1

the result type of the fallback function

that

the fallback function

returns

a partial function which has as domain the union of the domains of this partial function and that. The resulting partial function takes x to this(x) where this is defined, and to that(x) where it is not.

Definition Classes
PartialFunction
115. def partition(p: ((K, V)) => Boolean): (SortedMap[K, V], SortedMap[K, V])

A pair of, first, all elements that satisfy predicate p and, second, all elements that do not.

A pair of, first, all elements that satisfy predicate p and, second, all elements that do not. Interesting because it splits a collection in two.

The default implementation provided here needs to traverse the collection twice. Strict collections have an overridden version of partition in StrictOptimizedIterableOps, which requires only a single traversal.

Definition Classes
IterableOps
116. def partitionMap[A1, A2](f: ((K, V)) => Either[A1, A2]): (Iterable[A1], Iterable[A2])

Applies a function f to each element of the immutable map and returns a pair of immutable maps: the first one made of those values returned by f that were wrapped in scala.util.Left, and the second one made of those wrapped in scala.util.Right.

Applies a function f to each element of the immutable map and returns a pair of immutable maps: the first one made of those values returned by f that were wrapped in scala.util.Left, and the second one made of those wrapped in scala.util.Right.

Example:

val xs = `immutable.Map`(1, "one", 2, "two", 3, "three") partitionMap {
case i: Int => Left(i)
case s: String => Right(s)
}
// xs == (`immutable.Map`(1, 2, 3),
//        `immutable.Map`(one, two, three))
A1

the element type of the first resulting collection

A2

the element type of the second resulting collection

f

the 'split function' mapping the elements of this immutable map to an scala.util.Either

returns

a pair of immutable maps: the first one made of those values returned by f that were wrapped in scala.util.Left, and the second one made of those wrapped in scala.util.Right.

Definition Classes
IterableOps
117. def product[B >: (K, V)](implicit num: math.Numeric[B]): B

Multiplies together the elements of this collection.

Multiplies together the elements of this collection.

The default implementation uses reduce for a known non-empty collection, foldLeft otherwise.

Note: will not terminate for infinite-sized collections.

B

the result type of the * operator.

num

an implicit parameter defining a set of numeric operations which includes the * operator to be used in forming the product.

returns

the product of all elements of this immutable map with respect to the * operator in num.

Definition Classes
IterableOnceOps
118. def range(from: K, until: K): SortedMap[K, V]

Creates a ranged projection of this collection with both a lower-bound and an upper-bound.

Creates a ranged projection of this collection with both a lower-bound and an upper-bound.

from

The lower-bound (inclusive) of the ranged projection.

until

The upper-bound (exclusive) of the ranged projection.

Definition Classes
SortedOps
119. def rangeFrom(from: K): SortedMap[K, V]

Creates a ranged projection of this collection with no upper-bound.

Creates a ranged projection of this collection with no upper-bound.

from

The lower-bound (inclusive) of the ranged projection.

Definition Classes
SortedOps
120. def rangeTo(to: K): SortedMap[K, V]

Create a range projection of this collection with no lower-bound.

Create a range projection of this collection with no lower-bound.

to

The upper-bound (inclusive) of the ranged projection.

Definition Classes
SortedMapOpsSortedOps
121. def rangeUntil(until: K): SortedMap[K, V]

Creates a ranged projection of this collection with no lower-bound.

Creates a ranged projection of this collection with no lower-bound.

until

The upper-bound (exclusive) of the ranged projection.

Definition Classes
SortedOps
122. def reduce[B >: (K, V)](op: (B, B) => B): B

Reduces the elements of this immutable map using the specified associative binary operator.

Reduces the elements of this immutable map using the specified associative binary operator.

The order in which operations are performed on elements is unspecified and may be nondeterministic.

B

A type parameter for the binary operator, a supertype of A.

op

A binary operator that must be associative.

returns

The result of applying reduce operator op between all the elements if the immutable map is nonempty.

Definition Classes
IterableOnceOps
Exceptions thrown

UnsupportedOperationException if this immutable map is empty.

123. def reduceLeft[B >: (K, V)](op: (B, (K, V)) => B): B

Applies a binary operator to all elements of this immutable map, going left to right.

Applies a binary operator to all elements of this immutable map, going left to right.

Note: will not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered or the operator is associative and commutative.

B

the result type of the binary operator.

op

the binary operator.

returns

the result of inserting op between consecutive elements of this immutable map, going left to right: op( op( ... op(x1, x2) ..., xn-1), xn) where x1, ..., xn are the elements of this immutable map.

Definition Classes
IterableOnceOps
Exceptions thrown

UnsupportedOperationException if this immutable map is empty.

124. def reduceLeftOption[B >: (K, V)](op: (B, (K, V)) => B): Option[B]

Optionally applies a binary operator to all elements of this immutable map, going left to right.

Optionally applies a binary operator to all elements of this immutable map, going left to right.

Note: will not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered or the operator is associative and commutative.

B

the result type of the binary operator.

op

the binary operator.

returns

an option value containing the result of reduceLeft(op) if this immutable map is nonempty, None otherwise.

Definition Classes
IterableOnceOps
125. def reduceOption[B >: (K, V)](op: (B, B) => B): Option[B]

Reduces the elements of this immutable map, if any, using the specified associative binary operator.

Reduces the elements of this immutable map, if any, using the specified associative binary operator.

The order in which operations are performed on elements is unspecified and may be nondeterministic.

B

A type parameter for the binary operator, a supertype of A.

op

A binary operator that must be associative.

returns

An option value containing result of applying reduce operator op between all the elements if the collection is nonempty, and None otherwise.

Definition Classes
IterableOnceOps
126. def reduceRight[B >: (K, V)](op: ((K, V), B) => B): B

Applies a binary operator to all elements of this immutable map, going right to left.

Applies a binary operator to all elements of this immutable map, going right to left.

Note: will not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered or the operator is associative and commutative.

B

the result type of the binary operator.

op

the binary operator.

returns

the result of inserting op between consecutive elements of this immutable map, going right to left: op(x1, op(x2, ..., op(xn-1, xn)...)) where x1, ..., xn are the elements of this immutable map.

Definition Classes
IterableOnceOps
Exceptions thrown

UnsupportedOperationException if this immutable map is empty.

127. def reduceRightOption[B >: (K, V)](op: ((K, V), B) => B): Option[B]

Optionally applies a binary operator to all elements of this immutable map, going right to left.

Optionally applies a binary operator to all elements of this immutable map, going right to left.

Note: will not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered or the operator is associative and commutative.

B

the result type of the binary operator.

op

the binary operator.

returns

an option value containing the result of reduceRight(op) if this immutable map is nonempty, None otherwise.

Definition Classes
IterableOnceOps
128. def removedAll(keys: IterableOnce[K]): SortedMap[K, V]

Creates a new immutable map from this immutable map by removing all elements of another collection.

Creates a new immutable map from this immutable map by removing all elements of another collection.

Note: Even when applied to a view or a lazy collection it will always force the elements.

keys

the collection containing the removed elements.

returns

a new immutable map that contains all elements of the current immutable map except one less occurrence of each of the elements of elems.

Definition Classes
MapOps
129. def reversed: collection.Iterable[(K, V)]
Attributes
protected
Definition Classes
IterableOnceOps
130. def runWith[U](action: (V) => U): (K) => Boolean

Composes this partial function with an action function which gets applied to results of this partial function.

Composes this partial function with an action function which gets applied to results of this partial function. The action function is invoked only for its side effects; its result is ignored.

Note that expression pf.runWith(action)(x) is equivalent to

if(pf isDefinedAt x) { action(pf(x)); true } else false

except that runWith is implemented via applyOrElse and thus potentially more efficient. Using runWith avoids double evaluation of pattern matchers and guards for partial function literals.

action

the action function

returns

a function which maps arguments x to isDefinedAt(x). The resulting function runs action(this(x)) where this is defined.

Definition Classes
PartialFunction

applyOrElse.

131. def scan[B >: (K, V)](z: B)(op: (B, B) => B): Iterable[B]

Computes a prefix scan of the elements of the collection.

Computes a prefix scan of the elements of the collection.

Note: The neutral element z may be applied more than once.

B

element type of the resulting collection

z

neutral element for the operator op

op

the associative operator for the scan

returns

a new immutable map containing the prefix scan of the elements in this immutable map

Definition Classes
IterableOps
132. def scanLeft[B](z: B)(op: (B, (K, V)) => B): Iterable[B]

Produces a immutable map containing cumulative results of applying the operator going left to right, including the initial value.

Produces a immutable map containing cumulative results of applying the operator going left to right, including the initial value.

Note: will not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered.

B

the type of the elements in the resulting collection

z

the initial value

op

the binary operator applied to the intermediate result and the element

returns

collection with intermediate results

Definition Classes
IterableOpsIterableOnceOps
133. def scanRight[B](z: B)(op: ((K, V), B) => B): Iterable[B]

Produces a collection containing cumulative results of applying the operator going right to left.

Produces a collection containing cumulative results of applying the operator going right to left. The head of the collection is the last cumulative result.

Note: will not terminate for infinite-sized collections.

Note: might return different results for different runs, unless the underlying collection type is ordered.

Note: Even when applied to a view or a lazy collection it will always force the elements.

Example:

List(1, 2, 3, 4).scanRight(0)(_ + _) == List(10, 9, 7, 4, 0)
B

the type of the elements in the resulting collection

z

the initial value

op

the binary operator applied to the intermediate result and the element

returns

collection with intermediate results

Definition Classes
IterableOps
134. def size: Int

The size of this immutable map.

The size of this immutable map.

Note: will not terminate for infinite-sized collections.

returns

the number of elements in this immutable map.

Definition Classes
IterableOnceOps
135. def sizeCompare(that: collection.Iterable[_]): Int

Compares the size of this immutable map to the size of another Iterable.

Compares the size of this immutable map to the size of another Iterable.

that

the Iterable whose size is compared with this immutable map's size.

returns

A value x where

x <  0       if this.size <  that.size
x == 0       if this.size == that.size
x >  0       if this.size >  that.size

The method as implemented here does not call size directly; its running time is O(this.size min that.size) instead of O(this.size + that.size). The method should be overridden if computing size is cheap and knownSize returns -1.

Definition Classes
IterableOps
136. def sizeCompare(otherSize: Int): Int

Compares the size of this immutable map to a test value.

Compares the size of this immutable map to a test value.

otherSize

the test value that gets compared with the size.

returns

A value x where

x <  0       if this.size <  otherSize
x == 0       if this.size == otherSize
x >  0       if this.size >  otherSize

The method as implemented here does not call size directly; its running time is O(size min otherSize) instead of O(size). The method should be overridden if computing size is cheap and knownSize returns -1.

Definition Classes
IterableOps

sizeIs

137. final def sizeIs

Returns a value class containing operations for comparing the size of this immutable map to a test value.

Returns a value class containing operations for comparing the size of this immutable map to a test value.

These operations are implemented in terms of sizeCompare(Int), and allow the following more readable usages:

this.sizeIs < size     // this.sizeCompare(size) < 0
this.sizeIs <= size    // this.sizeCompare(size) <= 0
this.sizeIs == size    // this.sizeCompare(size) == 0
this.sizeIs != size    // this.sizeCompare(size) != 0
this.sizeIs >= size    // this.sizeCompare(size) >= 0
this.sizeIs > size     // this.sizeCompare(size) > 0
Definition Classes
IterableOps
Annotations
()
138. def slice(from: Int, until: Int): SortedMap[K, V]

Selects an interval of elements.

Selects an interval of elements. The returned immutable map is made up of all elements x which satisfy the invariant:

from <= indexOf(x) < until

Note: might return different results for different runs, unless the underlying collection type is ordered.

from

the lowest index to include from this immutable map.

until

the lowest index to EXCLUDE from this immutable map.

returns

a immutable map containing the elements greater than or equal to index from extending up to (but not including) index until of this immutable map.

Definition Classes
IterableOpsIterableOnceOps
139. def sliding(size: Int, step: Int): Iterator[SortedMap[K, V]]

Groups elements in fixed size blocks by passing a "sliding window" over them (as opposed to partitioning them, as is done in grouped.)

Groups elements in fixed size blocks by passing a "sliding window" over them (as opposed to partitioning them, as is done in grouped.)

The returned iterator will be empty when called on an empty collection. The last element the iterator produces may be smaller than the window size when the original collection isn't exhausted by the window before it and its last element isn't skipped by the step before it.

size

the number of elements per group

step

the distance between the first elements of successive groups

returns

An iterator producing immutable maps of size size, except the last element (which may be the only element) will be smaller if there are fewer than size elements remaining to be grouped.

Definition Classes
IterableOps
Examples:
1. List(1, 2, 3, 4, 5).sliding(2, 2) = Iterator(List(1, 2), List(3, 4), List(5))

2. ,
3. List(1, 2, 3, 4, 5, 6).sliding(2, 3) = Iterator(List(1, 2), List(4, 5))

scala.collection.Iterator, method sliding

140. def sliding(size: Int): Iterator[SortedMap[K, V]]

Groups elements in fixed size blocks by passing a "sliding window" over them (as opposed to partitioning them, as is done in grouped.)

Groups elements in fixed size blocks by passing a "sliding window" over them (as opposed to partitioning them, as is done in grouped.)

An empty collection returns an empty iterator, and a non-empty collection containing fewer elements than the window size returns an iterator that will produce the original collection as its only element.

size

the number of elements per group

returns

An iterator producing immutable maps of size size, except for a non-empty collection with less than size elements, which returns an iterator that produces the source collection itself as its only element.

Definition Classes
IterableOps
Examples:
1. List().sliding(2) = empty iterator

2. ,
3. List(1).sliding(2) = Iterator(List(1))

4. ,
5. List(1, 2).sliding(2) = Iterator(List(1, 2))

6. ,
7. List(1, 2, 3).sliding(2) = Iterator(List(1, 2), List(2, 3))

scala.collection.Iterator, method sliding

141. def sortedMapFactory

The companion object of this sorted map, providing various factory methods.

The companion object of this sorted map, providing various factory methods.

Definition Classes
SortedMapSortedMapSortedMapOps
Note

When implementing a custom collection type and refining CC to the new type, this method needs to be overridden to return a factory for the new type (the compiler will issue an error otherwise).

142. final def sortedMapFromIterable[K2, V2](it: collection.Iterable[(K2, V2)])(implicit ordering: Ordering[K2]): SortedMap[K2, V2]

Similar to mapFromIterable, but returns a SortedMap collection type.

Similar to mapFromIterable, but returns a SortedMap collection type. Note that the return type is now CC[K2, V2].

Attributes
protected
Definition Classes
SortedMapOps
Annotations
()
143. def span(p: ((K, V)) => Boolean): (SortedMap[K, V], SortedMap[K, V])

Splits this immutable map into a prefix/suffix pair according to a predicate.

Splits this immutable map into a prefix/suffix pair according to a predicate.

Note: c span p is equivalent to (but possibly more efficient than) (c takeWhile p, c dropWhile p), provided the evaluation of the predicate p does not cause any side-effects.

Note: might return different results for different runs, unless the underlying collection type is ordered.

p

the test predicate

returns

a pair consisting of the longest prefix of this immutable map whose elements all satisfy p, and the rest of this immutable map.

Definition Classes
IterableOpsIterableOnceOps
144. def splitAt(n: Int): (SortedMap[K, V], SortedMap[K, V])

Splits this immutable map into a prefix/suffix pair at a given position.

Splits this immutable map into a prefix/suffix pair at a given position.

Note: c splitAt n is equivalent to (but possibly more efficient than) (c take n, c drop n).

Note: might return different results for different runs, unless the underlying collection type is ordered.

n

the position at which to split.

returns

a pair of immutable maps consisting of the first n elements of this immutable map, and the other elements.

Definition Classes
IterableOpsIterableOnceOps
145. def stepper[S <: Stepper[_]](implicit shape: StepperShape[(K, V), S]): S

Returns a scala.collection.Stepper for the elements of this collection.

Returns a scala.collection.Stepper for the elements of this collection.

The Stepper enables creating a Java stream to operate on the collection, see scala.jdk.StreamConverters. For collections holding primitive values, the Stepper can be used as an iterator which doesn't box the elements.

The implicit scala.collection.StepperShape parameter defines the resulting Stepper type according to the element type of this collection.

Note that this method is overridden in subclasses and the return type is refined to S with EfficientSplit, for example scala.collection.IndexedSeqOps.stepper. For Steppers marked with scala.collection.Stepper.EfficientSplit, the converters in scala.jdk.StreamConverters allow creating parallel streams, whereas bare Steppers can be converted only to sequential streams.

Definition Classes
IterableOnce
146. def stringPrefix
Attributes
protected[this]
Definition Classes
SortedMapMapIterable
Annotations
()
147. def sum[B >: (K, V)](implicit num: math.Numeric[B]): B

Sums the elements of this collection.

Sums the elements of this collection.

The default implementation uses reduce for a known non-empty collection, foldLeft otherwise.

Note: will not terminate for infinite-sized collections.

B

the result type of the + operator.

num

an implicit parameter defining a set of numeric operations which includes the + operator to be used in forming the sum.

returns

the sum of all elements of this immutable map with respect to the + operator in num.

Definition Classes
IterableOnceOps
148. final def synchronized[T0](arg0: => T0): T0

Executes the code in body with an exclusive lock on this.

Executes the code in body with an exclusive lock on this.

returns

the result of body

Definition Classes
AnyRef
149. def tail: SortedMap[K, V]

The rest of the collection without its first element.

The rest of the collection without its first element.

Definition Classes
IterableOps
150. def tails: Iterator[SortedMap[K, V]]

Iterates over the tails of this immutable map.

Iterates over the tails of this immutable map. The first value will be this immutable map and the final one will be an empty immutable map, with the intervening values the results of successive applications of tail.

returns

an iterator over all the tails of this immutable map

Definition Classes
IterableOps
Example:
1. List(1,2,3).tails = Iterator(List(1,2,3), List(2,3), List(3), Nil)

151. def take(n: Int): SortedMap[K, V]

Selects the first n elements.

Selects the first n elements.

Note: might return different results for different runs, unless the underlying collection type is ordered.

n

the number of elements to take from this immutable map.

returns

a immutable map consisting only of the first n elements of this immutable map, or else the whole immutable map, if it has less than n elements. If n is negative, returns an empty immutable map.

Definition Classes
IterableOpsIterableOnceOps
152. def takeRight(n: Int): SortedMap[K, V]

Selects the last n elements.

Selects the last n elements.

Note: might return different results for different runs, unless the underlying collection type is ordered.

n

the number of elements to take from this immutable map.

returns

a immutable map consisting only of the last n elements of this immutable map, or else the whole immutable map, if it has less than n elements. If n is negative, returns an empty immutable map.

Definition Classes
IterableOps
153. def takeWhile(p: ((K, V)) => Boolean): SortedMap[K, V]

Takes longest prefix of elements that satisfy a predicate.

Takes longest prefix of elements that satisfy a predicate.

Note: might return different results for different runs, unless the underlying collection type is ordered.

p

The predicate used to test elements.

returns

the longest prefix of this immutable map whose elements all satisfy the predicate p.

Definition Classes
IterableOpsIterableOnceOps
154. def tapEach[U](f: ((K, V)) => U): SortedMap[K, V]

Applies a side-effecting function to each element in this collection.

Applies a side-effecting function to each element in this collection. Strict collections will apply f to their elements immediately, while lazy collections like Views and LazyLists will only apply f on each element if and when that element is evaluated, and each time that element is evaluated.

U

the return type of f

f

a function to apply to each element in this immutable map

returns

The same logical collection as this

Definition Classes
IterableOpsIterableOnceOps
155. def to[C1](factory: Factory[(K, V), C1]): C1

Given a collection factory factory, convert this collection to the appropriate representation for the current element type A.

Given a collection factory factory, convert this collection to the appropriate representation for the current element type A. Example uses:

xs.to(List)
xs.to(ArrayBuffer)
xs.to(BitSet) // for xs: Iterable[Int]
Definition Classes
IterableOnceOps
156. def toArray[B >: (K, V)](implicit arg0: ClassTag[B]): Array[B]

Convert collection to array.

Convert collection to array.

Implementation note: DO NOT call Array.from from this method.

Definition Classes
IterableOnceOps
157. final def toBuffer[B >: (K, V)]: Buffer[B]
Definition Classes
IterableOnceOps
Annotations
()
158. def toIndexedSeq: IndexedSeq[(K, V)]
Definition Classes
IterableOnceOps
159. def toList: List[(K, V)]
Definition Classes
IterableOnceOps
160. final def toMap[K2, V2](implicit ev: <:<[(K, V), (K2, V2)]): Map[K2, V2]
Definition Classes
MapIterableOnceOps
161. def toSeq: Seq[(K, V)]

returns

This collection as a Seq[A]. This is equivalent to to(Seq) but might be faster.

Definition Classes
IterableOnceOps
162. def toSet[B >: (K, V)]: Set[B]
Definition Classes
IterableOnceOps
163. def toString()

Creates a String representation of this object.

Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

returns

a String representation of the object.

Definition Classes
MapFunction1Iterable → AnyRef → Any
164. def toVector: Vector[(K, V)]
Definition Classes
IterableOnceOps
165. def transform[W](f: (K, V) => W): SortedMap[K, W]

This function transforms all the values of mappings contained in this map with function f.

This function transforms all the values of mappings contained in this map with function f.

f

A function over keys and values

returns

the updated map

Definition Classes
SortedMapOpsMapOps
166. def transpose[B](implicit asIterable: ((K, V)) => collection.Iterable[B]): Iterable[Iterable[B]]

Transposes this immutable map of iterable collections into a immutable map of immutable maps.

Transposes this immutable map of iterable collections into a immutable map of immutable maps.

The resulting collection's type will be guided by the static type of immutable map. For example:

val xs = List(
Set(1, 2, 3),
Set(4, 5, 6)).transpose
// xs == List(
//         List(1, 4),
//         List(2, 5),
//         List(3, 6))

val ys = Vector(
List(1, 2, 3),
List(4, 5, 6)).transpose
// ys == Vector(
//         Vector(1, 4),
//         Vector(2, 5),
//         Vector(3, 6))

Note: Even when applied to a view or a lazy collection it will always force the elements.

B

the type of the elements of each iterable collection.

asIterable

an implicit conversion which asserts that the element type of this immutable map is an Iterable.

returns

a two-dimensional immutable map of immutable maps which has as nth row the nth column of this immutable map.

Definition Classes
IterableOps
Exceptions thrown

IllegalArgumentException if all collections in this immutable map are not of the same size.

167. def unapply(a: K): Option[V]

Tries to extract a B from an A in a pattern matching expression.

Tries to extract a B from an A in a pattern matching expression.

Definition Classes
PartialFunction
168. def unlift: PartialFunction[K, B]

Converts an optional function to a partial function.

Converts an optional function to a partial function.

Implicit
This member is added by an implicit conversion from SortedMap[K, V] toUnliftOps[K, B] performed by method UnliftOps in scala.Function1.This conversion will take place only if V is a subclass of Option[B] (V <: Option[B]).
Definition Classes
UnliftOps
Example:
1. Unlike Function.unlift, this UnliftOps.unlift method can be used in extractors.

val of: Int => Option[String] = { i =>
if (i == 2) {
Some("matched by an optional function")
} else {
None
}
}

util.Random.nextInt(4) match {
case of.unlift(m) => // Convert an optional function to a pattern
println(m)
case _ =>
println("Not matched")
}
169. def unsorted: Map[K, V]
Definition Classes
SortedMapSortedMapOpsSortedMapSortedMapOps
170. def unzip[A1, A2](implicit asPair: ((K, V)) => (A1, A2)): (Iterable[A1], Iterable[A2])

Converts this immutable map of pairs into two collections of the first and second half of each pair.

Converts this immutable map of pairs into two collections of the first and second half of each pair.

val xs = `immutable.Map`(
(1, "one"),
(2, "two"),
(3, "three")).unzip
// xs == (`immutable.Map`(1, 2, 3),
//        `immutable.Map`(one, two, three))
A1

the type of the first half of the element pairs

A2

the type of the second half of the element pairs

asPair

an implicit conversion which asserts that the element type of this immutable map is a pair.

returns

a pair of immutable maps, containing the first, respectively second half of each element pair of this immutable map.

Definition Classes
IterableOps
171. def unzip3[A1, A2, A3](implicit asTriple: ((K, V)) => (A1, A2, A3)): (Iterable[A1], Iterable[A2], Iterable[A3])

Converts this immutable map of triples into three collections of the first, second, and third element of each triple.

Converts this immutable map of triples into three collections of the first, second, and third element of each triple.

val xs = `immutable.Map`(
(1, "one", '1'),
(2, "two", '2'),
(3, "three", '3')).unzip3
// xs == (`immutable.Map`(1, 2, 3),
//        `immutable.Map`(one, two, three),
//        `immutable.Map`(1, 2, 3))
A1

the type of the first member of the element triples

A2

the type of the second member of the element triples

A3

the type of the third member of the element triples

asTriple

an implicit conversion which asserts that the element type of this immutable map is a triple.

returns

a triple of immutable maps, containing the first, second, respectively third member of each element triple of this immutable map.

Definition Classes
IterableOps
172. def updatedWith[V1 >: V](key: K)(remappingFunction: (Option[V]) => Option[V1]): SortedMap[K, V1]

Update a mapping for the specified key and its current optionally-mapped value (Some if there is current mapping, None if not).

Update a mapping for the specified key and its current optionally-mapped value (Some if there is current mapping, None if not).

If the remapping function returns Some(v), the mapping is updated with the new value v. If the remapping function returns None, the mapping is removed (or remains absent if initially absent). If the function itself throws an exception, the exception is rethrown, and the current mapping is left unchanged.

key

the key value

remappingFunction

a partial function that receives current optionally-mapped value and return a new mapping

returns

A new map with the updated mapping with the key

Definition Classes
SortedMapOpsMapOps
173. def valueStepper[S <: Stepper[_]](implicit shape: StepperShape[V, S]): S

Returns a Stepper for the values of this map.

Returns a Stepper for the values of this map. See method stepper.

Definition Classes
MapOps
174. def values

Collects all values of this map in an iterable collection.

Collects all values of this map in an iterable collection.

returns

the values of this map as an iterable.

Definition Classes
MapOps
175. def valuesIterator: Iterator[V]

Creates an iterator for all values in this map.

Creates an iterator for all values in this map.

returns

an iterator over all values that are associated with some key in this map.

Definition Classes
MapOps
176. def valuesIteratorFrom(start: K): Iterator[V]

Creates an iterator over all the values contained in this map that are associated with a key greater than or equal to start according to the ordering of this map.

Creates an iterator over all the values contained in this map that are associated with a key greater than or equal to start according to the ordering of this map. x.valuesIteratorFrom(y) is equivalent to but often more efficient than x.from(y).valuesIterator.

start

The lower bound (inclusive) on the keys to be returned

Definition Classes
SortedMapOps
177. def view: MapView[K, V]

A view over the elements of this collection.

A view over the elements of this collection.

Definition Classes
MapOpsIterableOps
178. final def wait(): Unit
Definition Classes
AnyRef
Annotations
(classOf[java.lang.InterruptedException])
Note

not specified by SLS as a member of AnyRef

179. final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
(classOf[java.lang.InterruptedException])
Note

not specified by SLS as a member of AnyRef

180. final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
(classOf[java.lang.InterruptedException]) ()
Note

not specified by SLS as a member of AnyRef

181. def withDefault[V1 >: V](d: (K) => V1): SortedMap[K, V1]

The same map with a given default function.

The same map with a given default function. Note: The default is only used for apply. Other methods like get, contains, iterator, keys, etc. are not affected by withDefault.

Invoking transformer methods (e.g. map) will not preserve the default value.

d

the function mapping keys to values, used for non-present keys

returns

a wrapper of the map with a default value

Definition Classes
SortedMapMap
182. def withDefaultValue[V1 >: V](d: V1): SortedMap[K, V1]

The same map with a given default value.

The same map with a given default value. Note: The default is only used for apply. Other methods like get, contains, iterator, keys, etc. are not affected by withDefaultValue.

Invoking transformer methods (e.g. map) will not preserve the default value.

d

default value used for non-present keys

returns

a wrapper of the map with a default value

Definition Classes
SortedMapMap
183. def withFilter(p: ((K, V)) => Boolean): SortedMapOps.WithFilter[K, V, [x]Iterable[x], [x, y]Map[x, y], [x, y]SortedMap[x, y]]

Creates a non-strict filter of this immutable map.

Creates a non-strict filter of this immutable map.

Note: the difference between c filter p and c withFilter p is that the former creates a new collection, whereas the latter only restricts the domain of subsequent map, flatMap, foreach, and withFilter operations.

Note: might return different results for different runs, unless the underlying collection type is ordered.

p

the predicate used to test elements.

returns

an object of class WithFilter, which supports map, flatMap, foreach, and withFilter operations. All these operations apply to those elements of this immutable map which satisfy the predicate p.

Definition Classes
SortedMapFactoryDefaultsIterableOps
184. def zip[B](that: IterableOnce[B]): Iterable[((K, V), B)]

Returns a immutable map formed from this immutable map and another iterable collection by combining corresponding elements in pairs.

Returns a immutable map formed from this immutable map and another iterable collection by combining corresponding elements in pairs. If one of the two collections is longer than the other, its remaining elements are ignored.

B

the type of the second half of the returned pairs

that

The iterable providing the second half of each result pair

returns

a new immutable map containing pairs consisting of corresponding elements of this immutable map and that. The length of the returned collection is the minimum of the lengths of this immutable map and that.

Definition Classes
IterableOps
185. def zipAll[A1 >: (K, V), B](that: collection.Iterable[B], thisElem: A1, thatElem: B): Iterable[(A1, B)]

Returns a immutable map formed from this immutable map and another iterable collection by combining corresponding elements in pairs.

Returns a immutable map formed from this immutable map and another iterable collection by combining corresponding elements in pairs. If one of the two collections is shorter than the other, placeholder elements are used to extend the shorter collection to the length of the longer.

that

the iterable providing the second half of each result pair

thisElem

the element to be used to fill up the result if this immutable map is shorter than that.

thatElem

the element to be used to fill up the result if that is shorter than this immutable map.

returns

a new collection of type That containing pairs consisting of corresponding elements of this immutable map and that. The length of the returned collection is the maximum of the lengths of this immutable map and that. If this immutable map is shorter than that, thisElem values are used to pad the result. If that is shorter than this immutable map, thatElem values are used to pad the result.

Definition Classes
IterableOps
186. def zipWithIndex: Iterable[((K, V), Int)]

Zips this immutable map with its indices.

Zips this immutable map with its indices.

returns

A new immutable map containing pairs consisting of all elements of this immutable map paired with their index. Indices start at 0.

Definition Classes
IterableOpsIterableOnceOps
Example:
1. List("a", "b", "c").zipWithIndex == List(("a", 0), ("b", 1), ("c", 2))

1. def +(other: String)
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toany2stringadd[SortedMap[K, V]] performed by method any2stringadd in scala.Predef.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
Definition Classes

### Deprecated Value Members

1. def +[V1 >: V](elem1: (K, V1), elem2: (K, V1), elems: (K, V1)*): SortedMap[K, V1]
Definition Classes
SortedMapOpsMapOps
Annotations
Deprecated

(Since version 2.13.0) Use ++ with an explicit collection argument instead of + with varargs

2. def ++:[V1 >: V](that: IterableOnce[(K, V1)]): Map[K, V1]
Definition Classes
MapOps
Annotations
Deprecated

(Since version 2.13.0) Use ++ instead of ++: for collections of type Iterable

3. def ++:[B >: (K, V)](that: IterableOnce[B]): Iterable[B]
Definition Classes
IterableOps
Annotations
Deprecated

(Since version 2.13.0) Use ++ instead of ++: for collections of type Iterable

4. def -(key1: K, key2: K, keys: K*): SortedMap[K, V]
Definition Classes
MapOps
Annotations
Deprecated

(Since version 2.13.0) Use -- with an explicit collection

5. def /:[B](z: B)(op: (B, (K, V)) => B): B
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)])./:(z)(op)
Definition Classes
IterableOnceExtensionMethods
Annotations
()
Deprecated

(Since version 2.13.0) Use .iterator.foldLeft instead

6. final def /:[B](z: B)(op: (B, (K, V)) => B): B
Definition Classes
IterableOnceOps
Annotations
()
Deprecated

(Since version 2.13.0) Use foldLeft instead of /:

7. def :\[B](z: B)(op: ((K, V), B) => B): B
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).:\(z)(op)
Definition Classes
IterableOnceExtensionMethods
Annotations
()
Deprecated

(Since version 2.13.0) Use .iterator.foldRight instead

8. final def :\[B](z: B)(op: ((K, V), B) => B): B
Definition Classes
IterableOnceOps
Annotations
()
Deprecated

(Since version 2.13.0) Use foldRight instead of :\

9. def aggregate[B](z: => B)(seqop: (B, (K, V)) => B, combop: (B, B) => B): B
Definition Classes
IterableOnceOps
Annotations
Deprecated

(Since version 2.13.0) aggregate is not relevant for sequential collections. Use foldLeft(z)(seqop) instead.

10. def collectFirst[B](f: PartialFunction[(K, V), B]): Option[B]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).collectFirst(f)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.collectFirst(...) instead

11. def companion: IterableFactory[[_]Iterable[_]]
Definition Classes
IterableOps
Annotations
() ()
Deprecated

(Since version 2.13.0) Use iterableFactory instead

12. def compare(k0: K, k1: K): Int

Comparison function that orders keys.

Comparison function that orders keys.

Definition Classes
SortedOps
Annotations
() ()
Deprecated

(Since version 2.13.0) Use ordering.compare instead

13. def copyToBuffer(dest: Buffer[(K, V)]): Unit
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).copyToBuffer(dest)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.copyToBuffer(...) instead

14. final def copyToBuffer[B >: (K, V)](dest: Buffer[B]): Unit
Definition Classes
IterableOnceOps
Annotations
()
Deprecated

(Since version 2.13.0) Use dest ++= coll instead

15. def count(f: ((K, V)) => Boolean): Int
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).count(f)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.count(...) instead

16. def exists(f: ((K, V)) => Boolean)
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).exists(f)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.exists(...) instead

17. def filter(f: ((K, V)) => Boolean): Iterator[(K, V)]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).filter(f)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.filter(...) instead

18. def filterKeys(p: (K) => Boolean): MapView[K, V]

Filters this map by retaining only keys satisfying a predicate.

Filters this map by retaining only keys satisfying a predicate.

p

the predicate used to test keys

returns

an immutable map consisting only of those key value pairs of this map where the key satisfies the predicate p. The resulting map wraps the original map without copying any elements.

Definition Classes
MapOps
Annotations
Deprecated

(Since version 2.13.0) Use .view.filterKeys(f). A future version will include a strict version of this method (for now, .view.filterKeys(p).toMap).

19. def find(p: ((K, V)) => Boolean): Option[(K, V)]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).find(p)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.find instead

20. def flatMap[B](f: ((K, V)) => IterableOnce[B]): IterableOnce[B]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).flatMap(f)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.flatMap instead or consider requiring an Iterable

21. def fold[A1 >: A](z: A1)(op: (A1, A1) => A1): A1
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).fold(z)(op)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.fold instead

22. def foldLeft[B](z: B)(op: (B, (K, V)) => B): B
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).foldLeft(z)(op)
Definition Classes
IterableOnceExtensionMethods
Annotations
()
Deprecated

(Since version 2.13.0) Use .iterator.foldLeft instead

23. def foldRight[B](z: B)(op: ((K, V), B) => B): B
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).foldRight(z)(op)
Definition Classes
IterableOnceExtensionMethods
Annotations
()
Deprecated

(Since version 2.13.0) Use .iterator.foldRight instead

24. def forall(f: ((K, V)) => Boolean)
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).forall(f)
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.forall(...) instead

25. def foreach[U](f: ((K, V)) => U): Unit
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).foreach(f)
Definition Classes
IterableOnceExtensionMethods
Annotations
()
Deprecated

(Since version 2.13.0) Use .iterator.foreach(...) instead

26. def formatted(fmtstr: String)

Returns string formatted according to given format string.

Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).

Implicit
This member is added by an implicit conversion from SortedMap[K, V] toStringFormat[SortedMap[K, V]] performed by method StringFormat in scala.Predef.
Definition Classes
StringFormat
Annotations
()
Deprecated

(Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.

27. final def from(from: K): SortedMap[K, V]

Creates a ranged projection of this collection with no upper-bound.

Creates a ranged projection of this collection with no upper-bound.

from

The lower-bound (inclusive) of the ranged projection.

Definition Classes
SortedOps
Annotations
Deprecated

(Since version 2.13.0) Use rangeFrom

28. def hasDefiniteSize

Tests whether this immutable map is known to have a finite size.

Tests whether this immutable map is known to have a finite size. All strict collections are known to have finite size. For a non-strict collection such as Stream, the predicate returns true if all elements have been computed. It returns false if the stream is not yet evaluated to the end. Non-empty Iterators usually return false even if they were created from a collection with a known finite size.

Note: many collection methods will not work on collections of infinite sizes. The typical failure mode is an infinite loop. These methods always attempt a traversal without checking first that hasDefiniteSize returns true. However, checking hasDefiniteSize can provide an assurance that size is well-defined and non-termination is not a concern.

returns

true if this collection is known to have finite size, false otherwise.

Definition Classes
IterableOnceOps
Annotations
Deprecated

(Since version 2.13.0) Check .knownSize instead of .hasDefiniteSize for more actionable information (see scaladoc for details)

method knownSize for a more useful alternative

29. def isEmpty
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:
(sortedMap: IterableOnceExtensionMethods[(K, V)]).isEmpty
Definition Classes
IterableOnceExtensionMethods
Annotations
Deprecated

(Since version 2.13.0) Use .iterator.isEmpty instead

30. def map[B](f: ((K, V)) => B): IterableOnce[B]
Implicit
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(Since version 2.13.0) Use .iterator.map instead or consider requiring an Iterable

31. def mapValues[W](f: (V) => W): MapView[K, W]

Transforms this map by applying a function to every retrieved value.

Transforms this map by applying a function to every retrieved value.

f

the function used to transform values of this map.

returns

a map view which maps every key of this map to f(this(key)). The resulting map wraps the original map without copying any elements.

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(Since version 2.13.0) Use .view.mapValues(f). A future version will include a strict version of this method (for now, .view.mapValues(f).toMap).

32. def max(implicit ord: math.Ordering[(K, V)]): (K, V)
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(Since version 2.13.0) Use .iterator.max instead

33. def maxBy[B](f: ((K, V)) => B)(implicit cmp: math.Ordering[B]): (K, V)
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(Since version 2.13.0) Use .iterator.maxBy(...) instead

34. def min(implicit ord: math.Ordering[(K, V)]): (K, V)
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(Since version 2.13.0) Use .iterator.min instead

35. def minBy[B](f: ((K, V)) => B)(implicit cmp: math.Ordering[B]): (K, V)
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(Since version 2.13.0) Use .iterator.minBy(...) instead

36. def mkString
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(Since version 2.13.0) Use .iterator.mkString instead

37. def mkString(sep: String)
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(Since version 2.13.0) Use .iterator.mkString instead

38. def mkString(start: String, sep: String, end: String)
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(Since version 2.13.0) Use .iterator.mkString instead

39. def nonEmpty
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(Since version 2.13.0) Use .iterator.nonEmpty instead

40. def product(implicit num: math.Numeric[(K, V)]): (K, V)
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(Since version 2.13.0) Use .iterator.product instead

41. def reduce(f: ((K, V), (K, V)) => (K, V)): (K, V)
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(Since version 2.13.0) Use .iterator.reduce(...) instead

42. def reduceLeft(f: ((K, V), (K, V)) => (K, V)): (K, V)
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(Since version 2.13.0) Use .iterator.reduceLeft(...) instead

43. def reduceLeftOption(f: ((K, V), (K, V)) => (K, V)): Option[(K, V)]
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(Since version 2.13.0) Use .iterator.reduceLeftOption(...) instead

44. def reduceOption(f: ((K, V), (K, V)) => (K, V)): Option[(K, V)]
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(Since version 2.13.0) Use .iterator.reduceOption(...) instead

45. def reduceRight(f: ((K, V), (K, V)) => (K, V)): (K, V)
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(Since version 2.13.0) Use .iterator.reduceRight(...) instead

46. def reduceRightOption(f: ((K, V), (K, V)) => (K, V)): Option[(K, V)]
Implicit
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(Since version 2.13.0) Use .iterator.reduceRightOption(...) instead

47. final def repr: SortedMap[K, V]
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(Since version 2.13.0) Use coll instead of repr in a collection implementation, use the collection value itself from the outside

48. def sameElements[B >: A](that: IterableOnce[B])
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(Since version 2.13.0) Use .iterator.sameElements instead

49. def seq: SortedMap.this.type
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(Since version 2.13.0) Iterable.seq always returns the iterable itself

50. def size: Int
Implicit
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(Since version 2.13.0) Use .iterator.size instead

51. def sum(implicit num: math.Numeric[(K, V)]): (K, V)
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(Since version 2.13.0) Use .iterator.sum instead

52. def to[C1](factory: Factory[(K, V), C1]): C1
Implicit
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(Since version 2.13.0) Use .iterator.to(factory) instead

53. final def to(to: K): SortedMap[K, V]

Create a range projection of this collection with no lower-bound.

Create a range projection of this collection with no lower-bound.

to

The upper-bound (inclusive) of the ranged projection.

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(Since version 2.13.0) Use rangeTo

54. def toArray[B >: A](implicit arg0: ClassTag[B]): Array[B]
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(Since version 2.13.0) Use .iterator.toArray

55. def toBuffer[B >: A]: Buffer[B]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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(Since version 2.13.0) Use .iterator.to(ArrayBuffer) instead

56. def toIndexedSeq: collection.IndexedSeq[(K, V)]
Implicit
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(Since version 2.13.0) Use .iterator.toIndexedSeq instead

57. final def toIterable: collection.Iterable[(K, V)]
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(Since version 2.13.0) Use .iterator.to(Iterable) instead

58. final def toIterable: SortedMap.this.type

returns

This collection as an Iterable[A]. No new collection will be built if this is already an Iterable[A].

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(Since version 2.13.7) toIterable is internal and will be made protected; its name is similar to toList or toSeq, but it doesn't copy non-immutable collections

59. def toIterator: Iterator[(K, V)]
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(Since version 2.13.0) Use .iterator instead

60. final def toIterator: Iterator[(K, V)]
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(Since version 2.13.0) Use .iterator instead of .toIterator

61. def toList: List[(K, V)]
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(Since version 2.13.0) Use .iterator.to(List) instead

62. def toMap[K, V](implicit ev: <:<[(K, V), (K, V)]): Map[K, V]
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(Since version 2.13.0) Use .iterator.to(Map) instead

63. def toSeq: Seq[(K, V)]
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(Since version 2.13.0) Use .iterator.to(Seq) instead

64. def toSet[B >: A]: Set[B]
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(Since version 2.13.0) Use .iterator.to(Set) instead

65. def toStream: Stream[(K, V)]
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(Since version 2.13.0) Use .iterator.to(LazyList) instead

66. final def toStream: Stream[(K, V)]
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(Since version 2.13.0) Use .to(LazyList) instead of .toStream

67. final def toTraversable: collection.Traversable[(K, V)]
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(Since version 2.13.0) Use .iterator.to(Iterable) instead

68. final def toTraversable: collection.Traversable[(K, V)]

Converts this immutable map to an unspecified Iterable.

Converts this immutable map to an unspecified Iterable. Will return the same collection if this instance is already Iterable.

returns

An Iterable containing all elements of this immutable map.

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(Since version 2.13.0) toTraversable is internal and will be made protected; its name is similar to toList or toSeq, but it doesn't copy non-immutable collections

69. def toVector: Vector[(K, V)]
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(Since version 2.13.0) Use .iterator.to(Vector) instead

70. final def until(until: K): SortedMap[K, V]

Creates a ranged projection of this collection with no lower-bound.

Creates a ranged projection of this collection with no lower-bound.

until

The upper-bound (exclusive) of the ranged projection.

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Deprecated

(Since version 2.13.0) Use rangeUntil

71. def view(from: Int, until: Int): View[(K, V)]

A view over a slice of the elements of this collection.

A view over a slice of the elements of this collection.

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(Since version 2.13.0) Use .view.slice(from, until) instead of .view(from, until)

72. def withFilter(f: ((K, V)) => Boolean): Iterator[(K, V)]
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toIterableOnceExtensionMethods[(K, V)] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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(Since version 2.13.0) Use .iterator.withFilter(...) instead

73. def [B](y: B): (SortedMap[K, V], B)
Implicit
This member is added by an implicit conversion from SortedMap[K, V] toArrowAssoc[SortedMap[K, V]] performed by method ArrowAssoc in scala.Predef.This conversion will take place only if V is a subclass of Option[Nothing] (V <: Option[Nothing]).
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(Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.