Scala Standard Library2.13.18 < Back


# Packages

-  package root

  This is the documentation for the Scala standard library.

  This is the documentation for the Scala standard library.

  #### Package structure

  The scala package contains core types like `Int`, `Float`, `Array` or `Option` which are accessible in all Scala compilation units without explicit qualification or imports.

  Notable packages include:

  - `scala.collection` and its sub-packages contain Scala's collections framework
    - `scala.collection.immutable` - Immutable, sequential data-structures such as `Vector`, `List`, `Range`, `HashMap` or `HashSet`
    - `scala.collection.mutable` - Mutable, sequential data-structures such as `ArrayBuffer`, `StringBuilder`, `HashMap` or `HashSet`
    - `scala.collection.concurrent` - Mutable, concurrent data-structures such as `TrieMap`
  - `scala.concurrent` - Primitives for concurrent programming such as `Futures` and `Promises`
  - `scala.io` - Input and output operations
  - `scala.math` - Basic math functions and additional numeric types like `BigInt` and `BigDecimal`
  - `scala.sys` - Interaction with other processes and the operating system
  - `scala.util.matching` - Regular expressions

  Other packages exist. See the complete list on the right.

  Additional parts of the standard library are shipped as separate libraries. These include:

  - `scala.reflect` - Scala's reflection API (scala-reflect.jar)
  - `scala.xml` - XML parsing, manipulation, and serialization (scala-xml.jar)
  - `scala.collection.parallel` - Parallel collections (scala-parallel-collections.jar)
  - `scala.util.parsing` - Parser combinators (scala-parser-combinators.jar)
  - `scala.swing` - A convenient wrapper around Java's GUI framework called Swing (scala-swing.jar)

  #### Automatic imports

  Identifiers in the scala package and the `scala.Predef` object are always in scope by default.

  Some of these identifiers are type aliases provided as shortcuts to commonly used classes. For example, `List` is an alias for `scala.collection.immutable.List`.

  Other aliases refer to classes provided by the underlying platform. For example, on the JVM, `String` is an alias for `java.lang.String`.

  Definition Classes
    root
-  package scala

  Core Scala types.

  Core Scala types. They are always available without an explicit import.

  Definition Classes
    root
-  package collection
  Definition Classes
    scala
-  package concurrent
  Definition Classes
    collection
-  package convert
  Definition Classes
    collection
-  package generic
  Definition Classes
    collection
-  package immutable
  Definition Classes
    collection
-  package mutable
  Definition Classes
    collection
- +:
- :+
- AbstractIndexedSeqView
- AbstractIterable
- AbstractIterator
- AbstractMap
- AbstractMapView
- AbstractSeq
- AbstractSeqView
- AbstractSet
- AbstractView
- AnyStepper
- ArrayOps
- BitSet
- BitSetOps
- BufferedIterator
- BuildFrom
- BuildFromLowPriority1
- BuildFromLowPriority2
- ClassTagIterableFactory
- ClassTagSeqFactory
- DefaultMap
- DoubleStepper
- EvidenceIterableFactory
- EvidenceIterableFactoryDefaults
- Factory
- Hashing
- IndexedSeq
- IndexedSeqOps
- IndexedSeqView
- IntStepper
- Iterable
- IterableFactory
- IterableFactoryDefaults
- IterableOnce
- IterableOnceExtensionMethods
- IterableOnceOps
- IterableOps
- Iterator
- JavaConverters
- LazyZip2
- LazyZip3
- LazyZip4
- LinearSeq
- LinearSeqOps
- LongStepper
- Map
- MapFactory
- MapFactoryDefaults
- MapOps
- MapView
- MapViewFactory
- Searching
- Seq
- SeqFactory
- SeqMap
- SeqOps
- SeqView
- Set
- SetOps
- SortedIterableFactory
- SortedMap
- SortedMapFactory
- SortedMapFactoryDefaults
- SortedMapOps
- SortedOps
- SortedSet
- SortedSetFactoryDefaults
- SortedSetOps
- SpecificIterableFactory
- Stepper
- StepperShape
- StepperShapeLowPriority1
- StepperShapeLowPriority2
- StrictOptimizedClassTagSeqFactory
- StrictOptimizedIterableOps
- StrictOptimizedLinearSeqOps
- StrictOptimizedMapOps
- StrictOptimizedSeqFactory
- StrictOptimizedSeqOps
- StrictOptimizedSetOps
- StrictOptimizedSortedMapOps
- StrictOptimizedSortedSetOps
- StringOps
- StringView
- View
- WithFilter

o

scala.collection

# View

###
Companion trait View

#### object View extends IterableFactory[View]

This object reifies operations on views as case classes

Annotations
  @SerialVersionUID()
Source
  View.scala

Linear Supertypes
IterableFactory[View], java.io.Serializable, AnyRef, Any

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. View
2. IterableFactory
3. Serializable
4. AnyRef
5. Any

1. Hide All
2. Show All

Visibility

1. Public
2. Protected

### Type Members

1.  class Appended[+A] extends AbstractView[A]

   A view that appends an element to its elements

   A view that appends an element to its elements

   Annotations
     @SerialVersionUID()
2.  class Collect[+A, B] extends AbstractView[B]

   A view that collects elements of the underlying collection.

   A view that collects elements of the underlying collection.

   Annotations
     @SerialVersionUID()
3.  class Concat[A] extends AbstractView[A]

   A view that concatenates elements of the prefix collection or iterator with the elements of the suffix collection or iterator.

   A view that concatenates elements of the prefix collection or iterator with the elements of the suffix collection or iterator.

   Annotations
     @SerialVersionUID()
4.  class DistinctBy[A, B] extends AbstractView[A]

   A view that removes the duplicated elements as determined by the transformation function `f`

   A view that removes the duplicated elements as determined by the transformation function `f`

   Annotations
     @SerialVersionUID()
5.  class Drop[A] extends AbstractView[A]

   A view that drops leading elements of the underlying collection.

   A view that drops leading elements of the underlying collection.

   Annotations
     @SerialVersionUID()
6.  class DropRight[A] extends AbstractView[A]

   A view that drops trailing elements of the underlying collection.

   A view that drops trailing elements of the underlying collection.

   Annotations
     @SerialVersionUID()
7.  class DropWhile[A] extends AbstractView[A]
   Annotations
     @SerialVersionUID()
8.  class Elems[A] extends AbstractView[A]

   A view with given elements

   A view with given elements

   Annotations
     @SerialVersionUID()
9.  class Fill[A] extends AbstractView[A]

   A view containing the results of some element computation a number of times.

   A view containing the results of some element computation a number of times.

   Annotations
     @SerialVersionUID()
10.  class Filter[A] extends AbstractView[A]

    A view that filters an underlying collection.

    A view that filters an underlying collection.

    Annotations
      @SerialVersionUID()
11.  class FlatMap[A, B] extends AbstractView[B]

    A view that flatmaps elements of the underlying collection.

    A view that flatmaps elements of the underlying collection.

    Annotations
      @SerialVersionUID()
12.  class Iterate[A] extends AbstractView[A]

    A view containing repeated applications of a function to a start value

    A view containing repeated applications of a function to a start value

    Annotations
      @SerialVersionUID()
13.  class LeftPartitionMapped[A, A1, A2] extends AbstractView[A1]
    Annotations
      @SerialVersionUID()
14.  class Map[+A, +B] extends AbstractView[B]

    A view that maps elements of the underlying collection.

    A view that maps elements of the underlying collection.

    Annotations
      @SerialVersionUID()
15.  class PadTo[A] extends AbstractView[A]
    Annotations
      @SerialVersionUID()
16.  class Prepended[+A] extends AbstractView[A]

    A view that prepends an element to its elements

    A view that prepends an element to its elements

    Annotations
      @SerialVersionUID()
17.  class RightPartitionMapped[A, A1, A2] extends AbstractView[A2]
    Annotations
      @SerialVersionUID()
18.  class ScanLeft[+A, +B] extends AbstractView[B]
    Annotations
      @SerialVersionUID()
19.  class Single[A] extends AbstractView[A]

    A view with exactly one element

    A view with exactly one element

    Annotations
      @SerialVersionUID()
20.  type SomeIterableOps[A] = IterableOps[A, AnyConstr, _]

    An `IterableOps` whose collection type and collection type constructor are unknown

21.  class Tabulate[A] extends AbstractView[A]

    A view containing values of a given function over a range of integer values starting from 0.

    A view containing values of a given function over a range of integer values starting from 0.

    Annotations
      @SerialVersionUID()
22.  class Take[+A] extends AbstractView[A]

    A view that takes leading elements of the underlying collection.

    A view that takes leading elements of the underlying collection.

    Annotations
      @SerialVersionUID()
23.  class TakeRight[+A] extends AbstractView[A]

    A view that takes trailing elements of the underlying collection.

    A view that takes trailing elements of the underlying collection.

    Annotations
      @SerialVersionUID()
24.  class TakeWhile[A] extends AbstractView[A]
    Annotations
      @SerialVersionUID()
25.  class Unfold[A, S] extends AbstractView[A]

    A view that uses a function `f` to produce elements of type `A` and update an internal state `S`.

    A view that uses a function `f` to produce elements of type `A` and update an internal state `S`.

    Annotations
      @SerialVersionUID()
26.  class Updated[A] extends AbstractView[A]
    Annotations
      @SerialVersionUID()
27.  class Zip[A, B] extends AbstractView[(A, B)]

    A view that zips elements of the underlying collection with the elements of another collection.

    A view that zips elements of the underlying collection with the elements of another collection.

    Annotations
      @SerialVersionUID()
28.  class ZipAll[A, B] extends AbstractView[(A, B)]

    A view that zips elements of the underlying collection with the elements of another collection.

    A view that zips elements of the underlying collection with the elements of another collection. 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.

    Annotations
      @SerialVersionUID()
29.  class ZipWithIndex[A] extends AbstractView[(A, Int)]
    Annotations
      @SerialVersionUID()

### Value Members

1.  final def !=(arg0: Any): Boolean

   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 ==(arg0: Any): Boolean

   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
4.  def apply[A](xs: A*): View[A]

   Creates a view with the specified elements.

   Creates a view with the specified elements.

   A

     the type of the view's elements

   returns

     a new view with elements `elems`

   Definition Classes
     View → IterableFactory
5.  final def asInstanceOf[T0]: T0

   Forces the compiler to treat the receiver object as having type `T0`, even though doing so may violate type safety.

   Forces the compiler to treat the receiver object as having type `T0`, even though doing so may violate type safety.

   This method is useful when you believe you have type information the compiler doesn't, and it also isn't possible to check the type at runtime. In such situations, skipping type safety is the only option.

   It is platform dependent whether `asInstanceOf` has any effect at runtime. It might do a runtime type test on the erasure of `T0`, insert a conversion (such as boxing/unboxing), fill in a default value, or do nothing at all.

   In particular, `asInstanceOf` is not a type test. It does **not** mean:

       this match {
        case x: T0 => x
        case _     => throw ClassCastException("...")

   Use pattern matching or isInstanceOf for type testing instead.

   Situations where `asInstanceOf` is useful:

   - when flow analysis fails to deduce `T0` automatically
   - when down-casting a type parameter or an abstract type member (which cannot be checked at runtime due to type erasure) If there is any doubt and you are able to type test instead, you should do so.

   Be careful of using `asInstanceOf` when `T0` is a primitive type. When `T0` is primitive, `asInstanceOf` may insert a conversion instead of a type test. If your intent is to convert, use a `toT` method (`x.toChar`, `x.toByte`, etc.).

   returns

     the receiver object.

   Definition Classes
     Any
   Exceptions thrown

     `ClassCastException` if the receiver is not an instance of the erasure of `T0`, if that can be checked on this platform

6.  def clone(): AnyRef

   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
     @throws(classOf[java.lang.CloneNotSupportedException]) @native()
   Note

     not specified by SLS as a member of AnyRef

7.  def concat[A](xss: Iterable[A]*): View[A]

   Concatenates all argument collections into a single view.

   Concatenates all argument collections into a single view.

   xss

     the collections that are to be concatenated.

   returns

     the concatenation of all the collections.

   Definition Classes
     IterableFactory
8.  def empty[A]: View[A]

   An empty view

   An empty view

   A

     the type of the view's elements

   Definition Classes
     View → IterableFactory
9.  final def eq(arg0: AnyRef): Boolean

   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
10.  def equals(arg0: AnyRef): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to `eq`.

    See also `equals` in scala.Any.

    returns

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

    Definition Classes
      AnyRef → Any
11.  def fill[A](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(elem: => A): View[View[View[View[View[A]]]]]

    Produces a five-dimensional view containing the results of some element computation a number of times.

    Produces a five-dimensional view containing the results of some element computation a number of times.

    n1

      the number of elements in the 1st dimension

    n2

      the number of elements in the 2nd dimension

    n3

      the number of elements in the 3rd dimension

    n4

      the number of elements in the 4th dimension

    n5

      the number of elements in the 5th dimension

    elem

      the element computation

    returns

      A view that contains the results of `n1 x n2 x n3 x n4 x n5` evaluations of `elem`.

    Definition Classes
      IterableFactory
12.  def fill[A](n1: Int, n2: Int, n3: Int, n4: Int)(elem: => A): View[View[View[View[A]]]]

    Produces a four-dimensional view containing the results of some element computation a number of times.

    Produces a four-dimensional view containing the results of some element computation a number of times.

    n1

      the number of elements in the 1st dimension

    n2

      the number of elements in the 2nd dimension

    n3

      the number of elements in the 3rd dimension

    n4

      the number of elements in the 4th dimension

    elem

      the element computation

    returns

      A view that contains the results of `n1 x n2 x n3 x n4` evaluations of `elem`.

    Definition Classes
      IterableFactory
13.  def fill[A](n1: Int, n2: Int, n3: Int)(elem: => A): View[View[View[A]]]

    Produces a three-dimensional view containing the results of some element computation a number of times.

    Produces a three-dimensional view containing the results of some element computation a number of times.

    n1

      the number of elements in the 1st dimension

    n2

      the number of elements in the 2nd dimension

    n3

      the number of elements in the 3rd dimension

    elem

      the element computation

    returns

      A view that contains the results of `n1 x n2 x n3` evaluations of `elem`.

    Definition Classes
      IterableFactory
14.  def fill[A](n1: Int, n2: Int)(elem: => A): View[View[A]]

    Produces a two-dimensional view containing the results of some element computation a number of times.

    Produces a two-dimensional view containing the results of some element computation a number of times.

    n1

      the number of elements in the 1st dimension

    n2

      the number of elements in the 2nd dimension

    elem

      the element computation

    returns

      A view that contains the results of `n1 x n2` evaluations of `elem`.

    Definition Classes
      IterableFactory
15.  def fill[A](n: Int)(elem: => A): View[A]

    Produces a view containing the results of some element computation a number of times.

    Produces a view containing the results of some element computation a number of times.

    n

      the number of elements contained in the view.

    elem

      the element computation

    returns

      A view that contains the results of `n` evaluations of `elem`.

    Definition Classes
      IterableFactory
16.  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
      @throws(classOf[java.lang.Throwable])
    Note

      not specified by SLS as a member of AnyRef

17.  def from[E](it: IterableOnce[E]): View[E]

    E

      View element type

    it

      The `IterableOnce` to view. A proper `Iterable` is used directly. If it is really only `IterableOnce` it gets memoized on the first traversal.

    returns

      A view iterating over the given `Iterable`

    Definition Classes
      View → IterableFactory
18.  def fromIteratorProvider[A](it: () => Iterator[A]): View[A]

    A

      View element type

    it

      Function creating the iterator to be used by the view. This function must always return a fresh `Iterator`, otherwise the resulting view will be effectively iterable only once.

    returns

      A `View[A]` whose underlying iterator is provided by the `it` parameter-less function.

19.  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
      @native()
20.  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
      AnyRef → Any
    Annotations
      @native()
21.  final def isInstanceOf[T0]: Boolean

    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.

22.  implicit def iterableFactory[A]: Factory[A, View[A]]
    Definition Classes
      IterableFactory
23.  def iterate[A](start: A, len: Int)(f: (A) => A): View[A]

    Produces a view containing repeated applications of a function to a start value.

    Produces a view containing repeated applications of a function to a start value.

    start

      the start value of the view

    len

      the number of elements contained in the view

    f

      the function that's repeatedly applied

    returns

      a view with `len` values in the sequence `start, f(start), f(f(start)), ...`

    Definition Classes
      IterableFactory
24.  final def ne(arg0: AnyRef): Boolean

    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
25.  def newBuilder[A]: Builder[A, View[A]]

    A

      the type of the view’s elements

    returns

      A builder for View objects.

    Definition Classes
      View → IterableFactory
26.  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
      @native()
    Note

      not specified by SLS as a member of AnyRef

27.  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
      @native()
    Note

      not specified by SLS as a member of AnyRef

28.  def range[A](start: A, end: A, step: A)(implicit arg0: Integral[A]): View[A]

    Produces a view containing equally spaced values in some integer interval.

    Produces a view containing equally spaced values in some integer interval.

    start

      the start value of the view

    end

      the end value of the view (the first value NOT contained)

    step

      the difference between successive elements of the view (must be positive or negative)

    returns

      a view with values `start, start + step, ...` up to, but excluding `end`

    Definition Classes
      IterableFactory
29.  def range[A](start: A, end: A)(implicit arg0: Integral[A]): View[A]

    Produces a view containing a sequence of increasing of integers.

    Produces a view containing a sequence of increasing of integers.

    start

      the first element of the view

    end

      the end value of the view (the first value NOT contained)

    returns

      a view with values `start, start + 1, ..., end - 1`

    Definition Classes
      IterableFactory
30.  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
31.  def tabulate[A](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(f: (Int, Int, Int, Int, Int) => A): View[View[View[View[View[A]]]]]

    Produces a five-dimensional view containing values of a given function over ranges of integer values starting from 0.

    Produces a five-dimensional view containing values of a given function over ranges of integer values starting from 0.

    n1

      the number of elements in the 1st dimension

    n2

      the number of elements in the 2nd dimension

    n3

      the number of elements in the 3rd dimension

    n4

      the number of elements in the 4th dimension

    n5

      the number of elements in the 5th dimension

    f

      The function computing element values

    returns

      A view consisting of elements `f(i1, i2, i3, i4, i5)` for `0 <= i1 < n1`, `0 <= i2 < n2`, `0 <= i3 < n3`, `0 <= i4 < n4`, and `0 <= i5 < n5`.

    Definition Classes
      IterableFactory
32.  def tabulate[A](n1: Int, n2: Int, n3: Int, n4: Int)(f: (Int, Int, Int, Int) => A): View[View[View[View[A]]]]

    Produces a four-dimensional view containing values of a given function over ranges of integer values starting from 0.

    Produces a four-dimensional view containing values of a given function over ranges of integer values starting from 0.

    n1

      the number of elements in the 1st dimension

    n2

      the number of elements in the 2nd dimension

    n3

      the number of elements in the 3rd dimension

    n4

      the number of elements in the 4th dimension

    f

      The function computing element values

    returns

      A view consisting of elements `f(i1, i2, i3, i4)` for `0 <= i1 < n1`, `0 <= i2 < n2`, `0 <= i3 < n3`, and `0 <= i4 < n4`.

    Definition Classes
      IterableFactory
33.  def tabulate[A](n1: Int, n2: Int, n3: Int)(f: (Int, Int, Int) => A): View[View[View[A]]]

    Produces a three-dimensional view containing values of a given function over ranges of integer values starting from 0.

    Produces a three-dimensional view containing values of a given function over ranges of integer values starting from 0.

    n1

      the number of elements in the 1st dimension

    n2

      the number of elements in the 2nd dimension

    n3

      the number of elements in the 3rd dimension

    f

      The function computing element values

    returns

      A view consisting of elements `f(i1, i2, i3)` for `0 <= i1 < n1`, `0 <= i2 < n2`, and `0 <= i3 < n3`.

    Definition Classes
      IterableFactory
34.  def tabulate[A](n1: Int, n2: Int)(f: (Int, Int) => A): View[View[A]]

    Produces a two-dimensional view containing values of a given function over ranges of integer values starting from 0.

    Produces a two-dimensional view containing values of a given function over ranges of integer values starting from 0.

    n1

      the number of elements in the 1st dimension

    n2

      the number of elements in the 2nd dimension

    f

      The function computing element values

    returns

      A view consisting of elements `f(i1, i2)` for `0 <= i1 < n1` and `0 <= i2 < n2`.

    Definition Classes
      IterableFactory
35.  def tabulate[A](n: Int)(f: (Int) => A): View[A]

    Produces a view containing values of a given function over a range of integer values starting from 0.

    Produces a view containing values of a given function over a range of integer values starting from 0.

    n

      The number of elements in the view

    f

      The function computing element values

    returns

      A view consisting of elements `f(0), ..., f(n -1)`

    Definition Classes
      IterableFactory
36.  def toString(): String

    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
      AnyRef → Any
37.  def unfold[A, S](init: S)(f: (S) => Option[(A, S)]): View[A]

    Produces a view that uses a function `f` to produce elements of type `A` and update an internal state of type `S`.

    Produces a view that uses a function `f` to produce elements of type `A` and update an internal state of type `S`.

    A

      Type of the elements

    S

      Type of the internal state

    init

      State initial value

    f

      Computes the next element (or returns `None` to signal the end of the collection)

    returns

      a view that produces elements using `f` until `f` returns `None`

    Definition Classes
      IterableFactory
38.  final def wait(): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
    Note

      not specified by SLS as a member of AnyRef

39.  final def wait(arg0: Long, arg1: Int): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
    Note

      not specified by SLS as a member of AnyRef

40.  final def wait(arg0: Long): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException]) @native()
    Note

      not specified by SLS as a member of AnyRef

41.  case object Empty extends AbstractView[Nothing] with Product with Serializable

    The empty view

    The empty view

    Annotations
      @SerialVersionUID()
42.  object Filter extends java.io.Serializable

### Inherited from IterableFactory[View]

### Inherited from java.io.Serializable

### Inherited from AnyRef

### Inherited from Any

### Ungrouped