Scala Standard Library2.13.0 < Back
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# 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
-  object View extends IterableFactory[View]

  This object reifies operations on views as case classes

  This object reifies operations on views as case classes

  Definition Classes
    collection
  Annotations
    @SerialVersionUID()
- Appended
- Collect
- Concat
- DistinctBy
- Drop
- DropRight
- DropWhile
- Elems
- Empty
- Fill
- Filter
- FlatMap
- Iterate
- LeftPartitionMapped
- Map
- PadTo
- Prepended
- RightPartitionMapped
- ScanLeft
- Single
- Tabulate
- Take
- TakeRight
- TakeWhile
- Unfold
- Updated
- Zip
- ZipAll
- ZipWithIndex

c

scala.collection.View

# TakeRight

###

#### class TakeRight[+A] extends AbstractView[A]

A view that takes trailing elements of the underlying collection.

Annotations
  @SerialVersionUID()
Source
  View.scala

Linear Supertypes
AbstractView[A], View[A], java.io.Serializable, AbstractIterable[A], Iterable[A], IterableFactoryDefaults[A, [x]View[x]], IterableOps[A, [_]View[_], View[A]], IterableOnceOps[A, [_]View[_], View[A]], IterableOnce[A], AnyRef, Any
Known Subclasses
TakeRight, TakeRight
Type Hierarchy

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. TakeRight
2. AbstractView
3. View
4. Serializable
5. AbstractIterable
6. Iterable
7. IterableFactoryDefaults
8. IterableOps
9. IterableOnceOps
10. IterableOnce
11. AnyRef
12. Any

Implicitly

1. by iterableOnceExtensionMethods
2. by any2stringadd
3. by StringFormat
4. by Ensuring
5. by ArrowAssoc

1. Hide All
2. Show All

Visibility

1. Public
2. All

### Instance Constructors

1.  new TakeRight(underlying: SomeIterableOps[A], n: Int)

### 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.  def +(other: String): String
   Implicit
     This member is added by an implicit conversion from TakeRight[A] toany2stringadd[TakeRight[A]] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  final def ++[B >: A](suffix: IterableOnce[B]): View[B]

   Alias for `concat`

   Alias for `concat`

   Definition Classes
     IterableOps
   Annotations
     @inline()
5.  def ->[B](y: B): (TakeRight[A], B)
   Implicit
     This member is added by an implicit conversion from TakeRight[A] toArrowAssoc[TakeRight[A]] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
6.  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
7.  final def addString(b: mutable.StringBuilder): mutable.StringBuilder

   Appends all elements of this collection to a string builder.

   Appends all elements of this collection to a string builder. The written text consists of the string representations (w.r.t. the method `toString`) of all elements of this collection 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 =

       scala> val h = a.addString(b)
       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
     @inline()
8.  final def addString(b: mutable.StringBuilder, sep: String): mutable.StringBuilder

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

   Appends all elements of this collection 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 collection, 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, ", ")
       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
     @inline()
9.  def addString(b: mutable.StringBuilder, start: String, sep: String, end: String): mutable.StringBuilder

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

   Appends all elements of this collection 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 collection 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)

   b

     the string builder to which elements are appended.

   start

     the starting string.

   sep

     the separator string.

   end

     the ending string.

   returns

     the string builder `b` to which elements were appended.

   Definition Classes
     IterableOnceOps
10.  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

      the receiver object.

    Definition Classes
      Any
    Exceptions thrown

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

11.  def className: String

    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 iterable collection. By default the string prefix is the simple name of the collection class iterable collection.

    Attributes
      protected[this]
    Definition Classes
      Iterable
12.  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[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.CloneNotSupportedException]) @native()
    Note

      not specified by SLS as a member of AnyRef

13.  final def coll: TakeRight.this.type

    returns

      This collection as a `C`.

    Attributes
      protected
    Definition Classes
      Iterable → IterableOps
14.  def collect[B](pf: PartialFunction[A, B]): View[B]

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

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

    B

      the element type of the returned iterable collection.

    pf

      the partial function which filters and maps the iterable collection.

    returns

      a new iterable collection 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
      IterableOps → IterableOnceOps
    Note

      Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

15.  def collectFirst[B](pf: PartialFunction[A, B]): Option[B]

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

    Finds the first element of the collection 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)`

16.  def concat[B >: A](suffix: IterableOnce[B]): View[B]

    Returns a new iterable collection containing the elements from the left hand operand followed by the elements from the right hand operand.

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

    B

      the element type of the returned collection.

    suffix

      the traversable to append.

    returns

      a new iterable collection which contains all elements of this iterable collection followed by all elements of `suffix`.

    Definition Classes
      IterableOps
17.  def copyToArray[B >: A](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 collection.

    Copying will stop once either all the elements of this collection 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. Note: will not terminate for infinite-sized collections.

18.  def copyToArray[B >: A](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 collection.

    Copying will stop once either all the elements of this collection 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 Note: will not terminate for infinite-sized collections.

    Definition Classes
      IterableOnceOps
19.  def copyToArray[B >: A](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 collection.

    Copying will stop once either all the elements of this collection 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 Note: will not terminate for infinite-sized collections.

    Definition Classes
      IterableOnceOps
20.  def corresponds[B](that: IterableOnce[B])(p: (A, B) => Boolean): 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.

    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
21.  def count(p: (A) => Boolean): Int

    Counts the number of elements in the collection which satisfy a predicate.

    Counts the number of elements in the collection which satisfy a predicate.

    p

      the predicate used to test elements.

    returns

      the number of elements satisfying the predicate `p`.

    Definition Classes
      IterableOnceOps
22.  def drop(n: Int): View[A]

    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 iterable collection.

    returns

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

    Definition Classes
      IterableOps → IterableOnceOps
    Note

      Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

23.  def dropRight(n: Int): View[A]

    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 iterable collection.

    returns

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

    Definition Classes
      IterableOps
24.  def dropWhile(p: (A) => Boolean): View[A]

    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 iterable collection whose first element does not satisfy the predicate `p`.

    Definition Classes
      IterableOps → IterableOnceOps
    Note

      Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

25.  def empty: View[A]

    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
      View → IterableFactoryDefaults → IterableOps
26.  def ensuring(cond: (TakeRight[A]) => Boolean, msg: => Any): TakeRight[A]
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toEnsuring[TakeRight[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
27.  def ensuring(cond: (TakeRight[A]) => Boolean): TakeRight[A]
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toEnsuring[TakeRight[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
28.  def ensuring(cond: Boolean, msg: => Any): TakeRight[A]
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toEnsuring[TakeRight[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
29.  def ensuring(cond: Boolean): TakeRight[A]
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toEnsuring[TakeRight[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
30.  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
31.  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
32.  def exists(p: (A) => Boolean): Boolean

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

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

    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 collection, otherwise `false`

    Definition Classes
      IterableOnceOps
33.  def filter(pred: (A) => Boolean): View[A]

    Selects all elements of this iterable collection which satisfy a predicate.

    Selects all elements of this iterable collection which satisfy a predicate.

    returns

      a new iterator consisting of all elements of this iterable collection that satisfy the given predicate `p`. The order of the elements is preserved.

    Definition Classes
      IterableOps → IterableOnceOps
34.  def filterNot(pred: (A) => Boolean): View[A]

    Selects all elements of this iterable collection which do not satisfy a predicate.

    Selects all elements of this iterable collection which do not satisfy a predicate.

    pred

      the predicate used to test elements.

    returns

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

    Definition Classes
      IterableOps → IterableOnceOps
35.  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[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
    Note

      not specified by SLS as a member of AnyRef

36.  def find(p: (A) => Boolean): Option[A]

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

    Finds the first element of the collection 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 collection that satisfies `p`, or `None` if none exists.

    Definition Classes
      IterableOnceOps
37.  def flatMap[B](f: (A) => IterableOnce[B]): View[B]

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

    Builds a new iterable collection by applying a function to all elements of this iterable collection 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 iterable collection. 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 iterable collection resulting from applying the given collection-valued function `f` to each element of this iterable collection and concatenating the results.

    Definition Classes
      IterableOps → IterableOnceOps
    Note

      Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

38.  def flatten[B](implicit asIterable: (A) => IterableOnce[B]): View[B]

    Converts this iterable collection of traversable collections into a iterable collection formed by the elements of these traversable collections.

    Converts this iterable collection of traversable collections into a iterable collection formed by the elements of these traversable collections.

    The resulting collection's type will be guided by the type of iterable collection. 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 traversable collection.

    asIterable

      an implicit conversion which asserts that the element type of this iterable collection is a `GenTraversable`.

    returns

      a new iterable collection resulting from concatenating all element iterable collections.

    Definition Classes
      IterableOps → IterableOnceOps
    Note

      Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

39.  def fold[A1 >: A](z: A1)(op: (A1, A1) => A1): A1

    Folds the elements of this collection using the specified associative binary operator.

    Folds the elements of this collection 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 collection is empty.

    Definition Classes
      IterableOnceOps
40.  def foldLeft[B](z: B)(op: (B, A) => B): B

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

    Applies a binary operator to a start value and all elements of this collection, 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 collection, going left to right with the start value `z` on the left:

          op(...op(z, x_1), x_2, ..., x_n)

      where `x1, ..., xn` are the elements of this collection. Returns `z` if this collection is empty.

    Definition Classes
      IterableOnceOps
41.  def foldRight[B](z: B)(op: (A, B) => B): B

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

    Applies a binary operator to all elements of this collection 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 collection, going right to left with the start value `z` on the right:

          op(x_1, op(x_2, ... op(x_n, z)...))

      where `x1, ..., xn` are the elements of this collection. Returns `z` if this collection is empty.

    Definition Classes
      IterableOnceOps
42.  def forall(p: (A) => Boolean): Boolean

    Tests whether a predicate holds for all elements of this collection.

    Tests whether a predicate holds for all elements of this collection.

    Note: may not terminate for infinite-sized collections.

    p

      the predicate used to test elements.

    returns

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

    Definition Classes
      IterableOnceOps
43.  def foreach[U](f: (A) => 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
44.  def formatted(fmtstr: String): 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 TakeRight[A] toStringFormat[TakeRight[A]] performed by method StringFormat in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()
45.  def fromSpecific(coll: IterableOnce[A]): View[A]

    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
      IterableFactoryDefaults → IterableOps
    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 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.

46.  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()
47.  def groupBy[K](f: (A) => K): immutable.Map[K, View[A]]

    Partitions this iterable collection into a map of iterable collections according to some discriminator function.

    Partitions this iterable collection into a map of iterable collections 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 iterable collections 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 iterable collection of those elements `x` for which `f(x)` equals `k`.

    Definition Classes
      IterableOps
48.  def groupMap[K, B](key: (A) => K)(f: (A) => B): immutable.Map[K, View[B]]

    Partitions this iterable collection into a map of iterable collections according to a discriminator function `key`.

    Partitions this iterable collection into a map of iterable collections 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
49.  def groupMapReduce[K, B](key: (A) => K)(f: (A) => B)(reduce: (B, B) => B): immutable.Map[K, B]

    Partitions this iterable collection into a map according to a discriminator function `key`.

    Partitions this iterable collection into a map according to a discriminator function `key`. All the values that have the same discriminator are then transformed by the `value` 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
50.  def grouped(size: Int): Iterator[View[A]]

    Partitions elements in fixed size iterable collections.

    Partitions elements in fixed size iterable collections.

    size

      the number of elements per group

    returns

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

    Definition Classes
      IterableOps
    See also

      scala.collection.Iterator, method `grouped`

51.  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()
52.  def head: A

    Selects the first element of this iterable collection.

    Selects the first element of this iterable collection.

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

    returns

      the first element of this iterable collection.

    Definition Classes
      IterableOps
    Exceptions thrown

      `NoSuchElementException` if the iterable collection is empty.

53.  def headOption: Option[A]

    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 iterable collection if it is nonempty, `None` if it is empty.

    Definition Classes
      IterableOps
54.  def init: View[A]

    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
55.  def inits: Iterator[View[A]]

    Iterates over the inits of this iterable collection.

    Iterates over the inits of this iterable collection. The first value will be this iterable collection and the final one will be an empty iterable collection, 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 iterable collection

    Definition Classes
      IterableOps
    Example:

    1. `List(1,2,3).inits = Iterator(List(1,2,3), List(1,2), List(1), Nil)`

56.  def isEmpty: Boolean

    Tests whether the view is empty.

    Tests whether the view is empty.

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

    returns

      `true` if the view contains no elements, `false` otherwise.

    Definition Classes
      TakeRight → IterableOnceOps
57.  final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object is `T0`.

    Test whether the dynamic type of the receiver object is `T0`.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression `1.isInstanceOf[String]` will return `false`, while the expression `List(1).isInstanceOf[List[String]]` will return `true`. 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 specified type.

    returns

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

    Definition Classes
      Any
58.  def isTraversableAgain: Boolean

    Tests whether this iterable collection can be repeatedly traversed.

    Tests whether this iterable collection 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
      IterableOps → IterableOnceOps
59.  def iterableFactory: IterableFactory[View]

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

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

    Definition Classes
      View → Iterable → IterableOps
    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).

60.  def iterator: Iterator[A]

    Iterator can be used only once

    Iterator can be used only once

    Definition Classes
      TakeRight → IterableOnce
61.  def knownSize: Int

    returns

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

    Definition Classes
      TakeRight → IterableOnce
62.  def last: A

    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 iterable collection.

    Definition Classes
      IterableOps
    Exceptions thrown

      `NoSuchElementException` If the iterable collection is empty.

63.  def lastOption: Option[A]

    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 iterable collection$ if it is nonempty, `None` if it is empty.

    Definition Classes
      IterableOps
64.  def lazyZip[B](that: Iterable[B]): LazyZip2[A, B, TakeRight.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
65.  def map[B](f: (A) => B): View[B]

    Builds a new iterable collection by applying a function to all elements of this iterable collection.

    Builds a new iterable collection by applying a function to all elements of this iterable collection.

    B

      the element type of the returned iterable collection.

    f

      the function to apply to each element.

    returns

      a new iterable collection resulting from applying the given function `f` to each element of this iterable collection and collecting the results.

    Definition Classes
      IterableOps → IterableOnceOps
    Note

      Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

66.  def max[B >: A](implicit ord: math.Ordering[B]): A

    Finds the largest element.

    Finds the largest element.

    B

      The type over which the ordering is defined.

    ord

      An ordering to be used for comparing elements.

    returns

      the largest element of this collection with respect to the ordering `ord`.

    Definition Classes
      IterableOnceOps
    Exceptions thrown

      `UnsupportedOperationException` if this collection is empty.

67.  def maxBy[B](f: (A) => B)(implicit cmp: math.Ordering[B]): A

    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.

    B

      The result type of the function f.

    f

      The measuring function.

    cmp

      An ordering to be used for comparing elements.

    returns

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

    Definition Classes
      IterableOnceOps
    Exceptions thrown

      `UnsupportedOperationException` if this collection is empty.

68.  def maxByOption[B](f: (A) => B)(implicit cmp: math.Ordering[B]): Option[A]

    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.

    B

      The result type of the function f.

    f

      The measuring function.

    cmp

      An ordering to be used for comparing elements.

    returns

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

    Definition Classes
      IterableOnceOps
69.  def maxOption[B >: A](implicit ord: math.Ordering[B]): Option[A]

    Finds the largest element.

    Finds the largest element.

    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 collection with respect to the ordering `ord`.

    Definition Classes
      IterableOnceOps
70.  def min[B >: A](implicit ord: math.Ordering[B]): A

    Finds the smallest element.

    Finds the smallest element.

    B

      The type over which the ordering is defined.

    ord

      An ordering to be used for comparing elements.

    returns

      the smallest element of this collection with respect to the ordering `ord`.

    Definition Classes
      IterableOnceOps
    Exceptions thrown

      `UnsupportedOperationException` if this collection is empty.

71.  def minBy[B](f: (A) => B)(implicit cmp: math.Ordering[B]): A

    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.

    B

      The result type of the function f.

    f

      The measuring function.

    cmp

      An ordering to be used for comparing elements.

    returns

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

    Definition Classes
      IterableOnceOps
    Exceptions thrown

      `UnsupportedOperationException` if this collection is empty.

72.  def minByOption[B](f: (A) => B)(implicit cmp: math.Ordering[B]): Option[A]

    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.

    B

      The result type of the function f.

    f

      The measuring function.

    cmp

      An ordering to be used for comparing elements.

    returns

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

    Definition Classes
      IterableOnceOps
73.  def minOption[B >: A](implicit ord: math.Ordering[B]): Option[A]

    Finds the smallest element.

    Finds the smallest element.

    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 collection with respect to the ordering `ord`.

    Definition Classes
      IterableOnceOps
74.  final def mkString: String

    Displays all elements of this collection in a string.

    Displays all elements of this collection in a string.

    Delegates to addString, which can be overridden.

    returns

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

    Definition Classes
      IterableOnceOps
    Annotations
      @inline()
75.  final def mkString(sep: String): String

    Displays all elements of this collection in a string using a separator string.

    Displays all elements of this collection in a string using a separator string.

    Delegates to addString, which can be overridden.

    sep

      the separator string.

    returns

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

    Definition Classes
      IterableOnceOps
    Annotations
      @inline()
    Example:

    1. `List(1, 2, 3).mkString("|") = "1|2|3"`

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

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

    Displays all elements of this collection 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 collection. 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 collection are separated by the string `sep`.

    Definition Classes
      IterableOnceOps
    Example:

    1. `List(1, 2, 3).mkString("(", "; ", ")") = "(1; 2; 3)"`

77.  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
78.  def newSpecificBuilder: Builder[A, View[A]]

    returns

      a strict builder for the same collection type. Note that in the case of lazy collections (e.g. View or 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
      IterableFactoryDefaults → IterableOps
    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 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.

79.  def nonEmpty: Boolean

    Tests whether the collection is not empty.

    Tests whether the collection is not empty.

    returns

      `true` if the collection contains at least one element, `false` otherwise.

    Definition Classes
      IterableOnceOps
    Annotations
      @deprecatedOverriding("nonEmpty is defined as !isEmpty; override isEmpty instead", "2.13.0")
80.  val normN: Int
    Attributes
      protected
81.  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

82.  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

83.  def partition(p: (A) => Boolean): (View[A], View[A])

    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
84.  def partitionMap[A1, A2](f: (A) => Either[A1, A2]): (View[A1], View[A2])

    Applies a function `f` to each element of the iterable collection and returns a pair of iterable collections: 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 iterable collection and returns a pair of iterable collections: 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 = Iterable(1, "one", 2, "two", 3, "three") partitionMap {
         case i: Int => Left(i)
         case s: String => Right(s)
        }
        // xs == (Iterable(1, 2, 3),
        //        Iterable(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 iterable collection to an scala.util.Either

    returns

      a pair of iterable collections: 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
85.  def product[B >: A](implicit num: math.Numeric[B]): B

    Multiplies up the elements of this collection.

    Multiplies up the elements of this collection.

    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 collection with respect to the `*` operator in `num`.

    Definition Classes
      IterableOnceOps
86.  def reduce[B >: A](op: (B, B) => B): B

    Reduces the elements of this collection using the specified associative binary operator.

    Reduces the elements of this collection 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 collection is nonempty.

    Definition Classes
      IterableOnceOps
    Exceptions thrown

      `UnsupportedOperationException` if this collection is empty.

87.  def reduceLeft[B >: A](op: (B, A) => B): B

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

    Applies a binary operator to all elements of this collection, 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 collection, going left to right:

          op( op( ... op(x_1, x_2) ..., x_{n-1}), x_n)

      where `x1, ..., xn` are the elements of this collection.

    Definition Classes
      IterableOnceOps
    Exceptions thrown

      `UnsupportedOperationException` if this collection is empty.

88.  def reduceLeftOption[B >: A](op: (B, A) => B): Option[B]

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

    Optionally applies a binary operator to all elements of this collection, 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 collection is nonempty, `None` otherwise.

    Definition Classes
      IterableOnceOps
89.  def reduceOption[B >: A](op: (B, B) => B): Option[B]

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

    Reduces the elements of this collection, 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
90.  def reduceRight[B >: A](op: (A, B) => B): B

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

    Applies a binary operator to all elements of this collection, 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 collection, going right to left:

          op(x_1, op(x_2, ..., op(x_{n-1}, x_n)...))

      where `x1, ..., xn` are the elements of this collection.

    Definition Classes
      IterableOnceOps
    Exceptions thrown

      `UnsupportedOperationException` if this collection is empty.

91.  def reduceRightOption[B >: A](op: (A, B) => B): Option[B]

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

    Optionally applies a binary operator to all elements of this collection, 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 collection is nonempty, `None` otherwise.

    Definition Classes
      IterableOnceOps
92.  def reversed: Iterable[A]
    Attributes
      protected
    Definition Classes
      IterableOnceOps
93.  def scan[B >: A](z: B)(op: (B, B) => B): View[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 iterable collection containing the prefix scan of the elements in this iterable collection

    Definition Classes
      IterableOps
94.  def scanLeft[B](z: B)(op: (B, A) => B): View[B]

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

    Produces a iterable collection 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
      IterableOps → IterableOnceOps
    Note

      Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

95.  def scanRight[B](z: B)(op: (A, B) => B): View[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
96.  def size: Int

    The size of this collection.

    The size of this collection.

    Note: will not terminate for infinite-sized collections.

    returns

      the number of elements in this collection.

    Definition Classes
      IterableOnceOps
97.  def sizeCompare(that: Iterable[_]): Int

    Compares the size of this iterable collection to the size of another `Iterable`.

    Compares the size of this iterable collection to the size of another `Iterable`.

    that

      the `Iterable` whose size is compared with this iterable collection'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
98.  def sizeCompare(otherSize: Int): Int

    Compares the size of this iterable collection to a test value.

    Compares the size of this iterable collection 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
    See also

      sizeIs

99.  final def sizeIs: SizeCompareOps

    Returns a value class containing operations for comparing the size of this iterable collection to a test value.

    Returns a value class containing operations for comparing the size of this iterable collection 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
      @inline()
100.  def slice(from: Int, until: Int): View[A]

     Selects an interval of elements.

     Selects an interval of elements. The returned iterable collection 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 iterable collection.

     until

       the lowest index to EXCLUDE from this iterable collection.

     returns

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

     Definition Classes
       IterableOps → IterableOnceOps
     Note

       Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

101.  def sliding(size: Int, step: Int): Iterator[View[A]]

     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.)

     size

       the number of elements per group

     step

       the distance between the first elements of successive groups

     returns

       An iterator producing iterable collections of size `size`, except the last element (which may be the only element) will be truncated if there are fewer than `size` elements remaining to be grouped.

     Definition Classes
       IterableOps
     See also

       scala.collection.Iterator, method `sliding`

102.  def sliding(size: Int): Iterator[View[A]]

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

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

     size

       the number of elements per group

     returns

       An iterator producing iterable collections of size `size`, except the last element (which may be the only element) will be truncated if there are fewer than `size` elements remaining to be grouped.

     Definition Classes
       IterableOps
     See also

       scala.collection.Iterator, method `sliding`

103.  def span(p: (A) => Boolean): (View[A], View[A])

     Splits this iterable collection into a prefix/suffix pair according to a predicate.

     Splits this iterable collection 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 iterable collection whose elements all satisfy `p`, and the rest of this iterable collection.

     Definition Classes
       IterableOps → IterableOnceOps
     Note

       Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterators that were returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterators as well.

104.  def splitAt(n: Int): (View[A], View[A])

     Splits this iterable collection into a prefix/suffix pair at a given position.

     Splits this iterable collection 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 iterable collections consisting of the first `n` elements of this iterable collection, and the other elements.

     Definition Classes
       IterableOps → IterableOnceOps
     Note

       Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterators that were returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterators as well.

105.  def stepper[S <: Stepper[_]](implicit shape: StepperShape[A, S]): S

     Returns a Stepper for the elements of this collection.

     Returns a 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 StepperShape parameter defines the resulting Stepper type according to the element type of this collection.

     - For collections of `Int`, `Short`, `Byte` or `Char`, an IntStepper is returned
     - For collections of `Double` or `Float`, a DoubleStepper is returned
     - For collections of `Long` a LongStepper is returned
     - For any other element type, an AnyStepper is returned

     Note that this method is overridden in subclasses and the return type is refined to `S with EfficientSplit`, for example 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
106.  def stringPrefix: String
     Attributes
       protected[this]
     Definition Classes
       View → Iterable
     Annotations
       @deprecatedOverriding("Compatibility override", "2.13.0")
107.  def sum[B >: A](implicit num: math.Numeric[B]): B

     Sums up the elements of this collection.

     Sums up the elements of this collection.

     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 collection with respect to the `+` operator in `num`.

     Definition Classes
       IterableOnceOps
108.  final def synchronized[T0](arg0: => T0): T0
     Definition Classes
       AnyRef
109.  def tail: View[A]

     The rest of the collection without its first element.

     The rest of the collection without its first element.

     Definition Classes
       IterableOps
110.  def tails: Iterator[View[A]]

     Iterates over the tails of this iterable collection.

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

     returns

       an iterator over all the tails of this iterable collection

     Definition Classes
       IterableOps
     Example:

     1. `List(1,2,3).tails = Iterator(List(1,2,3), List(2,3), List(3), Nil)`

111.  def take(n: Int): View[A]

     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 iterable collection.

     returns

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

     Definition Classes
       IterableOps → IterableOnceOps
     Note

       Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

112.  def takeRight(n: Int): View[A]

     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 iterable collection.

     returns

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

     Definition Classes
       IterableOps
113.  def takeWhile(p: (A) => Boolean): View[A]

     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 iterable collection whose elements all satisfy the predicate `p`.

     Definition Classes
       IterableOps → IterableOnceOps
114.  def tapEach[U](f: (A) => U): View[A]

     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 iterable collection

     returns

       The same logical collection as this

     Definition Classes
       IterableOps → IterableOnceOps
115.  def to[C1](factory: Factory[A, 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
116.  def toArray[B >: A](implicit arg0: ClassTag[B]): Array[B]

     Convert collection to array.

     Convert collection to array.

     Definition Classes
       IterableOnceOps
117.  final def toBuffer[B >: A]: Buffer[B]
     Definition Classes
       IterableOnceOps
     Annotations
       @inline()
118.  def toIndexedSeq: immutable.IndexedSeq[A]
     Definition Classes
       IterableOnceOps
119.  final def toIterable: TakeRight.this.type

     returns

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

     Definition Classes
       Iterable → IterableOps
120.  def toList: immutable.List[A]
     Definition Classes
       IterableOnceOps
121.  def toMap[K, V](implicit ev: <:<[A, (K, V)]): immutable.Map[K, V]
     Definition Classes
       IterableOnceOps
122.  def toSeq: immutable.Seq[A]

     returns

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

     Definition Classes
       IterableOnceOps
123.  def toSet[B >: A]: immutable.Set[B]
     Definition Classes
       IterableOnceOps
124.  def toString(): String

     Converts this view to a string.

     Converts this view to a string.

     returns

       a string representation of this collection. By default this string consists of the `className` of this view, followed by all elements separated by commas and enclosed in parentheses.

     Definition Classes
       View → Iterable → AnyRef → Any
125.  def toVector: immutable.Vector[A]
     Definition Classes
       IterableOnceOps
126.  def transpose[B](implicit asIterable: (A) => Iterable[B]): View[View[B]]

     Transposes this iterable collection of iterable collections into a iterable collection of iterable collections.

     Transposes this iterable collection of iterable collections into a iterable collection of iterable collections.

     The resulting collection's type will be guided by the static type of iterable collection. 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 iterable collection is an `Iterable`.

     returns

       a two-dimensional iterable collection of iterable collections which has as nth row the nth column of this iterable collection.

     Definition Classes
       IterableOps
     Exceptions thrown

       `IllegalArgumentException` if all collections in this iterable collection are not of the same size.

127.  def unzip[A1, A2](implicit asPair: (A) => (A1, A2)): (View[A1], View[A2])

     Converts this iterable collection of pairs into two collections of the first and second half of each pair.

     Converts this iterable collection of pairs into two collections of the first and second half of each pair.

         val xs = Iterable(
                    (1, "one"),
                    (2, "two"),
                    (3, "three")).unzip
         // xs == (Iterable(1, 2, 3),
         //        Iterable(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 iterable collection is a pair.

     returns

       a pair of iterable collections, containing the first, respectively second half of each element pair of this iterable collection.

     Definition Classes
       IterableOps
128.  def unzip3[A1, A2, A3](implicit asTriple: (A) => (A1, A2, A3)): (View[A1], View[A2], View[A3])

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

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

         val xs = Iterable(
                    (1, "one", '1'),
                    (2, "two", '2'),
                    (3, "three", '3')).unzip3
         // xs == (Iterable(1, 2, 3),
         //        Iterable(one, two, three),
         //        Iterable(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 iterable collection is a triple.

     returns

       a triple of iterable collections, containing the first, second, respectively third member of each element triple of this iterable collection.

     Definition Classes
       IterableOps
129.  def view: View[A]

     A view over the elements of this collection.

     A view over the elements of this collection.

     Definition Classes
       View → IterableOps
130.  final def wait(): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws(classOf[java.lang.InterruptedException])
131.  final def wait(arg0: Long, arg1: Int): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws(classOf[java.lang.InterruptedException])
132.  final def wait(arg0: Long): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws(classOf[java.lang.InterruptedException]) @native()
133.  def withFilter(p: (A) => Boolean): WithFilter[A, [_]View[_]]

     Creates a non-strict filter of this iterable collection.

     Creates a non-strict filter of this iterable collection.

     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 iterable collection which satisfy the predicate `p`.

     Definition Classes
       IterableOps
134.  def zip[B](that: IterableOnce[B]): View[(A, B)]

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

     Returns a iterable collection formed from this iterable collection 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 iterable collection containing pairs consisting of corresponding elements of this iterable collection and `that`. The length of the returned collection is the minimum of the lengths of this iterable collection and `that`.

     Definition Classes
       IterableOps
135.  def zipAll[A1 >: A, B](that: Iterable[B], thisElem: A1, thatElem: B): View[(A1, B)]

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

     Returns a iterable collection formed from this iterable collection 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 iterable collection is shorter than `that`.

     thatElem

       the element to be used to fill up the result if `that` is shorter than this iterable collection.

     returns

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

     Definition Classes
       IterableOps
136.  def zipWithIndex: View[(A, Int)]

     Zips this iterable collection with its indices.

     Zips this iterable collection with its indices.

     returns

       A new iterable collection containing pairs consisting of all elements of this iterable collection paired with their index. Indices start at `0`.

     Definition Classes
       IterableOps → IterableOnceOps
     Example:

     1. `List("a", "b", "c").zipWithIndex == List(("a", 0), ("b", 1), ("c", 2))`

     Note

       Reuse: After calling this method, one should discard the iterator it was called on, and use only the iterator that was returned. Using the old iterator is undefined, subject to change, and may result in changes to the new iterator as well.

### Deprecated Value Members

1.  def ++:[B >: A](that: IterableOnce[B]): View[B]
   Definition Classes
     IterableOps
   Annotations
     @deprecated
   Deprecated

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

2.  def /:[B](z: B)(op: (B, A) => B): B
   Implicit
     This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (takeRight: IterableOnceExtensionMethods[A])./:(z)(op)

   Definition Classes
     IterableOnceExtensionMethods
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.13.0) Use .iterator.foldLeft instead

3.  final def /:[B](z: B)(op: (B, A) => B): B
   Definition Classes
     IterableOnceOps
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.13.0) Use foldLeft instead of /:

4.  def :\[B](z: B)(op: (A, B) => B): B
   Implicit
     This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (takeRight: IterableOnceExtensionMethods[A]).:\(z)(op)

   Definition Classes
     IterableOnceExtensionMethods
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.13.0) Use .iterator.foldRight instead

5.  final def :\[B](z: B)(op: (A, B) => B): B
   Definition Classes
     IterableOnceOps
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.13.0) Use foldRight instead of :\

6.  def aggregate[B](z: => B)(seqop: (B, A) => B, combop: (B, B) => B): B
   Definition Classes
     IterableOnceOps
   Annotations
     @deprecated
   Deprecated

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

7.  def collectFirst[B](f: PartialFunction[A, B]): Option[B]
   Implicit
     This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (takeRight: IterableOnceExtensionMethods[A]).collectFirst(f)

   Definition Classes
     IterableOnceExtensionMethods
   Annotations
     @deprecated
   Deprecated

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

8.  def companion: IterableFactory[[_]View[_]]
   Definition Classes
     IterableOps
   Annotations
     @deprecated @deprecatedOverriding("Use iterableFactory instead", "2.13.0") @inline()
   Deprecated

     (Since version 2.13.0) Use iterableFactory instead

9.  def copyToBuffer(dest: Buffer[A]): Unit
   Implicit
     This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (takeRight: IterableOnceExtensionMethods[A]).copyToBuffer(dest)

   Definition Classes
     IterableOnceExtensionMethods
   Annotations
     @deprecated
   Deprecated

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

10.  final def copyToBuffer[B >: A](dest: Buffer[B]): Unit
    Definition Classes
      IterableOnceOps
    Annotations
      @deprecated @inline()
    Deprecated

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

11.  def count(f: (A) => Boolean): Int
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Shadowing
      This implicitly inherited member is shadowed by one or more members in this class.
      To access this member you can use a type ascription:

          (takeRight: IterableOnceExtensionMethods[A]).count(f)

    Definition Classes
      IterableOnceExtensionMethods
    Annotations
      @deprecated
    Deprecated

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

12.  def exists(f: (A) => Boolean): Boolean
    Implicit
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    Definition Classes
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      (Since version 2.13.0) Use .iterator.exists(...) instead

13.  def filter(f: (A) => Boolean): Iterator[A]
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14.  def find(p: (A) => Boolean): Option[A]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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    Definition Classes
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      (Since version 2.13.0) Use .iterator.find instead

15.  def flatMap[B](f: (A) => IterableOnce[B]): IterableOnce[B]
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      (Since version 2.13.0) Use .iterator.flatMap instead or consider requiring an Iterable

16.  def fold[A1 >: A](z: A1)(op: (A1, A1) => A1): A1
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          (takeRight: IterableOnceExtensionMethods[A]).fold(z)(op)

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      (Since version 2.13.0) Use .iterator.fold instead

17.  def foldLeft[B](z: B)(op: (B, A) => B): B
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      (Since version 2.13.0) Use .iterator.foldLeft instead

18.  def foldRight[B](z: B)(op: (A, B) => B): B
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      (Since version 2.13.0) Use .iterator.foldRight instead

19.  def forall(f: (A) => Boolean): Boolean
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20.  def force: IndexedSeq[A]
    Definition Classes
      View
    Annotations
      @deprecated @inline()
    Deprecated

      (Since version 2.13.0) Views no longer know about their underlying collection type; .force always returns an IndexedSeq

21.  def foreach[U](f: (A) => U): Unit
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22.  def hasDefiniteSize: Boolean

    Tests whether this collection is known to have a finite size.

    Tests whether this collection 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
    Deprecated

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

    See also

      method `knownSize` for a more useful alternative

23.  def isEmpty: Boolean
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24.  def map[B](f: (A) => B): IterableOnce[B]
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      (Since version 2.13.0) Use .iterator.map instead or consider requiring an Iterable

25.  def max(implicit ord: math.Ordering[A]): A
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      (Since version 2.13.0) Use .iterator.max instead

26.  def maxBy[B](f: (A) => B)(implicit cmp: math.Ordering[B]): A
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      (Since version 2.13.0) Use .iterator.maxBy(...) instead

27.  def min(implicit ord: math.Ordering[A]): A
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      (Since version 2.13.0) Use .iterator.min instead

28.  def minBy[B](f: (A) => B)(implicit cmp: math.Ordering[B]): A
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29.  def mkString: String
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30.  def mkString(sep: String): String
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31.  def mkString(start: String, sep: String, end: String): String
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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32.  def nonEmpty: Boolean
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.nonEmpty instead

33.  def product(implicit num: math.Numeric[A]): A
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.product instead

34.  def reduce(f: (A, A) => A): A
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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35.  def reduceLeft(f: (A, A) => A): A
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      (Since version 2.13.0) Use .iterator.reduceLeft(...) instead

36.  def reduceLeftOption(f: (A, A) => A): Option[A]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.reduceLeftOption(...) instead

37.  def reduceOption(f: (A, A) => A): Option[A]
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38.  def reduceRight(f: (A, A) => A): A
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      (Since version 2.13.0) Use .iterator.reduceRight(...) instead

39.  def reduceRightOption(f: (A, A) => A): Option[A]
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      (Since version 2.13.0) Use .iterator.reduceRightOption(...) instead

40.  final def repr: View[A]
    Definition Classes
      IterableOps
    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) Use coll instead of repr in a collection implementation, use the collection value itself from the outside

41.  def sameElements[B >: A](that: IterableOnce[B]): Boolean
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
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      @deprecated
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      (Since version 2.13.0) Use .iterator.sameElements instead

42.  def seq: TakeRight.this.type
    Definition Classes
      Iterable
    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) Iterable.seq always returns the iterable itself

43.  def size: Int
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.size instead

44.  def sum(implicit num: math.Numeric[A]): A
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.sum instead

45.  def to[C1](factory: Factory[A, C1]): C1
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      (Since version 2.13.0) Use .iterator.to(factory) instead

46.  def toArray[B >: A](implicit arg0: ClassTag[B]): Array[B]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.toArray

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

48.  def toIndexedSeq: IndexedSeq[A]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.toIndexedSeq instead

49.  final def toIterable: Iterable[A]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.to(Iterable) instead

50.  def toIterator: Iterator[A]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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51.  final def toIterator: Iterator[A]
    Definition Classes
      IterableOnceOps
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      @deprecated @inline()
    Deprecated

      (Since version 2.13.0) Use .iterator instead of .toIterator

52.  def toList: immutable.List[A]
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53.  def toMap[K, V](implicit ev: <:<[A, (K, V)]): immutable.Map[K, V]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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          (takeRight: IterableOnceExtensionMethods[A]).toMap(ev)

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      (Since version 2.13.0) Use .iterator.to(Map) instead

54.  def toSeq: immutable.Seq[A]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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55.  def toSet[B >: A]: immutable.Set[B]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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56.  def toStream: immutable.Stream[A]
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      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      (Since version 2.13.0) Use .iterator.to(LazyList) instead

57.  final def toStream: immutable.Stream[A]
    Definition Classes
      IterableOnceOps
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      @deprecated @inline()
    Deprecated

      (Since version 2.13.0) Use .to(LazyList) instead of .toStream

58.  final def toTraversable: Traversable[A]
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59.  final def toTraversable: Traversable[A]

    Converts this iterable collection to an unspecified Iterable.

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

    returns

      An Iterable containing all elements of this iterable collection.

    Definition Classes
      IterableOps
    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) Use toIterable instead

60.  def toVector: immutable.Vector[A]
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
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      This implicitly inherited member is shadowed by one or more members in this class.
      To access this member you can use a type ascription:

          (takeRight: IterableOnceExtensionMethods[A]).toVector

    Definition Classes
      IterableOnceExtensionMethods
    Annotations
      @deprecated @inline()
    Deprecated

      (Since version 2.13.0) Use .iterator.to(Vector) instead

61.  def view(from: Int, until: Int): View[A]

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

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

    Definition Classes
      IterableOps
    Annotations
      @deprecated
    Deprecated

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

62.  def withFilter(f: (A) => Boolean): Iterator[A]
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Shadowing
      This implicitly inherited member is shadowed by one or more members in this class.
      To access this member you can use a type ascription:

          (takeRight: IterableOnceExtensionMethods[A]).withFilter(f)

    Definition Classes
      IterableOnceExtensionMethods
    Annotations
      @deprecated
    Deprecated

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

63.  def →[B](y: B): (TakeRight[A], B)
    Implicit
      This member is added by an implicit conversion from TakeRight[A] toArrowAssoc[TakeRight[A]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc
    Annotations
      @deprecated
    Deprecated

      (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.

### Inherited from AbstractView[A]

### Inherited from View[A]

### Inherited from java.io.Serializable

### Inherited from AbstractIterable[A]

### Inherited from Iterable[A]

### Inherited from IterableFactoryDefaults[A, [x]View[x]]

### Inherited from IterableOps[A, [_]View[_], View[A]]

### Inherited from IterableOnceOps[A, [_]View[_], View[A]]

### Inherited from IterableOnce[A]

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion iterableOnceExtensionMethods fromTakeRight[A] to IterableOnceExtensionMethods[A]

### Inherited by implicit conversion any2stringadd fromTakeRight[A] to any2stringadd[TakeRight[A]]

### Inherited by implicit conversion StringFormat fromTakeRight[A] to StringFormat[TakeRight[A]]

### Inherited by implicit conversion Ensuring fromTakeRight[A] to Ensuring[TakeRight[A]]

### Inherited by implicit conversion ArrowAssoc fromTakeRight[A] to ArrowAssoc[TakeRight[A]]

### Ungrouped