Packages

trait IterableOnce[+A] extends Any

A template trait for collections which can be traversed either once only or one or more times.

Source
IterableOnce.scala
Linear Supertypes
Known Subclasses
ValueSet, AbstractIndexedSeqView, AbstractIterable, AbstractIterator, AbstractMap, AbstractMapView, AbstractSeq, AbstractSeqView, AbstractSet, AbstractView, BitSet, BitSetOps, BufferedIterator, IndexedSeq, IndexedSeqOps, IndexedSeqView, Drop, DropRight, Id, Map, Prepended, Reverse, Slice, Take, TakeRight, Iterable, IterableOps, Iterator, GroupedIterator, LinearSeq, LinearSeqOps, Map, MapOps, KeySet, MapView, FilterKeys, Id, MapValues, Seq, SeqOps, SeqView, Id, Map, Prepended, Take, Set, SetOps, SortedMap, SortedMapOps, KeySortedSet, SortedSet, SortedSetOps, StrictOptimizedIterableOps, StrictOptimizedSeqOps, StrictOptimizedSortedSetOps, StringView, View, Appended, Concat, DistinctBy, Drop, DropWhile, Elems, Empty, Fill, Filter, FlatMap, Iterate, Map, PadTo, Partitioned, Prepended, ScanLeft, Single, Tabulate, Take, TakeWhile, Updated, Zip, ZipAll, ZipWithIndex, Map, TrieMap, ::, AbstractMap, AbstractSeq, AbstractSet, ArraySeq, ofBoolean, ofByte, ofChar, ofDouble, ofFloat, ofInt, ofLong, ofRef, ofShort, ofUnit, BitSet, BitSet1, BitSet2, BitSetN, ChampHashMap, ChampHashSet, HashMap, HashMap1, HashTrieMap, HashSet, IndexedSeq, IndexedSeqOps, IntMap, Iterable, LazyList, Cons, Empty, LinearSeq, LinearSeqOps, List, ListMap, Node, ListSet, Node, LongMap, Map, Map1, Map2, Map3, Map4, WithDefault, MapOps, ImmutableKeySet, Nil, NumericRange, Exclusive, Inclusive, Queue, Range, Exclusive, Inclusive, Seq, SeqOps, Set, Set1, Set2, Set3, Set4, SetOps, SortedMap, WithDefault, SortedMapOps, ImmutableKeySortedSet, SortedSet, SortedSetOps, Cons, Empty, StrictOptimizedSeqOps, TreeMap, TreeSet, Vector, VectorIterator, WrappedString, AbstractBuffer, AbstractIterable, AbstractMap, AbstractSeq, AbstractSet, AnyRefMap, ArrayBuffer, ArrayBufferView, ArrayDeque, ArraySeq, ofBoolean, ofByte, ofChar, ofDouble, ofFloat, ofInt, ofLong, ofRef, ofShort, ofUnit, BitSet, Buffer, HashMap, HashSet, IndexedOptimizedBuffer, IndexedOptimizedSeq, IndexedSeq, IndexedSeqOps, Iterable, IterableOps, LinkedHashMap, LinkedKeySet, LinkedHashSet, ListBuffer, ListMap, LongMap, Map, WithDefault, MapOps, MultiMap, PriorityQueue, Queue, Seq, SeqOps, Set, SetOps, SortedMap, WithDefault, SortedMapOps, SortedSet, SortedSetOps, Stack, StringBuilder, TreeMap, TreeSet, UnrolledBuffer, BufferedSource, BufferedLineIterator, Source, LineIterator, SystemProperties, MatchIterator, DefaultMap, Stream, OpenHashMap
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Inherited
  1. IterableOnce
  2. Any
Implicitly
  1. by iterableOnceExtensionMethods
  2. by any2stringadd
  3. by StringFormat
  4. by Ensuring
  5. by ArrowAssoc
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Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def getClass(): Class[_]

    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
    Any
  2. abstract def iterator: Iterator[A]

    Iterator can be used only once

  3. abstract def knownSize: Int

    returns

    The number of elements of this collection if it can be computed in O(1) time, otherwise -1

Concrete 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
    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
    Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toany2stringadd[IterableOnce[A]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (IterableOnce[A], B)
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toArrowAssoc[IterableOnce[A]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean

    Test two objects for equality.

    Test two objects for equality. 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
    Any
  6. 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.

  7. def ensuring(cond: (IterableOnce[A]) ⇒ Boolean, msg: ⇒ Any): IterableOnce[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toEnsuring[IterableOnce[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  8. def ensuring(cond: (IterableOnce[A]) ⇒ Boolean): IterableOnce[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toEnsuring[IterableOnce[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: Boolean, msg: ⇒ Any): IterableOnce[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toEnsuring[IterableOnce[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean): IterableOnce[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toEnsuring[IterableOnce[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def equals(arg0: Any): Boolean

    Compares the receiver object (this) with the argument object (that) for equivalence.

    Compares the receiver object (this) with the argument object (that) for equivalence.

    Any implementation of this method should be an equivalence relation:

    • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
    • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
    • It is transitive: for any instances x, y, and z of type Any if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is usually necessary to override hashCode to ensure that objects which are "equal" (o1.equals(o2) returns true) hash to the same scala.Int. (o1.hashCode.equals(o2.hashCode)).

    returns

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

    Definition Classes
    Any
  12. 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 IterableOnce[A] toStringFormat[IterableOnce[A]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  13. def hashCode(): Int

    Calculate a hash code value for the object.

    Calculate a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    returns

    the hash code value for this object.

    Definition Classes
    Any
  14. 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
  15. def toString(): String

    Returns a string representation of the object.

    Returns a string representation of the object.

    The default representation is platform dependent.

    returns

    a string representation of the object.

    Definition Classes
    Any
  16. def [B](y: B): (IterableOnce[A], B)
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toArrowAssoc[IterableOnce[A]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def /:[B](z: B)(op: (B, A) ⇒ B): B
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use .iterator.foldLeft instead of /: on IterableOnce

  2. def :\[B](z: B)(op: (A, B) ⇒ B): B
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use .iterator.foldRight instead of :\ on IterableOnce

  3. def find(p: (A) ⇒ Boolean): Option[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use .iterator.find instead of .find on IterableOnce

  4. def flatMap[B](f: (A) ⇒ IterableOnce[B]): IterableOnce[B]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

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

  5. def fold[A1 >: A](z: A1)(op: (A1, A1) ⇒ A1): A1
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use .iterator.fold instead of .fold on IterableOnce

  6. def foldLeft[B](z: B)(op: (B, A) ⇒ B): B
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use .iterator.foldLeft instead of .foldLeft on IterableOnce

  7. def foldRight[B](z: B)(op: (A, B) ⇒ B): B
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use .iterator.foldRight instead of .foldLeft on IterableOnce

  8. def foreach[U](f: (A) ⇒ U): Unit
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use .iterator.foreach(...) instead of .foreach(...) on IterableOnce

  9. def isEmpty: Boolean
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use .iterator.isEmpty instead of .isEmpty on IterableOnce

  10. def map[B](f: (A) ⇒ B): IterableOnce[B]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use .iterator.map instead of .map on IterableOnce or consider requiring an Iterable

  11. def mkString: String
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use .iterator.mkString instead of .mkString on IterableOnce

  12. def mkString(sep: String): String
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use .iterator.mkString instead of .mkString on IterableOnce

  13. def mkString(start: String, sep: String, end: String): String
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use .iterator.mkString instead of .mkString on IterableOnce

  14. def sameElements[B >: A](that: IterableOnce[B]): Boolean
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use .iterator.sameElements for sameElements on Iterable or IterableOnce

  15. def to[C1](factory: Factory[A, C1]): C1
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use factory.from(it) instead of it.to(factory) for IterableOnce

  16. def toArray[B >: A](implicit arg0: ClassTag[B]): Array[B]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use ArrayBuffer.from(it).toArray

  17. def toBuffer[B >: A]: Buffer[B]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use ArrayBuffer.from(it) instead of it.toBuffer

  18. final def toIterable: Iterable[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use Iterable.from(it) instead of it.toIterable

  19. def toIterator: Iterator[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) toIterator has been renamed to iterator

  20. def toList: immutable.List[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use List.from(it) instead of it.toList

  21. def toMap[K, V](implicit ev: <:<[A, (K, V)]): immutable.Map[K, V]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use Map.from(it) instead of it.toVector on IterableOnce

  22. def toSeq: immutable.Seq[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use Seq.from(it) instead of it.toSeq

  23. def toSet[B >: A]: immutable.Set[B]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use Set.from(it) instead of it.toSet

  24. def toStream: immutable.Stream[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use Stream.from(it) instead of it.toStream

  25. def toVector: immutable.Vector[A]
    Implicit
    This member is added by an implicit conversion from IterableOnce[A] toIterableOnceExtensionMethods[A] performed by method iterableOnceExtensionMethods in scala.collection.IterableOnce.
    Definition Classes
    IterableOnceExtensionMethods
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.13.0) Use Vector.from(it) instead of it.toVector on IterableOnce

Inherited from Any

Inherited by implicit conversion iterableOnceExtensionMethods fromIterableOnce[A] to IterableOnceExtensionMethods[A]

Inherited by implicit conversion any2stringadd fromIterableOnce[A] to any2stringadd[IterableOnce[A]]

Inherited by implicit conversion StringFormat fromIterableOnce[A] to StringFormat[IterableOnce[A]]

Inherited by implicit conversion Ensuring fromIterableOnce[A] to Ensuring[IterableOnce[A]]

Inherited by implicit conversion ArrowAssoc fromIterableOnce[A] to ArrowAssoc[IterableOnce[A]]

Ungrouped