Scaladoc for scala.collection.IterableViewLike

Inherited

Hide All
Show all

TraversableView
TraversableViewLike
Iterable
IterableLike
Equals
Traversable
GenericTraversableTemplate
TraversableLike
TraversableOnce
HasNewBuilder
AnyRef
Any

Visibility

Public
All

Type Members

trait Appended[B >: A] extends Transformed[B] with Appended[B]

definition classes: IterableViewLike → TraversableViewLike
trait DroppedWhile extends Transformed[A] with DroppedWhile

definition classes: IterableViewLike → TraversableViewLike
trait Filtered extends Transformed[A] with Filtered

definition classes: IterableViewLike → TraversableViewLike
trait FlatMapped[B] extends Transformed[B] with FlatMapped[B]

definition classes: IterableViewLike → TraversableViewLike
trait Forced[B] extends Transformed[B] with Forced[B]

A fall back which forces everything into a vector and then applies an operation on it .
trait Mapped[B] extends Transformed[B] with Mapped[B]

definition classes: IterableViewLike → TraversableViewLike
type Self = This

The type implementing this traversable

The type implementing this traversable
attributes: protected
definition classes: TraversableLike
trait Sliced extends Transformed[A] with Sliced

pre: from >= 0
trait TakenWhile extends Transformed[A] with TakenWhile

definition classes: IterableViewLike → TraversableViewLike
trait Transformed[+B] extends IterableView[B, Coll] with Transformed[B]

The implementation base trait of this view .
class WithFilter extends AnyRef

A class supporting filtered operations .
trait Zipped[B] extends Transformed[(A, B)]
trait ZippedAll[A1 >: A, B] extends Transformed[(A1, B)]

Value Members

def !=(arg0: AnyRef): Boolean

attributes: final
definition classes: AnyRef
def !=(arg0: Any): Boolean

o != arg0 is the same as !(o == (arg0)).

o != arg0 is the same as !(o == (arg0)).
arg0
the object to compare against this object for dis-equality .
returns
false if the receiver object is equivalent to the argument; true otherwise.
attributes: final
definition classes: Any
def ##(): Int

attributes: final
definition classes: AnyRef → Any
def $asInstanceOf[T0](): T0

attributes: final
definition classes: AnyRef
def $isInstanceOf[T0](): Boolean

attributes: final
definition classes: AnyRef
def ++(that: TraversableOnce[A]): Iterable[A]

[use case] Concatenates this iterable collection with the elements of a traversable collection .

[use case]
Concatenates this iterable collection with the elements of a traversable collection .
that
the traversable to append .
returns
a new iterable collection which contains all elements of this iterable collection followed by all elements of that.
attributes: abstract
def ++[B >: A, That](xs: TraversableOnce[B])(implicit bf: CanBuildFrom[This, B, That]): That

Concatenates this iterable collection with the elements of a traversable collection .

Concatenates this iterable collection with the elements of a traversable collection .
B
the element type of the returned collection .
That
the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.
bf
an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.
returns
a new collection of type That which contains all elements of this iterable collection followed by all elements of that.
definition classes: TraversableViewLike → TraversableLike
def /:[B](z: B)(op: (B, A) ⇒ B): B

Applies a binary operator to a start value and all elements of this iterable collection, going left to right .
Applies a binary operator to a start value and all elements of this iterable collection, going left to right .
Note: /: is alternate syntax for foldLeft; z /: xs is the same as xs foldLeft z.
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 iterable collection, going left to right with the start value z on the left: op(...op(op(z, x₁), x₂), ..., x_n) where x,,1,,, ..., x,,n,, are the elements of this iterable collection.
definition classes: TraversableOnce
def :\[B](z: B)(op: (A, B) ⇒ B): B

Applies a binary operator to all elements of this iterable collection and a start value, going right to left .
Applies a binary operator to all elements of this iterable collection and a start value, going right to left .
Note: :\ is alternate syntax for foldRight; xs :\ z is the same as xs foldRight z.
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 iterable collection, going right to left with the start value z on the right: op(x₁, op(x₂, ... op(x_n, z)...)) where x,,1,,, ..., x,,n,, are the elements of this iterable collection.
definition classes: TraversableOnce
def ==(arg0: AnyRef): Boolean

o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).

o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).
arg0
the object to compare against this object for equality .
returns
true if the receiver object is equivalent to the argument; false otherwise.
attributes: final
definition classes: AnyRef
def ==(arg0: Any): Boolean

o == arg0 is the same as o.equals(arg0).

o == arg0 is the same as o.equals(arg0).
arg0
the object to compare against this object for equality .
returns
true if the receiver object is equivalent to the argument; false otherwise.
attributes: final
definition classes: Any
def addString(b: StringBuilder): StringBuilder

Appends all elements of this iterable collection to a string builder .

Appends all elements of this iterable collection to a string builder. The written text consists of the string representations (w.r.t. the method toString) of all elements of this iterable collection without any separator string.
b
the string builder to which elements are appended .
returns
the string builder b to which elements were appended.
definition classes: TraversableOnce
def addString(b: StringBuilder, sep: String): StringBuilder

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

Appends all elements of this iterable 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 iterable collection, separated by the string sep.
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: TraversableOnce
def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

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

Appends all elements of this iterable 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 iterable collection are separated by the string sep.
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: TraversableOnce
def asInstanceOf[T0]: T0

This method is used to cast the receiver object to be of type T0.

This method is used to 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 expression1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expressionList(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 typed.
returns
the receiver object .
attributes: final
definition classes: Any
def canEqual(that: Any): Boolean

Method called from equality methods, so that user-defined subclasses can refuse to be equal to other collections of the same kind .

Method called from equality methods, so that user-defined subclasses can refuse to be equal to other collections of the same kind .
that
The object with which this iterable collection should be compared
returns
true, if this iterable collection can possibly equal that, false otherwise. The test takes into consideration only the run-time types of objects but ignores their elements.
definition classes: IterableLike → Equals
def clone(): AnyRef

This method creates and returns a copy of the receiver object .

This method creates and returns 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
definition classes: AnyRef
def collect[B](pf: PartialFunction[A, B]): Iterable[B]

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

[use case]
Builds a new 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 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.
attributes: abstract
def collect[B, That](pf: PartialFunction[A, B])(implicit bf: CanBuildFrom[This, B, That]): That

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

Builds a new 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 collection .
That
the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.
pf
the partial function which filters and maps the iterable collection .
bf
an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.
returns
a new collection of type That resulting from applying the partial function pf to each element on which it is defined and collecting the results. The order of the elements is preserved.
definition classes: TraversableViewLike → TraversableLike
def companion: GenericCompanion[Iterable[A][A]]

The factory companion object that builds instances of class Iterable .

The factory companion object that builds instances of class Iterable .
definition classes: Iterable → Traversable → GenericTraversableTemplate
def copyToArray(xs: Array[A], start: Int, len: Int): Unit

[use case] Copies elements of this iterable collection to an array .

[use case]
Copies elements of this iterable collection to an array. Fills the given array xs with at most len elements of this iterable collection, starting at position start. Copying will stop once either the end of the current iterable collection is reached, or the end of the array is reached, or len elements have been copied.
xs
the array to fill .
start
the starting index .
len
the maximal number of elements to copy .
attributes: abstract
def copyToArray[B >: A](xs: Array[B], start: Int, len: Int): Unit

Copies elements of this iterable collection to an array .

Copies elements of this iterable collection to an array. Fills the given array xs with at most len elements of this iterable collection, starting at position start. Copying will stop once either the end of the current iterable collection is reached, or the end of the array is reached, or len elements have been copied.
Note: will not terminate for infinite-sized collections.
B
the type of the elements of the array .
xs
the array to fill .
start
the starting index .
len
the maximal number of elements to copy .
definition classes: IterableLike → TraversableLike → TraversableOnce
def copyToArray(xs: Array[A]): Unit

[use case] Copies values of this iterable collection to an array .

[use case]
Copies values of this iterable collection to an array. Fills the given array xs with values of this iterable collection. Copying will stop once either the end of the current iterable collection is reached, or the end of the array is reached.
xs
the array to fill .
attributes: abstract
def copyToArray[B >: A](xs: Array[B]): Unit

Copies values of this iterable collection to an array .

Copies values of this iterable collection to an array. Fills the given array xs with values of this iterable collection. Copying will stop once either the end of the current iterable collection is reached, or the end of the array is reached.
Note: will not terminate for infinite-sized collections.
B
the type of the elements of the array .
xs
the array to fill .
definition classes: TraversableOnce
def copyToArray(xs: Array[A], start: Int): Unit

[use case] Copies values of this iterable collection to an array .

[use case]
Copies values of this iterable collection to an array. Fills the given array xs with values of this iterable collection, after skipping start values. Copying will stop once either the end of the current iterable collection is reached, or the end of the array is reached.
xs
the array to fill .
start
the starting index .
attributes: abstract
def copyToArray[B >: A](xs: Array[B], start: Int): Unit

Copies values of this iterable collection to an array .

Copies values of this iterable collection to an array. Fills the given array xs with values of this iterable collection, after skipping start values. Copying will stop once either the end of the current iterable collection is reached, or the end of the array is reached.
Note: will not terminate for infinite-sized collections.
B
the type of the elements of the array .
xs
the array to fill .
start
the starting index .
definition classes: TraversableOnce
def copyToBuffer[B >: A](dest: Buffer[B]): Unit

Copies all elements of this iterable collection to a buffer .

Copies all elements of this iterable collection to a buffer .
Note: will not terminate for infinite-sized collections.
dest
The buffer to which elements are copied .
definition classes: TraversableOnce
def count(p: (A) ⇒ Boolean): Int

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

Counts the number of elements in the iterable collection which satisfy a predicate .
p
the predicate used to test elements .
returns
the number of elements satisfying the predicate p.
definition classes: TraversableOnce
def drop(n: Int): This

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.
definition classes: TraversableViewLike → TraversableLike
def dropRight(n: Int): This

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 take
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.
definition classes: IterableLike
def dropWhile(p: (A) ⇒ Boolean): This

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: TraversableViewLike → TraversableLike
def elements: Iterator[A]
definition classes: IterableLike
1. use iterator' instead
def eq(arg0: AnyRef): Boolean

This method is used to test whether the argument (arg0) is a reference to the receiver object (this).

This method is used to test whether the argument (arg0) is a reference to the receiver object (this).
The eq method implements an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation] on non-null instances of AnyRef: * It is reflexive: for any non-null instance x of type AnyRef, x.eq(x) returns true. * It is symmetric: for any non-null instances x and y of type AnyRef, x.eq(y) returns true if and only if y.eq(x) returns true. * It is transitive: for any non-null instances x, y, and z of type AnyRef if x.eq(y) returns true and y.eq(z) returns true, then x.eq(z) returns true.
Additionally, the eq method has three other 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).
arg0
the object to compare against this object for reference equality .
returns
true if the argument is a reference to the receiver object; false otherwise.
attributes: final
definition classes: AnyRef
def equals(arg0: Any): Boolean

This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.
The default implementations of this method is an [http://en.wikipedia.org/wiki/Equivalence_relation 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 AnyRef 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 often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same scala.Int (o1.hashCode.equals(o2.hashCode)).
arg0
the object to compare against this object for equality .
returns
true if the receiver object is equivalent to the argument; false otherwise.
definition classes: AnyRef → Any
def exists(p: (A) ⇒ Boolean): Boolean

Tests whether a predicate holds for some of the elements of this iterable collection .

Tests whether a predicate holds for some of the elements of this iterable collection .
Note: may not terminate for infinite-sized collections.
p
the predicate used to test elements .
returns
true if the given predicate p holds for some of the elements of this iterable collection, otherwise false.
definition classes: IterableLike → TraversableLike → TraversableOnce
def filter(p: (A) ⇒ Boolean): This

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

Selects all elements of this iterable collection which satisfy a predicate .
p
the predicate used to test elements .
returns
a new iterable collection consisting of all elements of this iterable collection that satisfy the given predicate p. The order of the elements is preserved.
definition classes: TraversableViewLike → TraversableLike
def filterNot(p: (A) ⇒ Boolean): This

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 .
p
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 p. The order of the elements is preserved.
definition classes: TraversableLike
def finalize(): Unit

This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object .

This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object .
The details of when and if the finalize method are invoked, as well as the interaction between finalizeand non-local returns and exceptions, are all platform dependent.
attributes: protected
definition classes: AnyRef
def find(p: (A) ⇒ Boolean): Option[A]

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

Finds the first element of the iterable 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 iterable collection that satisfies p, or None if none exists.
definition classes: IterableLike → TraversableLike → TraversableOnce
def first: A
definition classes: IterableLike
1. use head' instead
def firstOption: Option[A]

None if iterable is empty.
None if iterable is empty.
definition classes: IterableLike
1. use headOption' instead
def flatMap[B](f: (A) ⇒ Traversable[B]): Iterable[B]

[use case] Builds a new collection by applying a function to all elements of this iterable collection and concatenating the results .

[use case]
Builds a new collection by applying a function to all elements of this iterable collection and concatenating the results .
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.
attributes: abstract
def flatMap[B, That](f: (A) ⇒ Traversable[B])(implicit bf: CanBuildFrom[This, B, That]): That

Builds a new collection by applying a function to all elements of this iterable collection and concatenating the results .

Builds a new collection by applying a function to all elements of this iterable collection and concatenating the results .
B
the element type of the returned collection .
That
the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.
f
the function to apply to each element .
bf
an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.
returns
a new collection of type That resulting from applying the given collection-valued function f to each element of this iterable collection and concatenating the results.
definition classes: TraversableViewLike → TraversableLike
def flatten[B]: Iterable[B]

[use case] Converts this iterable collection of traversable collections into a iterable collection in which all element collections are concatenated .

[use case]
Converts this iterable collection of traversable collections into a iterable collection in which all element collections are concatenated .
B
the type of the elements of each traversable collection .
returns
a new iterable collection resulting from concatenating all element iterable collections .
attributes: abstract
def flatten[B](implicit asTraversable: (A) ⇒ Traversable[B]): Iterable[B]

Converts this iterable collection of traversable collections into a iterable collection in which all element collections are concatenated .

Converts this iterable collection of traversable collections into a iterable collection in which all element collections are concatenated .
B
the type of the elements of each traversable collection .
asTraversable
an implicit conversion which asserts that the element type of this iterable collection is a Traversable.
returns
a new iterable collection resulting from concatenating all element iterable collections .
definition classes: GenericTraversableTemplate
def foldLeft[B](z: B)(op: (B, A) ⇒ B): B

Applies a binary operator to a start value and all elements of this iterable collection, going left to right .
Applies a binary operator to a start value and all elements of this iterable 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 iterable collection, going left to right with the start value z on the left: op(...op(z, x₁), x₂, ..., x_n) where x,,1,,, ..., x,,n,, are the elements of this iterable collection.
definition classes: TraversableOnce
def foldRight[B](z: B)(op: (A, B) ⇒ B): B

Applies a binary operator to all elements of this iterable collection and a start value, going right to left .
Applies a binary operator to all elements of this iterable 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 iterable collection, going right to left with the start value z on the right: op(x₁, op(x₂, ... op(x_n, z)...)) where x,,1,,, ..., x,,n,, are the elements of this iterable collection.
definition classes: IterableLike → TraversableOnce
def forall(p: (A) ⇒ Boolean): Boolean

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

Tests whether a predicate holds for all elements of this iterable collection .
Note: may not terminate for infinite-sized collections.
p
the predicate used to test elements .
returns
true if the given predicate p holds for all elements of this iterable collection, otherwise false.
definition classes: IterableLike → TraversableLike → TraversableOnce
def force[B >: A, That](implicit bf: CanBuildFrom[Coll, B, That]): That

definition classes: TraversableViewLike
def foreach(f: (A) ⇒ Unit): Unit

[use case] Applies a function f to all elements of this iterable collection.

[use case]
Applies a function f to all elements of this iterable collection.
f
the function that is applied for its side-effect to every element. The result of function f is discarded.
attributes: abstract
def foreach[U](f: (A) ⇒ U): Unit

Applies a function f to all elements of this iterable collection.

Applies a function f to all elements of this iterable collection.
Note: this method underlies the implementation of most other bulk operations. Subclasses should re-implement this method if a more efficient implementation exists.
U
the type parameter describing the result of function f. This result will always be ignored. Typically U is Unit, but this is not necessary.
f
the function that is applied for its side-effect to every element. The result of function f is discarded.
definition classes: IterableLike → TraversableLike → TraversableOnce
def genericBuilder[B]: Builder[B, Iterable[B]]

The generic builder that builds instances of Iterable at arbitrary element types .

The generic builder that builds instances of Iterable at arbitrary element types .
definition classes: GenericTraversableTemplate
def getClass(): java.lang.Class[_ <: java.lang.Object]

Returns a representation that corresponds to the dynamic class of the receiver object .

Returns a representation that corresponds to the dynamic class of the receiver object .
The nature of the representation is platform dependent.
returns
a representation that corresponds to the dynamic class of the receiver object .
attributes: final
definition classes: AnyRef
def groupBy[K](f: (A) ⇒ K): Map[K, This]

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: this method is not re-implemented by views. This means when applied to a view it will always force the view and return a new iterable collection.
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 partition 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: TraversableViewLike → TraversableLike
def grouped(size: Int): Iterator[This]

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 truncated if the elements don't divide evenly.
definition classes: IterableViewLike → IterableLike
1. Iterator#grouped
def hasDefiniteSize: Boolean

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

Tests whether this iterable 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.
Note: many collection methods will not work on collections of infinite sizes.
returns
true if this collection is known to have finite size, false otherwise.
definition classes: TraversableLike → TraversableOnce
def hashCode(): Int

Returns a hash code value for the object .

Returns 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 the object .
definition classes: AnyRef → Any
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: IterableLike → TraversableLike
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: TraversableLike
def init: This

Selects all elements except the last .

Selects all elements except the last .
Note: might return different results for different runs, unless the underlying collection type is ordered.
returns
a iterable collection consisting of all elements of this iterable collection except the last one .
definition classes: TraversableViewLike → TraversableLike
def isEmpty: Boolean

Tests whether this iterable collection is empty .

Tests whether this iterable collection is empty .
returns
true if the iterable collection contain no elements, false otherwise.
definition classes: IterableLike → TraversableLike → TraversableOnce
def isInstanceOf[T0]: Boolean

This method is used to test whether the dynamic type of the receiver object is T0.

This method is used to test whether the dynamic type of the receiver object is T0.
Note that the test result of the test is modulo Scala's erasure semantics. Therefore the expression1.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 requested typed.
returns
true if the receiver object is an instance of erasure of type T0; false otherwise.
attributes: final
definition classes: Any
def isTraversableAgain: Boolean

Tests whether this iterable collection can be repeatedly traversed .

Tests whether this iterable collection can be repeatedly traversed .
returns
true
attributes: final
definition classes: TraversableLike → TraversableOnce
def iterator: Iterator[A]

Creates a new iterator over all elements contained in this iterable object .

Creates a new iterator over all elements contained in this iterable object .
returns
the new iterator
attributes: abstract
definition classes: IterableLike
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 first element of this iterable collection .
definition classes: TraversableLike
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: TraversableLike
def map[B](f: (A) ⇒ B): Iterable[B]

[use case] Builds a new collection by applying a function to all elements of this iterable collection .

[use case]
Builds a new collection by applying a function to all elements of this iterable collection .
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 function f to each element of this iterable collection and collecting the results.
attributes: abstract
def map[B, That](f: (A) ⇒ B)(implicit bf: CanBuildFrom[This, B, That]): That

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

Builds a new collection by applying a function to all elements of this iterable collection .
B
the element type of the returned collection .
That
the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.
f
the function to apply to each element .
bf
an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.
returns
a new collection of type That resulting from applying the given function f to each element of this iterable collection and collecting the results.
definition classes: TraversableViewLike → TraversableLike
def max: A

[use case] Finds the largest element .

[use case]
Finds the largest element .
returns
the largest element of this iterable collection .
attributes: abstract
def max[B >: A](implicit cmp: Ordering[B]): A

Finds the largest element .

Finds the largest element .
B
The type over which the ordering is defined .
cmp
An ordering to be used for comparing elements .
returns
the largest element of this iterable collection with respect to the ordering cmp.
definition classes: TraversableOnce
def min: A

[use case] Finds the smallest element .

[use case]
Finds the smallest element .
returns
the smallest element of this iterable collection
attributes: abstract
def min[B >: A](implicit cmp: Ordering[B]): A

Finds the smallest element .

Finds the smallest element .
B
The type over which the ordering is defined .
cmp
An ordering to be used for comparing elements .
returns
the smallest element of this iterable collection with respect to the ordering cmp.
definition classes: TraversableOnce
def mkString: String

Displays all elements of this iterable collection in a string .

Displays all elements of this iterable collection in a string .
returns
a string representation of this iterable collection. In the resulting string the string representations (w.r.t. the method toString) of all elements of this iterable collection follow each other without any separator string.
definition classes: TraversableOnce
def mkString(sep: String): String

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

Displays all elements of this iterable collection in a string using a separator string .
sep
the separator string .
returns
a string representation of this iterable collection. In the resulting string the string representations (w.r.t. the method toString) of all elements of this iterable collection are separated by the string sep.
definition classes: TraversableOnce
def mkString(start: String, sep: String, end: String): String

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

Displays all elements of this iterable collection in a string using start, end, and separator strings .
start
the starting string .
sep
the separator string .
end
the ending string .
returns
a string representation of this iterable 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 iterable collection are separated by the string sep.
definition classes: TraversableOnce
def ne(arg0: AnyRef): Boolean

o.ne(arg0) is the same as !(o.eq(arg0)).

o.ne(arg0) is the same as !(o.eq(arg0)).
arg0
the object to compare against this object for reference dis-equality .
returns
false if the argument is not a reference to the receiver object; true otherwise.
attributes: final
definition classes: AnyRef
def newAppended[B >: A](that: Traversable[B]): Transformed[B]

attributes: protected
definition classes: IterableViewLike → TraversableViewLike
def newBuilder: Builder[A, This]

The builder that builds instances of type Iterable[A]

The builder that builds instances of type Iterable[A]
attributes: protected[this]
definition classes: TraversableViewLike → GenericTraversableTemplate → TraversableLike → HasNewBuilder
def newDroppedWhile(p: (A) ⇒ Boolean): Transformed[A]

attributes: protected
definition classes: IterableViewLike → TraversableViewLike
def newFiltered(p: (A) ⇒ Boolean): Transformed[A]

attributes: protected
definition classes: IterableViewLike → TraversableViewLike
def newFlatMapped[B](f: (A) ⇒ Traversable[B]): Transformed[B]

attributes: protected
definition classes: IterableViewLike → TraversableViewLike
def newForced[B](xs: ⇒ Seq[B]): Transformed[B]

Boilerplate method, to override in each subclass This method could be eliminated if Scala had virtual classes

Boilerplate method, to override in each subclass This method could be eliminated if Scala had virtual classes
attributes: protected
definition classes: IterableViewLike → TraversableViewLike
def newMapped[B](f: (A) ⇒ B): Transformed[B]

attributes: protected
definition classes: IterableViewLike → TraversableViewLike
def newSliced(_from: Int, _until: Int): Transformed[A]

attributes: protected
definition classes: IterableViewLike → TraversableViewLike
def newTakenWhile(p: (A) ⇒ Boolean): Transformed[A]

attributes: protected
definition classes: IterableViewLike → TraversableViewLike
def newZipped[B](that: Iterable[B]): Transformed[(A, B)]

attributes: protected
def newZippedAll[A1 >: A, B](that: Iterable[B], _thisElem: A1, _thatElem: B): Transformed[(A1, B)]

attributes: protected
def nonEmpty: Boolean

Tests whether the iterable collection is not empty .

Tests whether the iterable collection is not empty .
returns
true if the iterable collection contains at least one element, false otherwise.
definition classes: TraversableOnce
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 .
attributes: final
definition classes: AnyRef
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 .
attributes: final
definition classes: AnyRef
def partition(p: (A) ⇒ Boolean): (This, This)

Partitions this iterable collection in two iterable collections according to a predicate .

Partitions this iterable collection in two iterable collections according to a predicate .
p
the predicate on which to partition .
returns
a pair of iterable collections: the first iterable collection consists of all elements that satisfy the predicate p and the second iterable collection consists of all elements that don't. The relative order of the elements in the resulting iterable collections is the same as in the original iterable collection.
definition classes: TraversableViewLike → TraversableLike
def product: Int

[use case] Multiplies up the elements of this collection .

[use case]
Multiplies up the elements of this collection .
returns
the product of all elements in this iterable collection of numbers of type Int. Instead of Int, any other type T with an implicit Numeric[T] implementation can be used as element type of the iterable collection and as result type of product. Examples of such types are: Long, Float, Double, BigInt.
attributes: abstract
def product[B >: A](implicit num: 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 iterable collection with respect to the * operator in num.
definition classes: TraversableOnce
def projection: IterableView[A, This]

returns a projection that can be used to call non-strict filter,map, and flatMap methods that build projections of the collection.
returns a projection that can be used to call non-strict filter,map, and flatMap methods that build projections of the collection.
definition classes: IterableLike
1. use view' instead
def reduceLeft[B >: A](op: (B, A) ⇒ B): B

Applies a binary operator to all elements of this iterable collection, going left to right .
Applies a binary operator to all elements of this iterable 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 iterable collection, going left to right: op(...(op(x₁, x₂), ... ) , x_n) where x,,1,,, ..., x,,n,, are the elements of this iterable collection.
definition classes: TraversableOnce
def reduceLeftOption[B >: A](op: (B, A) ⇒ B): Option[B]

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

Optionally applies a binary operator to all elements of this iterable 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) is this iterable collection is nonempty, None otherwise.
definition classes: TraversableOnce
def reduceRight[B >: A](op: (A, B) ⇒ B): B

Applies a binary operator to all elements of this iterable collection, going right to left .
Applies a binary operator to all elements of this iterable 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 iterable collection, going right to left: op(x₁, op(x₂, ..., op(x_n-1, x_n)...)) where x,,1,,, ..., x,,n,, are the elements of this iterable collection.
definition classes: IterableLike → TraversableOnce
def reduceRightOption[B >: A](op: (A, B) ⇒ B): Option[B]

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

Optionally applies a binary operator to all elements of this iterable 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) is this iterable collection is nonempty, None otherwise.
definition classes: TraversableOnce
def repr: This

The collection of type iterable collection underlying this TraversableLike object.

The collection of type iterable collection underlying this TraversableLike object. By default this is implemented as the TraversableLike object itself, but this can be overridden.
definition classes: TraversableLike
def reversed: List[A]

attributes: protected[this]
definition classes: TraversableOnce
def sameElements(that: Iterable[A]): Boolean

[use case] Checks if the other iterable collection contains the same elements in the same order as this iterable collection .

[use case]
Checks if the other iterable collection contains the same elements in the same order as this iterable collection .
that
the collection to compare with .
returns
true, if both collections contain the same elements in the same order, false otherwise.
attributes: abstract
def sameElements[B >: A](that: Iterable[B]): Boolean

Checks if the other iterable collection contains the same elements in the same order as this iterable collection .

Checks if the other iterable collection contains the same elements in the same order as this iterable collection .
Note: might return different results for different runs, unless the underlying collection type is ordered.
Note: will not terminate for infinite-sized collections.
B
the type of the elements of collection that.
that
the collection to compare with .
returns
true, if both collections contain the same elements in the same order, false otherwise.
definition classes: IterableLike
def scanLeft[B, That](z: B)(op: (B, A) ⇒ B)(implicit bf: CanBuildFrom[This, B, That]): That

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

Produces a collection containing cummulative results of applying the operator 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.
B
the type of the elements in the resulting collection
That
the actual type of the resulting collection
z
the initial value
op
the binary operator applied to the intermediate result and the element
bf
an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.
returns
collection with intermediate results
definition classes: TraversableViewLike → TraversableLike
def scanRight[B, That](z: B)(op: (A, B) ⇒ B)(implicit bf: CanBuildFrom[This, B, That]): That

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

Produces a collection containing cummulative results of applying the operator 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.
B
the type of the elements in the resulting collection
That
the actual type of the resulting collection
z
the initial value
op
the binary operator applied to the intermediate result and the element
bf
an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.
returns
collection with intermediate results
definition classes: TraversableViewLike → TraversableLike
def size: Int

The size of this iterable collection .

The size of this iterable collection .
Note: will not terminate for infinite-sized collections.
returns
the number of elements in this iterable collection .
definition classes: TraversableOnce
def slice(from: Int, until: Int): This

Selects an interval of elements .

Selects an interval of elements .
Note: c.slice(from, to) is equivalent to (but possibly more efficient than) c.drop(from).take(to - from)
Note: might return different results for different runs, unless the underlying collection type is ordered.
from
the index of the first returned element in this iterable collection .
until
the index one past the last returned element in this iterable collection .
returns
a iterable collection containing the elements starting at index from and extending up to (but not including) index until of this iterable collection.
definition classes: TraversableViewLike → TraversableLike
def sliding[B >: A](size: Int, step: Int): Iterator[This]

definition classes: IterableViewLike → IterableLike
def sliding[B >: A](size: Int): Iterator[This]

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
returns
An iterator producing iterable collections of size size, except the last will be truncated if the elements don't divide evenly.
definition classes: IterableLike
1. Iterator#sliding
def span(p: (A) ⇒ Boolean): (This, This)

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: TraversableViewLike → TraversableLike
def splitAt(n: Int): (This, This)

Splits this iterable collection into two at a given position .

Splits this iterable collection into two 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: TraversableViewLike → TraversableLike
def stringPrefix: String

Defines the prefix of this object's toString representation.

Defines the prefix of this object's toString representation.
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.
definition classes: IterableViewLike → TraversableViewLike → TraversableLike
def sum: Int

[use case] Sums up the elements of this collection .

[use case]
Sums up the elements of this collection .
returns
the sum of all elements in this iterable collection of numbers of type Int. Instead of Int, any other type T with an implicit Numeric[T] implementation can be used as element type of the iterable collection and as result type of sum. Examples of such types are: Long, Float, Double, BigInt.
attributes: abstract
def sum[B >: A](implicit num: 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 iterable collection with respect to the + operator in num.
definition classes: TraversableOnce
def synchronized[T0](arg0: T0): T0

attributes: final
definition classes: AnyRef
def tail: This

Selects all elements except the first .

Selects all elements except the first .
Note: might return different results for different runs, unless the underlying collection type is ordered.
returns
a iterable collection consisting of all elements of this iterable collection except the first one .
definition classes: TraversableLike
def take(n: Int): This

Selects first n elements.

Selects first n elements.
Note: might return different results for different runs, unless the underlying collection type is ordered.
n
Tt 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.
definition classes: TraversableViewLike → TraversableLike
def takeRight(n: Int): This

Selects last n elements.

Selects 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
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.
definition classes: IterableLike
def takeWhile(p: (A) ⇒ Boolean): This

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: TraversableViewLike → TraversableLike
def thisCollection: Iterable[A]

The underlying collection seen as an instance of Iterable.

The underlying collection seen as an instance of Iterable. By default this is implemented as the current collection object itself, but this can be overridden.
attributes: protected[this]
definition classes: IterableLike → TraversableLike
def thisSeq: Seq[A]

attributes: protected[this]
definition classes: TraversableViewLike
def toArray: Array[A]

[use case] Converts this iterable collection to an array .

[use case]
Converts this iterable collection to an array .
Note: will not terminate for infinite-sized collections.
returns
an array containing all elements of this iterable collection. A ClassManifest must be available for the element type of this iterable collection.
attributes: abstract
def toArray[B >: A](implicit arg0: ClassManifest[B]): Array[B]

Converts this iterable collection to an array .

Converts this iterable collection to an array .
Note: will not terminate for infinite-sized collections.
B
the type of the elements of the array. A ClassManifest for this type must be available.
returns
an array containing all elements of this iterable collection .
definition classes: TraversableOnce
def toCollection(repr: This): Iterable[A]

A conversion from collections of type Repr to Iterable objects.

A conversion from collections of type Repr to Iterable objects. By default this is implemented as just a cast, but this can be overridden.
attributes: protected[this]
definition classes: IterableLike → TraversableLike
def toIndexedSeq[B >: A]: IndexedSeq[B]

Converts this iterable collection to an indexed sequence .

Converts this iterable collection to an indexed sequence .
Note: will not terminate for infinite-sized collections.
returns
an indexed sequence containing all elements of this iterable collection .
definition classes: TraversableOnce
def toIterable: Iterable[A]

Converts this iterable collection to an iterable collection .

Converts this iterable collection to an iterable collection .
Note: will not terminate for infinite-sized collections.
returns
an Iterable containing all elements of this iterable collection.
definition classes: IterableLike → TraversableOnce
def toIterator: Iterator[A]

Returns an Iterator over the elements in this iterable collection .

Returns an Iterator over the elements in this iterable collection . Will return the same Iterator if this instance is already an Iterator.
Note: will not terminate for infinite-sized collections.
returns
an Iterator containing all elements of this iterable collection .
definition classes: TraversableLike → TraversableOnce
def toList: List[A]

Converts this iterable collection to a list .

Converts this iterable collection to a list .
Note: will not terminate for infinite-sized collections.
returns
a list containing all elements of this iterable collection .
definition classes: TraversableOnce
def toMap[T, U](implicit ev: <:<[A, (T, U)]): Map[T, U]

Converts this iterable collection to a map .

Converts this iterable collection to a map . This method is unavailable unless the elements are members of Tuple2, each ((K, V)) becoming a key-value pair in the map. Duplicate keys will be overwritten by later keys: if this is an unordered collection, which key is in the resulting map is undefined.
Note: will not terminate for infinite-sized collections.
returns
a map containing all elements of this iterable collection .
definition classes: TraversableOnce
def toSeq: Seq[A]

Converts this iterable collection to a sequence .

Converts this iterable collection to a sequence .
Note: will not terminate for infinite-sized collections.
returns
a sequence containing all elements of this iterable collection .
definition classes: TraversableOnce
def toSet[B >: A]: Set[B]

Converts this iterable collection to a set .

Converts this iterable collection to a set .
Note: will not terminate for infinite-sized collections.
returns
a set containing all elements of this iterable collection .
definition classes: TraversableOnce
def toStream: Stream[A]

Converts this iterable collection to a stream .

Converts this iterable collection to a stream .
Note: will not terminate for infinite-sized collections.
returns
a stream containing all elements of this iterable collection .
definition classes: IterableLike → TraversableOnce
def toString(): String

Converts this iterable collection to a string .

Converts this iterable collection to a string .
returns
a string representation of this collection. By default this string consists of the stringPrefix of this iterable collection, followed by all elements separated by commas and enclosed in parentheses.
definition classes: TraversableLike → AnyRef → Any
def toTraversable: Traversable[A]

Converts this iterable collection to an unspecified Traversable .

Converts this iterable collection to an unspecified Traversable . Will return the same collection if this instance is already Traversable.
Note: will not terminate for infinite-sized collections.
returns
a Traversable containing all elements of this iterable collection .
definition classes: TraversableLike → TraversableOnce
def transpose[B](implicit asTraversable: (A) ⇒ Traversable[B]): Iterable[Iterable[B]]

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

Transposes this iterable collection of traversable collections into a iterable collection of iterable collections .
B
the type of the elements of each traversable collection .
asTraversable
an implicit conversion which asserts that the element type of this iterable collection is a Traversable.
returns
a two-dimensional iterable collection of iterable collections which has as nth row the nth column of this iterable collection.
definition classes: GenericTraversableTemplate
def underlying: Coll

attributes: protected abstract
definition classes: TraversableViewLike
def unzip[A1, A2](implicit asPair: (A) ⇒ (A1, A2)): (Iterable[A1], Iterable[A2])

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

Converts this iterable collection of pairs into two collections of the first and second halfs of each pair .
asPair
an implicit conversion which asserts that the element type of this iterable collection is a pair .
returns
a pair iterable collections, containing the first, respectively second half of each element pair of this iterable collection .
definition classes: GenericTraversableTemplate
def view(from: Int, until: Int): IterableView[A, This]

Creates a non-strict view of a slice of this iterable collection .

Creates a non-strict view of a slice of this iterable collection .
Note: the difference between view and slice is that view produces a view of the current iterable collection, whereas slice produces a new iterable collection.
Note: view(from, to) is equivalent to view.slice(from, to)
Note: might return different results for different runs, unless the underlying collection type is ordered.
from
the index of the first element of the view
until
the index of the element following the view
returns
a non-strict view of a slice of this iterable collection, starting at index from and extending up to (but not including) index until.
definition classes: IterableLike → TraversableLike
def view: IterableView[A, This]

Creates a non-strict view of this iterable collection .

Creates a non-strict view of this iterable collection .
returns
a non-strict view of this iterable collection .
definition classes: IterableLike → TraversableLike
def wait(): Unit

attributes: final
definition classes: AnyRef
def wait(arg0: Long, arg1: Int): Unit

attributes: final
definition classes: AnyRef
def wait(arg0: Long): Unit

attributes: final
definition classes: AnyRef
def withFilter(p: (A) ⇒ Boolean): WithFilter

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: TraversableLike
def zip[B](that: Iterable[B]): Iterable[(A, B)]

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

[use case]
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.
attributes: abstract
def zip[A1 >: A, B, That](that: Iterable[B])(implicit bf: CanBuildFrom[This, (A1, B), That]): That

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.
Note: might return different results for different runs, unless the underlying collection type is ordered.
A1
the type of the first half of the returned pairs (this is always a supertype of the collection's element type A).
B
the type of the second half of the returned pairs
That
the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type (A1, B) being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, (A1, B), That]. is found.
that
The iterable providing the second half of each result pair
bf
an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and the new element type (A1, B).
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 minimum of the lengths of this iterable collection and that.
definition classes: IterableViewLike → IterableLike
def zipAll[B](that: Iterable[B], thisElem: A, thatElem: B): Iterable[(A, B)]

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

[use case]
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.
B
the type of the second half of the returned pairs
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 iterable collection 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.
attributes: abstract
def zipAll[B, A1 >: A, That](that: Iterable[B], thisElem: A1, thatElem: B)(implicit bf: CanBuildFrom[This, (A1, B), That]): That

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.
Note: might return different results for different runs, unless the underlying collection type is ordered.
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: IterableViewLike → IterableLike
def zipWithIndex: Iterable[(A, Int)]

[use case] Zips this iterable collection with its indices .

[use case]
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. @example List("a", "b", "c").zipWithIndex = List(("a", 0), ("b", 1), ("c", 2))
attributes: abstract
def zipWithIndex[A1 >: A, That](implicit bf: CanBuildFrom[This, (A1, Int), That]): That

Zips this iterable collection with its indices .

Zips this iterable collection with its indices .
Note: might return different results for different runs, unless the underlying collection type is ordered.
A1
the type of the first half of the returned pairs (this is always a supertype of the collection's element type A).
That
the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type (A1, Int) being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, (A1, Int), That]. is found.
returns
A new collection of type That containing pairs consisting of all elements of this iterable collection paired with their index. Indices start at 0.
definition classes: IterableViewLike → IterableLike

IterableViewLike

trait IterableViewLike[+A, +Coll, +This <: IterableView[A, Coll] with IterableViewLike[A, Coll, This]] extends Iterable[A] with IterableLike[A, This] with TraversableView[A, Coll] with TraversableViewLike[A, Coll, This]

Type Members

type Self = This

Value Members

def !=(arg0: AnyRef): Boolean

def !=(arg0: Any): Boolean

def ##(): Int

def $asInstanceOf[T0](): T0

def $isInstanceOf[T0](): Boolean

def ++(that: TraversableOnce[A]): Iterable[A]

def ++[B >: A, That](xs: TraversableOnce[B])(implicit bf: CanBuildFrom[This, B, That]): That

def /:[B](z: B)(op: (B, A) ⇒ B): B

def :\[B](z: B)(op: (A, B) ⇒ B): B

def ==(arg0: AnyRef): Boolean

def ==(arg0: Any): Boolean

def addString(b: StringBuilder): StringBuilder

def addString(b: StringBuilder, sep: String): StringBuilder

def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

def asInstanceOf[T0]: T0

def canEqual(that: Any): Boolean

def clone(): AnyRef

def collect[B](pf: PartialFunction[A, B]): Iterable[B]

def collect[B, That](pf: PartialFunction[A, B])(implicit bf: CanBuildFrom[This, B, That]): That

def companion: GenericCompanion[Iterable[A][A]]

def copyToArray(xs: Array[A], start: Int, len: Int): Unit

def copyToArray[B >: A](xs: Array[B], start: Int, len: Int): Unit

def copyToArray(xs: Array[A]): Unit

def copyToArray[B >: A](xs: Array[B]): Unit

def copyToArray(xs: Array[A], start: Int): Unit

def copyToArray[B >: A](xs: Array[B], start: Int): Unit

def copyToBuffer[B >: A](dest: Buffer[B]): Unit

def count(p: (A) ⇒ Boolean): Int

def drop(n: Int): This

def dropRight(n: Int): This

def dropWhile(p: (A) ⇒ Boolean): This

def elements: Iterator[A]

def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def exists(p: (A) ⇒ Boolean): Boolean

def filter(p: (A) ⇒ Boolean): This

def filterNot(p: (A) ⇒ Boolean): This

def finalize(): Unit

def find(p: (A) ⇒ Boolean): Option[A]

def first: A

def firstOption: Option[A]

def flatMap[B](f: (A) ⇒ Traversable[B]): Iterable[B]

def flatMap[B, That](f: (A) ⇒ Traversable[B])(implicit bf: CanBuildFrom[This, B, That]): That

def flatten[B]: Iterable[B]

def flatten[B](implicit asTraversable: (A) ⇒ Traversable[B]): Iterable[B]

def foldLeft[B](z: B)(op: (B, A) ⇒ B): B

def foldRight[B](z: B)(op: (A, B) ⇒ B): B

def forall(p: (A) ⇒ Boolean): Boolean

def force[B >: A, That](implicit bf: CanBuildFrom[Coll, B, That]): That

def foreach(f: (A) ⇒ Unit): Unit

def foreach[U](f: (A) ⇒ U): Unit

def genericBuilder[B]: Builder[B, Iterable[B]]

def getClass(): java.lang.Class[_ <: java.lang.Object]

def groupBy[K](f: (A) ⇒ K): Map[K, This]

def grouped(size: Int): Iterator[This]

def hasDefiniteSize: Boolean

def hashCode(): Int

def head: A

def headOption: Option[A]

def init: This

def isEmpty: Boolean

def isInstanceOf[T0]: Boolean

def isTraversableAgain: Boolean

def iterator: Iterator[A]

def last: A

def lastOption: Option[A]

def map[B](f: (A) ⇒ B): Iterable[B]

def map[B, That](f: (A) ⇒ B)(implicit bf: CanBuildFrom[This, B, That]): That

def max: A

def max[B >: A](implicit cmp: Ordering[B]): A

def min: A

def min[B >: A](implicit cmp: Ordering[B]): A

def mkString: String

def mkString(sep: String): String

def mkString(start: String, sep: String, end: String): String