scala

Array

final class Array[T] extends Serializable with Cloneable

Arrays are mutable, indexed collections of values. Array[T] is Scala's representation for Java's T[].

val numbers = Array(1, 2, 3, 4)
val first = numbers(0) // read the first element
numbers(3) = 100 // replace the 4th array element with 100
val biggerNumbers = numbers.map(_ * 2) // multiply all numbers by two

Arrays make use of two common pieces of Scala syntactic sugar, shown on lines 2 and 3 of the above example code. Line 2 is translated into a call to apply(Int), while line 3 is translated into a call to update(Int, T).

Two implicit conversions exist in scala.Predef that are frequently applied to arrays: a conversion to ArrayOps (shown on line 4 of the example above) and a conversion to WrappedArray (a subtype of scala.collections.Seq). Both types make available many of the standard operations found in the Scala collections API. The conversion to ArrayOps is temporary, as all operations defined on ArrayOps return an Array, while the conversion to WrappedArray is permanent as all operations return a WrappedArray.

The conversion to ArrayOps takes priority over the conversion to WrappedArray. For instance, consider the following code:

val arr = Array(1, 2, 3)
val arrReversed = arr.reverse
val seqReversed : Seq[Int] = arr.reverse

Value arrReversed will be of type Array[Int], with an implicit conversion to ArrayOps occurring to perform the reverse operation. The value of seqReversed, on the other hand, will be computed by converting to WrappedArray first and invoking the variant of reverse that returns another WrappedArray.

Source
Array.scala
Version

1.0

See also

"The Scala 2.8 Collections' API" section on Array by Martin Odersky for more information.

"Scala 2.8 Arrays" the Scala Improvement Document detailing arrays since Scala 2.8.

Scala Language Specification, for in-depth information on the transformations the Scala compiler makes on Arrays (Sections 6.6 and 6.15 respectively.)

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Inherited
  1. Array
  2. Cloneable
  3. Serializable
  4. AnyRef
  5. Any
Implicitly
  1. by genericArrayOps
  2. by arrayToCharSequence
  3. by any2stringadd
  4. by any2stringfmt
  5. by any2ArrowAssoc
  6. by any2Ensuring
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Instance Constructors

  1. new Array(_length: Int)

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. 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
  3. final def ##(): Int

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

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

    returns

    a hash value consistent with ==

    Definition Classes
    AnyRef → Any
  4. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from Array[T] to StringAdd performed by method any2stringadd in scala.Predef.
    Definition Classes
    StringAdd
  5. def ++[B](that: GenTraversableOnce[B]): Traversable[B]

    [use case] Returns a new traversable collection containing the elements from the left hand operand followed by the elements from the right hand operand.

    [use case]

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

    Example:

    scala> val a = LinkedList(1)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1)
    
    scala> val b = LinkedList(2)
    b: scala.collection.mutable.LinkedList[Int] = LinkedList(2)
    
    scala> val c = a ++ b
    c: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2)
    
    scala> val d = LinkedList('a')
    d: scala.collection.mutable.LinkedList[Char] = LinkedList(a)
    
    scala> val e = c ++ d
    e: scala.collection.mutable.LinkedList[AnyVal] = LinkedList(1, 2, a)
    B

    the element type of the returned collection.

    that

    the traversable to append.

    returns

    a new traversable collection which contains all elements of this traversable collection followed by all elements of that.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
    Full Signature

    def ++[B >: A, That](that: GenTraversableOnce[B])(implicit bf: CanBuildFrom[Array[T], B, That]): That

  6. def ++:[B >: A, That](that: Traversable[B])(implicit bf: CanBuildFrom[Array[T], B, That]): That

    As with ++, returns a new collection containing the elements from the left operand followed by the elements from the right operand.

    As with ++, returns a new collection containing the elements from the left operand followed by the elements from the right operand.

    It differs from ++ in that the right operand determines the type of the resulting collection rather than the left one. Mnemonic: the COLon is on the side of the new COLlection type.

    Example:

    scala> val x = List(1)
    x: List[Int] = List(1)
    
    scala> val y = LinkedList(2)
    y: scala.collection.mutable.LinkedList[Int] = LinkedList(2)
    
    scala> val z = x ++: y
    z: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2)

    This overload exists because: for the implementation of ++: we should reuse that of ++ because many collections override it with more efficient versions.

    Since TraversableOnce has no ++ method, we have to implement that directly, but Traversable and down can use the overload.

    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.

    that

    the traversable to append.

    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 traversable collection followed by all elements of that.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLike
  7. def ++:[B](that: TraversableOnce[B]): Traversable[B]

    [use case] As with ++, returns a new collection containing the elements from the left operand followed by the elements from the right operand.

    [use case]

    As with ++, returns a new collection containing the elements from the left operand followed by the elements from the right operand.

    It differs from ++ in that the right operand determines the type of the resulting collection rather than the left one. Mnemonic: the COLon is on the side of the new COLlection type.

    Example:

    scala> val x = List(1)
    x: List[Int] = List(1)
    
    scala> val y = LinkedList(2)
    y: scala.collection.mutable.LinkedList[Int] = LinkedList(2)
    
    scala> val z = x ++: y
    z: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2)
    B

    the element type of the returned collection.

    that

    the traversable to append.

    returns

    a new traversable collection which contains all elements of this traversable collection followed by all elements of that.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLike
    Full Signature

    def ++:[B >: A, That](that: TraversableOnce[B])(implicit bf: CanBuildFrom[Array[T], B, That]): That

  8. def +:(elem: A): `Seq`[A]

    [use case] A copy of the sequence with an element prepended.

    [use case]

    A copy of the sequence with an element prepended.

    Note that :-ending operators are right associative (see example). A mnemonic for +: vs. :+ is: the COLon goes on the COLlection side.

    Also, the original sequence is not modified, so you will want to capture the result.

    Example:

    scala> val x = LinkedList(1)
    x: scala.collection.mutable.LinkedList[Int] = LinkedList(1)
    
    scala> val y = 2 +: x
    y: scala.collection.mutable.LinkedList[Int] = LinkedList(2, 1)
    
    scala> println(x)
    LinkedList(1)
    elem

    the prepended element

    returns

    a new sequence consisting of elem followed by all elements of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def +:[B >: A, That](elem: B)(implicit bf: CanBuildFrom[Array[T], B, That]): That

  9. def ->[B](y: B): (Array[T], B)

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrowAssoc[Array[T]] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  10. def /:[B](z: B)(op: (B, T) ⇒ B): B

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

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

    Note: /: is alternate syntax for foldLeft; z /: xs is the same as xs foldLeft z.

    Examples:

    Note that the folding function used to compute b is equivalent to that used to compute c.

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = (5 /: a)(_+_)
    b: Int = 15
    
    scala> val c = (5 /: a)((x,y) => x + y)
    c: Int = 15

    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 traversable or iterator, going left to right with the start value z on the left:

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

    where x1, ..., xn are the elements of this traversable or iterator.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  11. def :+(elem: A): `Seq`[A]

    [use case] A copy of this sequence with an element appended.

    [use case]

    A copy of this sequence with an element appended.

    A mnemonic for +: vs. :+ is: the COLon goes on the COLlection side.

    Note: will not terminate for infinite-sized collections.

    Example:

    scala> import scala.collection.mutable.LinkedList
    import scala.collection.mutable.LinkedList
    
    scala> val a = LinkedList(1)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1)
    
    scala> val b = a :+ 2
    b: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2)
    
    scala> println(a)
    LinkedList(1)
    elem

    the appended element

    returns

    a new sequence consisting of all elements of this sequence followed by elem.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def :+[B >: A, That](elem: B)(implicit bf: CanBuildFrom[Array[T], B, That]): That

  12. def :\[B](z: B)(op: (T, B) ⇒ B): B

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

    Applies a binary operator to all elements of this traversable or iterator 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.

    Examples:

    Note that the folding function used to compute b is equivalent to that used to compute c.

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = (a :\ 5)(_+_)
    b: Int = 15
    
    scala> val c = (a :\ 5)((x,y) => x + y)
    c: Int = 15
    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 traversable or iterator, going right to left with the start value z on the right:

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

    where x1, ..., xn are the elements of this traversable or iterator.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  13. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  14. 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
  15. def addString(b: StringBuilder): StringBuilder

    Appends all elements of this traversable or iterator to a string builder.

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

    Example:

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = new StringBuilder()
    b: StringBuilder =
    
    scala> val h = a.addString(b)
    b: StringBuilder = 1234
    b

    the string builder to which elements are appended.

    returns

    the string builder b to which elements were appended.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnce
  16. def addString(b: StringBuilder, sep: String): StringBuilder

    Appends all elements of this traversable or iterator to a string builder using a separator string.

    Appends all elements of this traversable or iterator 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 traversable or iterator, separated by the string sep.

    Example:

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = new StringBuilder()
    b: StringBuilder =
    
    scala> a.addString(b, ", ")
    res0: StringBuilder = 1, 2, 3, 4
    b

    the string builder to which elements are appended.

    sep

    the separator string.

    returns

    the string builder b to which elements were appended.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnce
  17. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

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

    Appends all elements of this traversable or iterator 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 traversable or iterator are separated by the string sep.

    Example:

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = new StringBuilder()
    b: StringBuilder =
    
    scala> a.addString(b, "LinkedList(", ", ", ")")
    res1: StringBuilder = LinkedList(1, 2, 3, 4)
    b

    the string builder to which elements are appended.

    start

    the starting string.

    sep

    the separator string.

    end

    the ending string.

    returns

    the string builder b to which elements were appended.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnce
  18. def aggregate[B](z: B)(seqop: (B, T) ⇒ B, combop: (B, B) ⇒ B): B

    Aggregates the results of applying an operator to subsequent elements.

    Aggregates the results of applying an operator to subsequent elements.

    This is a more general form of fold and reduce. It has similar semantics, but does not require the result to be a supertype of the element type. It traverses the elements in different partitions sequentially, using seqop to update the result, and then applies combop to results from different partitions. The implementation of this operation may operate on an arbitrary number of collection partitions, so combop may be invoked an arbitrary number of times.

    For example, one might want to process some elements and then produce a Set. In this case, seqop would process an element and append it to the list, while combop would concatenate two lists from different partitions together. The initial value z would be an empty set.

    pc.aggregate(Set[Int]())(_ += process(_), _ ++ _)

    Another example is calculating geometric mean from a collection of doubles (one would typically require big doubles for this).

    B

    the type of accumulated results

    z

    the initial value for the accumulated result of the partition - this will typically be the neutral element for the seqop operator (e.g. Nil for list concatenation or 0 for summation)

    seqop

    an operator used to accumulate results within a partition

    combop

    an associative operator used to combine results from different partitions

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  19. def apply(i: Int): T

    The element at given index.

    The element at given index.

    Indices start at 0; xs.apply(0) is the first element of array xs. Note the indexing syntax xs(i) is a shorthand for xs.apply(i).

    i

    the index

    returns

    the element at the given index

    Exceptions thrown
    ArrayIndexOutOfBoundsException

    if i < 0 or length <= i

  20. 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.

  21. 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.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IterableLikeEquals
  22. def charAt(arg0: Int): Char

    Implicit information
    This member is added by an implicit conversion from Array[T] to CharSequence performed by method arrayToCharSequence in scala.Predef. This conversion will take place only if T is Char (T =:= Char).
    Definition Classes
    CharSequence
  23. def clone(): Array[T]

    Clone the Array.

    Clone the Array.

    returns

    A clone of the Array.

    Definition Classes
    Array → AnyRef
  24. def collect[B](pf: PartialFunction[A, B]): Traversable[B]

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

    [use case]

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

    B

    the element type of the returned collection.

    pf

    the partial function which filters and maps the traversable collection.

    returns

    a new traversable 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.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
    Full Signature

    def collect[B, That](pf: PartialFunction[T, B])(implicit bf: CanBuildFrom[Array[T], B, That]): That

  25. def collectFirst[B](pf: PartialFunction[T, B]): Option[B]

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

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

    Note: may not terminate for infinite-sized collections.

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

    pf

    the partial function

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnce
    Example:
    1. Seq("a", 1, 5L).collectFirst({ case x: Int => x*10 }) = Some(10)

  26. def combinations(n: Int): Iterator[Array[T]]

    Iterates over combinations.

    Iterates over combinations.

    returns

    An Iterator which traverses the possible n-element combinations of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
    Example:
    1. "abbbc".combinations(2) = Iterator(ab, ac, bb, bc)

  27. def contains(elem: Any): Boolean

    Tests whether this sequence contains a given value as an element.

    Tests whether this sequence contains a given value as an element.

    Note: may not terminate for infinite-sized collections.

    elem

    the element to test.

    returns

    true if this sequence has an element that is equal (as determined by ==) to elem, false otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
  28. def containsSlice[B](that: GenSeq[B]): Boolean

    Tests whether this sequence contains a given sequence as a slice.

    Tests whether this sequence contains a given sequence as a slice.

    Note: may not terminate for infinite-sized collections.

    that

    the sequence to test

    returns

    true if this sequence contains a slice with the same elements as that, otherwise false.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
  29. def copyToArray(xs: Array[A], start: Int, len: Int): Unit

    [use case] Copies elements of this mutable indexed sequence to an array.

    [use case]

    Copies elements of this mutable indexed sequence to an array. Fills the given array xs with at most len elements of this mutable indexed sequence, starting at position start. Copying will stop once either the end of the current mutable indexed sequence 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.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    ArrayOpsIndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
    Full Signature

    def copyToArray[U >: T](xs: Array[U], start: Int, len: Int): Unit

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

    [use case] Copies values of this traversable or iterator to an array.

    [use case]

    Copies values of this traversable or iterator to an array. Fills the given array xs with values of this traversable or iterator. Copying will stop once either the end of the current traversable or iterator is reached, or the end of the array is reached.

    Note: will not terminate for infinite-sized collections.

    xs

    the array to fill.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

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

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

    [use case] Copies values of this traversable or iterator to an array.

    [use case]

    Copies values of this traversable or iterator to an array. Fills the given array xs with values of this traversable or iterator, beginning at index start. Copying will stop once either the end of the current traversable or iterator is reached, or the end of the array is reached.

    Note: will not terminate for infinite-sized collections.

    xs

    the array to fill.

    start

    the starting index.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

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

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

    Copies all elements of this traversable or iterator to a buffer.

    Copies all elements of this traversable or iterator to a buffer.

    Note: will not terminate for infinite-sized collections.

    dest

    The buffer to which elements are copied.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnce
  33. def corresponds[B](that: GenSeq[B])(p: (T, B) ⇒ Boolean): Boolean

    Tests whether every element of this sequence relates to the corresponding element of another sequence by satisfying a test predicate.

    Tests whether every element of this sequence relates to the corresponding element of another sequence by satisfying a test predicate.

    B

    the type of the elements of that

    that

    the other sequence

    p

    the test predicate, which relates elements from both sequences

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
  34. def count(p: (T) ⇒ Boolean): Int

    Counts the number of elements in the traversable or iterator which satisfy a predicate.

    Counts the number of elements in the traversable or iterator which satisfy a predicate.

    p

    the predicate used to test elements.

    returns

    the number of elements satisfying the predicate p.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  35. def deep: IndexedSeq[Any]

    Creates a possible nested IndexedSeq which consists of all the elements of this array.

    Creates a possible nested IndexedSeq which consists of all the elements of this array. If the elements are arrays themselves, the deep transformation is applied recursively to them. The stringPrefix of the IndexedSeq is "Array", hence the IndexedSeq prints like an array with all its elements shown, and the same recursively for any subarrays.

    Example:

    Array(Array(1, 2), Array(3, 4)).deep.toString

    prints: Array(Array(1, 2), Array(3, 4))

    returns

    An possibly nested indexed sequence of consisting of all the elements of the array.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    ArrayLike
  36. def diff(that: Seq[T]): `Seq`[T]

    [use case] Computes the multiset difference between this sequence and another sequence.

    [use case]

    Computes the multiset difference between this sequence and another sequence.

    Note: will not terminate for infinite-sized collections.

    that

    the sequence of elements to remove

    returns

    a new sequence which contains all elements of this sequence except some of occurrences of elements that also appear in that. If an element value x appears n times in that, then the first n occurrences of x will not form part of the result, but any following occurrences will.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def diff[B >: A](that: GenSeq[B]): Array[T]

  37. def distinct: Array[T]

    Builds a new sequence from this sequence without any duplicate elements.

    Builds a new sequence from this sequence without any duplicate elements.

    Note: will not terminate for infinite-sized collections.

    returns

    A new sequence which contains the first occurrence of every element of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
  38. def drop(n: Int): Array[T]

    Selects all elements except first n ones.

    Selects all elements except first n ones.

    n

    the number of elements to drop from this sequence.

    returns

    a sequence consisting of all elements of this sequence except the first n ones, or else the empty sequence, if this sequence has less than n elements.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
  39. def dropRight(n: Int): Array[T]

    Selects all elements except last n ones.

    Selects all elements except last n ones.

    n

    The number of elements to take

    returns

    a sequence consisting of all elements of this sequence except the last n ones, or else the empty sequence, if this sequence has less than n elements.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLike
  40. def dropWhile(p: (T) ⇒ Boolean): Array[T]

    Drops longest prefix of elements that satisfy a predicate.

    Drops longest prefix of elements that satisfy a predicate.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
  41. def endsWith[B](that: GenSeq[B]): Boolean

    Tests whether this sequence ends with the given sequence.

    Tests whether this sequence ends with the given sequence.

    that

    the sequence to test

    returns

    true if this sequence has that as a suffix, false otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  42. def ensuring(cond: (Array[T]) ⇒ Boolean, msg: ⇒ Any): Array[T]

    Implicit information
    This member is added by an implicit conversion from Array[T] to Ensuring[Array[T]] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  43. def ensuring(cond: (Array[T]) ⇒ Boolean): Array[T]

    Implicit information
    This member is added by an implicit conversion from Array[T] to Ensuring[Array[T]] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  44. def ensuring(cond: Boolean, msg: ⇒ Any): Array[T]

    Implicit information
    This member is added by an implicit conversion from Array[T] to Ensuring[Array[T]] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  45. def ensuring(cond: Boolean): Array[T]

    Implicit information
    This member is added by an implicit conversion from Array[T] to Ensuring[Array[T]] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  46. final def eq(arg0: AnyRef): Boolean

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    Tests whether the argument (arg0) is a reference to the receiver object (this).

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

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

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

    returns

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

    Definition Classes
    AnyRef
  47. def equals(arg0: Any): Boolean

    The equality method for reference types.

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

    See also equals in Any.

    returns

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

    Definition Classes
    AnyRef → Any
  48. def exists(p: (T) ⇒ Boolean): Boolean

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

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

    p

    the predicate used to test elements.

    returns

    true if the given predicate p holds for some of the elements of this sequence, otherwise false.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
  49. def filter(p: (T) ⇒ Boolean): Array[T]

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

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

    p

    the predicate used to test elements.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  50. def filterNot(p: (T) ⇒ Boolean): Array[T]

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

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

    p

    the predicate used to test elements.

    returns

    a new traversable collection consisting of all elements of this traversable collection that do not satisfy the given predicate p. The order of the elements is preserved.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  51. def finalize(): Unit

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

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

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

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
    Note

    not specified by SLS as a member of AnyRef

  52. def find(p: (T) ⇒ Boolean): Option[T]

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

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

    p

    the predicate used to test elements.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
  53. def flatMap[B](f: (A) ⇒ GenTraversableOnce[B]): Traversable[B]

    [use case] Builds a new collection by applying a function to all elements of this traversable collection and using the elements of the resulting collections.

    [use case]

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

    For example:

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

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

    // lettersOf will return a Seq[Char] of likely repeated letters, instead of a Set
    def lettersOf(words: Seq[String]) = words flatMap (word => word.toSet)
    
    // lettersOf will return a Set[Char], not a Seq
    def lettersOf(words: Seq[String]) = words.toSet flatMap (word => word.toSeq)
    
    // xs will be a an Iterable[Int]
    val xs = Map("a" -> List(11,111), "b" -> List(22,222)).flatMap(_._2)
    
    // ys will be a Map[Int, Int]
    val ys = Map("a" -> List(1 -> 11,1 -> 111), "b" -> List(2 -> 22,2 -> 222)).flatMap(_._2)
    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLikeFilterMonadic
    Full Signature

    def flatMap[B, That](f: (T) ⇒ GenTraversableOnce[B])(implicit bf: CanBuildFrom[Array[T], B, That]): That

  54. def flatten[U](implicit asTrav: (T) ⇒ Traversable[U], m: ClassTag[U]): Array[U]

    Flattens a two-dimensional array by concatenating all its rows into a single array.

    Flattens a two-dimensional array by concatenating all its rows into a single array.

    U

    Type of row elements.

    asTrav

    A function that converts elements of this array to rows - arrays of type U.

    returns

    An array obtained by concatenating rows of this array.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    ArrayOps
  55. def fold[A1 >: A](z: A1)(op: (A1, A1) ⇒ A1): A1

    Folds the elements of this traversable or iterator using the specified associative binary operator.

    Folds the elements of this traversable or iterator using the specified associative binary operator.

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

    A1

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

    z

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

    op

    a binary operator that must be associative

    returns

    the result of applying fold operator op between all the elements and z

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  56. def foldLeft[B](z: B)(op: (B, T) ⇒ B): B

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

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

    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 sequence, going left to right with the start value z on the left:

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

    where x1, ..., xn are the elements of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedTraversableOnceGenTraversableOnce
  57. def foldRight[B](z: B)(op: (T, B) ⇒ B): B

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

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

    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 sequence, going right to left with the start value z on the right:

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

    where x1, ..., xn are the elements of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableOnceGenTraversableOnce
  58. def forall(p: (T) ⇒ Boolean): Boolean

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

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

    p

    the predicate used to test elements.

    returns

    true if the given predicate p holds for all elements of this sequence, otherwise false.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
  59. def foreach(f: (A) ⇒ Unit): Unit

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

    [use case]

    Applies a function f to all elements of this sequence.

    Note: this method underlies the implementation of most other bulk operations. Subclasses should re-implement this method if a more efficient implementation exists.

    f

    the function that is applied for its side-effect to every element. The result of function f is discarded.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLikeTraversableOnceGenTraversableOnceFilterMonadic
    Full Signature

    def foreach[U](f: (T) ⇒ U): Unit

  60. 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 information
    This member is added by an implicit conversion from Array[T] to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  61. final def getClass(): Class[_]

    A representation that corresponds to the dynamic class of the receiver object.

    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.

    Definition Classes
    AnyRef → Any
    Note

    not specified by SLS as a member of AnyRef

  62. def groupBy[K](f: (T) ⇒ K): Map[K, Array[T]]

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

    Partitions this traversable collection into a map of traversable 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 traversable collection.

    K

    the type of keys returned by the discriminator function.

    f

    the discriminator function.

    returns

    A map from keys to traversable 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 traversable collection of those elements x for which f(x) equals k.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  63. def grouped(size: Int): Iterator[Array[T]]

    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.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IterableLike
    See also

    Iterator, method grouped

  64. def hasDefiniteSize: Boolean

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

    Tests whether this traversable 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.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeTraversableOnceGenTraversableOnce
  65. def hashCode(): Int

    The hashCode method for reference types.

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

    returns

    the hash code value for this object.

    Definition Classes
    AnyRef → Any
  66. def head: T

    Selects the first element of this sequence.

    Selects the first element of this sequence.

    returns

    the first element of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
    Exceptions thrown
    `NoSuchElementException`

    if the sequence is empty.

  67. def headOption: Option[T]

    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 traversable collection if it is nonempty, None if it is empty.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  68. def indexOf(elem: T, from: Int): Int

    [use case] Finds index of first occurrence of some value in this general sequence after or at some start index.

    [use case]

    Finds index of first occurrence of some value in this general sequence after or at some start index.

    Note: may not terminate for infinite-sized collections.

    elem

    the element value to search for.

    from

    the start index

    returns

    the index >= from of the first element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
    Full Signature

    def indexOf[B >: A](elem: B, from: Int): Int

  69. def indexOf(elem: T): Int

    [use case] Finds index of first occurrence of some value in this general sequence.

    [use case]

    Finds index of first occurrence of some value in this general sequence.

    Note: may not terminate for infinite-sized collections.

    elem

    the element value to search for.

    returns

    the index of the first element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
    Full Signature

    def indexOf[B >: A](elem: B): Int

  70. def indexOfSlice[B >: A](that: GenSeq[B], from: Int): Int

    Finds first index after or at a start index where this sequence contains a given sequence as a slice.

    Finds first index after or at a start index where this sequence contains a given sequence as a slice.

    Note: may not terminate for infinite-sized collections.

    that

    the sequence to test

    from

    the start index

    returns

    the first index >= from such that the elements of this sequence starting at this index match the elements of sequence that, or -1 of no such subsequence exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
  71. def indexOfSlice[B >: A](that: GenSeq[B]): Int

    Finds first index where this sequence contains a given sequence as a slice.

    Finds first index where this sequence contains a given sequence as a slice.

    Note: may not terminate for infinite-sized collections.

    that

    the sequence to test

    returns

    the first index such that the elements of this sequence starting at this index match the elements of sequence that, or -1 of no such subsequence exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
  72. def indexWhere(p: (T) ⇒ Boolean, from: Int): Int

    Finds index of the first element satisfying some predicate after or at some start index.

    Finds index of the first element satisfying some predicate after or at some start index.

    p

    the predicate used to test elements.

    from

    the start index

    returns

    the index >= from of the first element of this sequence that satisfies the predicate p, or -1, if none exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  73. def indexWhere(p: (T) ⇒ Boolean): Int

    Finds index of first element satisfying some predicate.

    Finds index of first element satisfying some predicate.

    Note: may not terminate for infinite-sized collections.

    p

    the predicate used to test elements.

    returns

    the index of the first element of this general sequence that satisfies the predicate p, or -1, if none exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
  74. def indices: Range

    Produces the range of all indices of this sequence.

    Produces the range of all indices of this sequence.

    returns

    a Range value from 0 to one less than the length of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
  75. def init: Array[T]

    Selects all elements except the last.

    Selects all elements except the last.

    returns

    a sequence consisting of all elements of this sequence except the last one.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
    Exceptions thrown
    `UnsupportedOperationException`

    if the sequence is empty.

  76. def inits: Iterator[Array[T]]

    Iterates over the inits of this traversable collection.

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

    returns

    an iterator over all the inits of this traversable collection

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLike
    Example:
    1. List(1,2,3).inits = Iterator(List(1,2,3), List(1,2), List(1), Nil)

  77. def intersect(that: Seq[T]): `Seq`[T]

    [use case] Computes the multiset intersection between this sequence and another sequence.

    [use case]

    Computes the multiset intersection between this sequence and another sequence.

    Note: may not terminate for infinite-sized collections.

    that

    the sequence of elements to intersect with.

    returns

    a new sequence which contains all elements of this sequence which also appear in that. If an element value x appears n times in that, then the first n occurrences of x will be retained in the result, but any following occurrences will be omitted.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def intersect[B >: A](that: GenSeq[B]): Array[T]

  78. def isDefinedAt(idx: Int): Boolean

    Tests whether this general sequence contains given index.

    Tests whether this general sequence contains given index.

    The implementations of methods apply and isDefinedAt turn a Seq[A] into a PartialFunction[Int, A].

    idx

    the index to test

    returns

    true if this general sequence contains an element at position idx, false otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
  79. def isEmpty: Boolean

    Tests whether this sequence is empty.

    Tests whether this sequence is empty.

    returns

    true if the sequence contain no elements, false otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
  80. 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
  81. final def isTraversableAgain: Boolean

    Tests whether this traversable collection can be repeatedly traversed.

    Tests whether this traversable collection can be repeatedly traversed.

    returns

    true

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLikeGenTraversableOnce
  82. def iterator: Iterator[T]

    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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqLikeIterableLikeGenIterableLike
  83. def last: T

    Selects the last element.

    Selects the last element.

    returns

    The last element of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
    Exceptions thrown
    NoSuchElementException

    If the sequence is empty.

  84. def lastIndexOf(elem: T, end: Int): Int

    [use case] Finds index of last occurrence of some value in this general sequence before or at a given end index.

    [use case]

    Finds index of last occurrence of some value in this general sequence before or at a given end index.

    elem

    the element value to search for.

    end

    the end index.

    returns

    the index <= end of the last element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
    Full Signature

    def lastIndexOf[B >: A](elem: B, end: Int): Int

  85. def lastIndexOf(elem: T): Int

    [use case] Finds index of last occurrence of some value in this general sequence.

    [use case]

    Finds index of last occurrence of some value in this general sequence.

    Note: will not terminate for infinite-sized collections.

    elem

    the element value to search for.

    returns

    the index of the last element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
    Full Signature

    def lastIndexOf[B >: A](elem: B): Int

  86. def lastIndexOfSlice[B >: A](that: GenSeq[B], end: Int): Int

    Finds last index before or at a given end index where this sequence contains a given sequence as a slice.

    Finds last index before or at a given end index where this sequence contains a given sequence as a slice.

    that

    the sequence to test

    end

    the end index

    returns

    the last index <= end such that the elements of this sequence starting at this index match the elements of sequence that, or -1 of no such subsequence exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
  87. def lastIndexOfSlice[B >: A](that: GenSeq[B]): Int

    Finds last index where this sequence contains a given sequence as a slice.

    Finds last index where this sequence contains a given sequence as a slice.

    Note: will not terminate for infinite-sized collections.

    that

    the sequence to test

    returns

    the last index such that the elements of this sequence starting a this index match the elements of sequence that, or -1 of no such subsequence exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
  88. def lastIndexWhere(p: (T) ⇒ Boolean, end: Int): Int

    Finds index of last element satisfying some predicate before or at given end index.

    Finds index of last element satisfying some predicate before or at given end index.

    p

    the predicate used to test elements.

    returns

    the index <= end of the last element of this sequence that satisfies the predicate p, or -1, if none exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  89. def lastIndexWhere(p: (T) ⇒ Boolean): Int

    Finds index of last element satisfying some predicate.

    Finds index of last element satisfying some predicate.

    Note: will not terminate for infinite-sized collections.

    p

    the predicate used to test elements.

    returns

    the index of the last element of this general sequence that satisfies the predicate p, or -1, if none exists.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
  90. def lastOption: Option[T]

    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 traversable collection$ if it is nonempty, None if it is empty.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  91. def length: Int

    The length of the array

  92. def lengthCompare(len: Int): Int

    Compares the length of this sequence to a test value.

    Compares the length of this sequence to a test value.

    len

    the test value that gets compared with the length.

    returns

    A value x where

    x <  0       if this.length <  len
    x == 0       if this.length == len
    x >  0       if this.length >  len

    The method as implemented here does not call length directly; its running time is O(length min len) instead of O(length). The method should be overwritten if computing length is cheap.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedSeqLike
  93. def map[B](f: (A) ⇒ B): Traversable[B]

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

    [use case]

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

    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLikeFilterMonadic
    Full Signature

    def map[B, That](f: (T) ⇒ B)(implicit bf: CanBuildFrom[Array[T], B, That]): That

  94. def max: A

    [use case] Finds the largest element.

    [use case]

    Finds the largest element.

    returns

    the largest element of this traversable or iterator.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
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    Full Signature

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

  95. def maxBy[B](f: (T) ⇒ B)(implicit cmp: Ordering[B]): T

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
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  96. def min: A

    [use case] Finds the smallest element.

    [use case]

    Finds the smallest element.

    returns

    the smallest element of this traversable or iterator

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

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

  97. def minBy[B](f: (T) ⇒ B)(implicit cmp: Ordering[B]): T

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
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  98. def mkString: String

    Displays all elements of this traversable or iterator in a string.

    Displays all elements of this traversable or iterator in a string.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  99. def mkString(sep: String): String

    Displays all elements of this traversable or iterator in a string using a separator string.

    Displays all elements of this traversable or iterator in a string using a separator string.

    sep

    the separator string.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
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    Example:
    1. List(1, 2, 3).mkString("|") = "1|2|3"

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

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

    Displays all elements of this traversable or iterator 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 traversable or iterator. 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 traversable or iterator are separated by the string sep.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
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    Example:
    1. List(1, 2, 3).mkString("(", "; ", ")") = "(1; 2; 3)"

  101. final def ne(arg0: AnyRef): Boolean

    Equivalent to !(this eq that).

    Equivalent to !(this eq that).

    returns

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

    Definition Classes
    AnyRef
  102. def nonEmpty: Boolean

    Tests whether the traversable or iterator is not empty.

    Tests whether the traversable or iterator is not empty.

    returns

    true if the traversable or iterator contains at least one element, false otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
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  103. final def notify(): Unit

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

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

    Definition Classes
    AnyRef
    Note

    not specified by SLS as a member of AnyRef

  104. final def notifyAll(): Unit

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

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

    Definition Classes
    AnyRef
    Note

    not specified by SLS as a member of AnyRef

  105. def padTo(len: Int, elem: A): `Seq`[A]

    [use case] A copy of this sequence with an element value appended until a given target length is reached.

    [use case]

    A copy of this sequence with an element value appended until a given target length is reached.

    len

    the target length

    elem

    the padding value

    returns

    a new sequence consisting of all elements of this sequence followed by the minimal number of occurrences of elem so that the resulting sequence has a length of at least len.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def padTo[B >: A, That](len: Int, elem: B)(implicit bf: CanBuildFrom[Array[T], B, That]): That

  106. def par: ParArray[T]

    Returns a parallel implementation of this collection.

    Returns a parallel implementation of this collection.

    For most collection types, this method creates a new parallel collection by copying all the elements. For these collection, par takes linear time. Mutable collections in this category do not produce a mutable parallel collection that has the same underlying dataset, so changes in one collection will not be reflected in the other one.

    Specific collections (e.g. ParArray or mutable.ParHashMap) override this default behaviour by creating a parallel collection which shares the same underlying dataset. For these collections, par takes constant or sublinear time.

    All parallel collections return a reference to themselves.

    returns

    a parallel implementation of this collection

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    ArrayOpsCustomParallelizableParallelizable
  107. def partition(p: (T) ⇒ Boolean): (Array[T], Array[T])

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

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

    p

    the predicate on which to partition.

    returns

    a pair of traversable collections: the first traversable collection consists of all elements that satisfy the predicate p and the second traversable collection consists of all elements that don't. The relative order of the elements in the resulting traversable collections is the same as in the original traversable collection.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  108. def patch(from: Int, that: GenSeq[A], replaced: Int): `Seq`[A]

    [use case] Produces a new sequence where a slice of elements in this sequence is replaced by another sequence.

    [use case]

    Produces a new sequence where a slice of elements in this sequence is replaced by another sequence.

    from

    the index of the first replaced element

    replaced

    the number of elements to drop in the original sequence

    returns

    a new sequence consisting of all elements of this sequence except that replaced elements starting from from are replaced by patch.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def patch[B >: A, That](from: Int, patch: GenSeq[B], replaced: Int)(implicit bf: CanBuildFrom[Array[T], B, That]): That

  109. def permutations: Iterator[Array[T]]

    Iterates over distinct permutations.

    Iterates over distinct permutations.

    returns

    An Iterator which traverses the distinct permutations of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
    Example:
    1. "abb".permutations = Iterator(abb, bab, bba)

  110. def prefixLength(p: (T) ⇒ Boolean): Int

    Returns the length of the longest prefix whose elements all satisfy some predicate.

    Returns the length of the longest prefix whose elements all satisfy some predicate.

    Note: may not terminate for infinite-sized collections.

    p

    the predicate used to test elements.

    returns

    the length of the longest prefix of this general sequence such that every element of the segment satisfies the predicate p.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
  111. def product: A

    [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 traversable or iterator 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 traversable or iterator and as result type of product. Examples of such types are: Long, Float, Double, BigInt.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def product[B >: A](implicit num: Numeric[B]): B

  112. def reduce[A1 >: A](op: (A1, A1) ⇒ A1): A1

    Reduces the elements of this traversable or iterator using the specified associative binary operator.

    Reduces the elements of this traversable or iterator using the specified associative binary operator.

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

    A1

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

    op

    A binary operator that must be associative.

    returns

    The result of applying reduce operator op between all the elements if the traversable or iterator is nonempty.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
    Exceptions thrown
    UnsupportedOperationException

    if this traversable or iterator is empty.

  113. def reduceLeft[B >: A](op: (B, T) ⇒ B): B

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedTraversableOnce
  114. def reduceLeftOption[B >: A](op: (B, T) ⇒ B): Option[B]

    Optionally applies a binary operator to all elements of this traversable or iterator, going left to right.

    Optionally applies a binary operator to all elements of this traversable or iterator, 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 traversable or iterator is nonempty, None otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  115. def reduceOption[A1 >: A](op: (A1, A1) ⇒ A1): Option[A1]

    Reduces the elements of this traversable or iterator, if any, using the specified associative binary operator.

    Reduces the elements of this traversable or iterator, if any, using the specified associative binary operator.

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

    A1

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

    op

    A binary operator that must be associative.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  116. def reduceRight[B >: A](op: (T, B) ⇒ B): B

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

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

    B

    the result type of the binary operator.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this sequence, going right to left:

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

    where x1, ..., xn are the elements of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableOnceGenTraversableOnce
    Exceptions thrown
    `UnsupportedOperationException`

    if this sequence is empty.

  117. def reduceRightOption[B >: A](op: (T, B) ⇒ B): Option[B]

    Optionally applies a binary operator to all elements of this traversable or iterator, going right to left.

    Optionally applies a binary operator to all elements of this traversable or iterator, 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 traversable or iterator is nonempty, None otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  118. def repr: Array[T]

    The collection of type traversable collection underlying this TraversableLike object.

    The collection of type traversable collection underlying this TraversableLike object. By default this is implemented as the TraversableLike object itself, but this can be overridden.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
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  119. def reverse: Array[T]

    Returns new sequence wih elements in reversed order.

    Returns new sequence wih elements in reversed order.

    returns

    A new sequence with all elements of this sequence in reversed order.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  120. def reverseIterator: Iterator[T]

    An iterator yielding elements in reversed order.

    An iterator yielding elements in reversed order.

    Note: xs.reverseIterator is the same as xs.reverse.iterator but might be more efficient.

    returns

    an iterator yielding the elements of this sequence in reversed order

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedSeqLike
  121. def reverseMap[B](f: (A) ⇒ B): `Seq`[B]

    [use case] Builds a new collection by applying a function to all elements of this sequence and collecting the results in reversed order.

    [use case]

    Builds a new collection by applying a function to all elements of this sequence and collecting the results in reversed order.

    Note: will not terminate for infinite-sized collections.

    Note: xs.reverseMap(f) is the same as xs.reverse.map(f) but might be more efficient.

    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

    a new sequence resulting from applying the given function f to each element of this sequence and collecting the results in reversed order.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def reverseMap[B, That](f: (T) ⇒ B)(implicit bf: CanBuildFrom[Array[T], B, That]): That

  122. def sameElements(that: GenIterable[A]): Boolean

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

    [use case]

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

    that

    the collection to compare with.

    returns

    true, if both collections contain the same elements in the same order, false otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeGenIterableLike
    Full Signature

    def sameElements[B >: A](that: GenIterable[B]): Boolean

  123. def scan[B >: A, That](z: B)(op: (B, B) ⇒ B)(implicit cbf: CanBuildFrom[Array[T], B, That]): That

    Computes a prefix scan of the elements of the collection.

    Computes a prefix scan of the elements of the collection.

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

    B

    element type of the resulting collection

    That

    type of the resulting collection

    z

    neutral element for the operator op

    op

    the associative operator for the scan

    cbf

    combiner factory which provides a combiner

    returns

    a new traversable collection containing the prefix scan of the elements in this traversable collection

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  124. def scanLeft[B, That](z: B)(op: (B, T) ⇒ B)(implicit bf: CanBuildFrom[Array[T], B, That]): That

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

    Produces a collection containing cumulative 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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  125. def scanRight[B, That](z: B)(op: (T, B) ⇒ B)(implicit bf: CanBuildFrom[Array[T], B, That]): That

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

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

    Note: will not terminate for infinite-sized collections.

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

    Example:

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
    Annotations
    @migration
    Migration

    (Changed in version 2.9.0) The behavior of scanRight has changed. The previous behavior can be reproduced with scanRight.reverse.

  126. def segmentLength(p: (T) ⇒ Boolean, from: Int): Int

    Computes length of longest segment whose elements all satisfy some predicate.

    Computes length of longest segment whose elements all satisfy some predicate.

    p

    the predicate used to test elements.

    from

    the index where the search starts.

    returns

    the length of the longest segment of this sequence starting from index from such that every element of the segment satisfies the predicate p.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  127. def seq: IndexedSeq[T]

    A version of this collection with all of the operations implemented sequentially (i.

    A version of this collection with all of the operations implemented sequentially (i.e. in a single-threaded manner).

    This method returns a reference to this collection. In parallel collections, it is redefined to return a sequential implementation of this collection. In both cases, it has O(1) complexity.

    returns

    a sequential view of the collection.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    ArrayOpsIndexedSeqLikeGenSeqLikeParallelizableTraversableOnceGenTraversableOnce
  128. def size: Int

    The size of this sequence, equivalent to length.

    The size of this sequence, equivalent to length.

    Note: will not terminate for infinite-sized collections.

    returns

    the number of elements in this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenTraversableLikeTraversableOnceGenTraversableOnce
  129. def slice(from: Int, until: Int): Array[T]

    Selects an interval of elements.

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

    from <= indexOf(x) < until
    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
  130. def sliding(size: Int, step: Int): Iterator[Array[T]]

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

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

    size

    the number of elements per group

    step

    the distance between the first elements of successive groups (defaults to 1)

    returns

    An iterator producing iterable collections of size size, except the last and the only element will be truncated if there are fewer elements than size.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IterableLike
    See also

    Iterator, method sliding

  131. def sliding(size: Int): Iterator[Array[T]]

    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 and the only element will be truncated if there are fewer elements than size.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IterableLike
    See also

    Iterator, method sliding

  132. def sortBy[B](f: (T) ⇒ B)(implicit ord: Ordering[B]): Array[T]

    Sorts this Seq according to the Ordering which results from transforming an implicitly given Ordering with a transformation function.

    Sorts this Seq according to the Ordering which results from transforming an implicitly given Ordering with a transformation function.

    B

    the target type of the transformation f, and the type where the ordering ord is defined.

    f

    the transformation function mapping elements to some other domain B.

    ord

    the ordering assumed on domain B.

    returns

    a sequence consisting of the elements of this sequence sorted according to the ordering where x < y if ord.lt(f(x), f(y)).

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
    Example:
    1. val words = "The quick brown fox jumped over the lazy dog".split(' ')
      // this works because scala.Ordering will implicitly provide an Ordering[Tuple2[Int, Char]]
      words.sortBy(x => (x.length, x.head))
      res0: Array[String] = Array(The, dog, fox, the, lazy, over, brown, quick, jumped)
    See also

    Ordering

    Note: will not terminate for infinite-sized collections.

  133. def sortWith(lt: (T, T) ⇒ Boolean): Array[T]

    Sorts this sequence according to a comparison function.

    Sorts this sequence according to a comparison function.

    Note: will not terminate for infinite-sized collections.

    The sort is stable. That is, elements that are equal (as determined by lt) appear in the same order in the sorted sequence as in the original.

    lt

    the comparison function which tests whether its first argument precedes its second argument in the desired ordering.

    returns

    a sequence consisting of the elements of this sequence sorted according to the comparison function lt.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
    Example:
    1. List("Steve", "Tom", "John", "Bob").sortWith(_.compareTo(_) < 0) =
      List("Bob", "John", "Steve", "Tom")
  134. def sorted[B >: A](implicit ord: Ordering[B]): Array[T]

    Sorts this sequence according to an Ordering.

    Sorts this sequence according to an Ordering.

    The sort is stable. That is, elements that are equal (as determined by lt) appear in the same order in the sorted sequence as in the original.

    ord

    the ordering to be used to compare elements.

    returns

    a sequence consisting of the elements of this sequence sorted according to the ordering ord.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLike
    See also

    Ordering

  135. def span(p: (T) ⇒ Boolean): (Array[T], Array[T])

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

    Splits this sequence 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.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
  136. def splitAt(n: Int): (Array[T], Array[T])

    Splits this sequence into two at a given position.

    Splits this sequence into two at a given position. Note: c splitAt n is equivalent to (but possibly more efficient than) (c take n, c drop n).

    n

    the position at which to split.

    returns

    a pair of sequences consisting of the first n elements of this sequence, and the other elements.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
  137. def startsWith[B](that: GenSeq[B], offset: Int): Boolean

    Tests whether this sequence contains the given sequence at a given index.

    Tests whether this sequence contains the given sequence at a given index.

    Note: If the both the receiver object this and the argument that are infinite sequences this method may not terminate.

    that

    the sequence to test

    offset

    the index where the sequence is searched.

    returns

    true if the sequence that is contained in this sequence at index offset, otherwise false.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  138. def startsWith[B](that: GenSeq[B]): Boolean

    Tests whether this general sequence starts with the given sequence.

    Tests whether this general sequence starts with the given sequence.

    that

    the sequence to test

    returns

    true if this collection has that as a prefix, false otherwise.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenSeqLike
  139. 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 traversable collection. By default the string prefix is the simple name of the collection class traversable collection.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeGenTraversableLike
  140. def subSequence(arg0: Int, arg1: Int): CharSequence

    Implicit information
    This member is added by an implicit conversion from Array[T] to CharSequence performed by method arrayToCharSequence in scala.Predef. This conversion will take place only if T is Char (T =:= Char).
    Definition Classes
    CharSequence
  141. def sum: A

    [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 traversable or iterator 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 traversable or iterator and as result type of sum. Examples of such types are: Long, Float, Double, BigInt.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def sum[B >: A](implicit num: Numeric[B]): B

  142. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  143. def tail: Array[T]

    Selects all elements except the first.

    Selects all elements except the first.

    returns

    a sequence consisting of all elements of this sequence except the first one.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
    Exceptions thrown
    `UnsupportedOperationException`

    if the sequence is empty.

  144. def tails: Iterator[Array[T]]

    Iterates over the tails of this traversable collection.

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

    returns

    an iterator over all the tails of this traversable collection

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLike
    Example:
    1. List(1,2,3).tails = Iterator(List(1,2,3), List(2,3), List(3), Nil)

  145. def take(n: Int): Array[T]

    Selects first n elements.

    Selects first n elements.

    n

    Tt number of elements to take from this sequence.

    returns

    a sequence consisting only of the first n elements of this sequence, or else the whole sequence, if it has less than n elements.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
  146. def takeRight(n: Int): Array[T]

    Selects last n elements.

    Selects last n elements.

    n

    the number of elements to take

    returns

    a sequence consisting only of the last n elements of this sequence, or else the whole sequence, if it has less than n elements.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLike
  147. def takeWhile(p: (T) ⇒ Boolean): Array[T]

    Takes longest prefix of elements that satisfy a predicate.

    Takes longest prefix of elements that satisfy a predicate.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
  148. def to[Col[_]]: Col[A]

    [use case] Converts this traversable collection into another by copying all elements.

    [use case]

    Converts this traversable collection into another by copying all elements.

    Note: will not terminate for infinite-sized collections.

    Col

    The collection type to build.

    returns

    a new collection containing all elements of this traversable collection.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeTraversableOnceGenTraversableOnce
    Full Signature

    def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, T, Col[T]]): Col[T]

  149. def toArray: Array[A]

    [use case] Converts this mutable indexed sequence to an array.

    [use case]

    Converts this mutable indexed sequence to an array.

    returns

    an array containing all elements of this mutable indexed sequence. An ClassTag must be available for the element type of this mutable indexed sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    ArrayOpsTraversableOnceGenTraversableOnce
    Full Signature

    def toArray[U >: T](implicit arg0: ClassTag[U]): Array[U]

  150. def toBuffer[A1 >: A]: Buffer[A1]

    Overridden for efficiency

    Overridden for efficiency

    returns

    a buffer containing all elements of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqLikeTraversableOnceGenTraversableOnce
  151. def toIndexedSeq: IndexedSeq[T]

    Converts this traversable or iterator to an indexed sequence.

    Converts this traversable or iterator to an indexed sequence.

    Note: will not terminate for infinite-sized collections.

    returns

    an indexed sequence containing all elements of this traversable or iterator.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  152. def toIterable: Iterable[T]

    Converts this iterable collection to an iterable collection.

    Converts this iterable collection to an iterable collection. Note that the choice of target Iterable is lazy in this default implementation as this TraversableOnce may be lazy and unevaluated (i.e. it may be an iterator which is only traversable once).

    Note: will not terminate for infinite-sized collections.

    returns

    an Iterable containing all elements of this iterable collection.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IterableLikeTraversableOnceGenTraversableOnce
  153. def toIterator: Iterator[T]

    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.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IterableLikeTraversableLikeGenTraversableOnce
  154. def toList: List[T]

    Converts this traversable or iterator to a list.

    Converts this traversable or iterator to a list.

    Note: will not terminate for infinite-sized collections.

    returns

    a list containing all elements of this traversable or iterator.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  155. def toMap[T, U]: Map[T, U]

    [use case] Converts this traversable or iterator to a map.

    [use case]

    Converts this traversable or iterator to a map. This method is unavailable unless the elements are members of Tuple2, each ((T, U)) 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 of type immutable.Map[T, U] containing all key/value pairs of type (T, U) of this traversable or iterator.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def toMap[T, U](implicit ev: <:<[T, (T, U)]): Map[T, U]

  156. def toSeq: Seq[T]

    Converts this sequence to a sequence.

    Converts this sequence to a sequence.

    Note: will not terminate for infinite-sized collections.

    Overridden for efficiency.

    returns

    a sequence containing all elements of this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLikeTraversableOnceGenTraversableOnce
  157. def toSet[B >: A]: Set[B]

    Converts this traversable or iterator to a set.

    Converts this traversable or iterator to a set.

    Note: will not terminate for infinite-sized collections.

    returns

    a set containing all elements of this traversable or iterator.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  158. def toStream: Stream[T]

    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.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IterableLikeTraversableLikeGenTraversableOnce
  159. def toString(): String

    Creates a String representation of this object.

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

    returns

    a String representation of the object.

    Definition Classes
    AnyRef → Any
  160. def toTraversable: Traversable[T]

    Converts this traversable collection to an unspecified Traversable.

    Converts this traversable 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 traversable collection.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeTraversableOnceGenTraversableOnce
  161. def toVector: Vector[T]

    Converts this traversable or iterator to a Vector.

    Converts this traversable or iterator to a Vector.

    Note: will not terminate for infinite-sized collections.

    returns

    a vector containing all elements of this traversable or iterator.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableOnceGenTraversableOnce
  162. def transpose[U](implicit asArray: (T) ⇒ Array[U]): Array[Array[U]]

    Transposes a two dimensional array.

    Transposes a two dimensional array.

    U

    Type of row elements.

    asArray

    A function that converts elements of this array to rows - arrays of type U.

    returns

    An array obtained by replacing elements of this arrays with rows the represent.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    ArrayOps
  163. def union(that: Seq[T]): `Seq`[T]

    [use case] Produces a new sequence which contains all elements of this sequence and also all elements of a given sequence.

    [use case]

    Produces a new sequence which contains all elements of this sequence and also all elements of a given sequence. xs union ys is equivalent to xs ++ ys.

    Another way to express this is that xs union ys computes the order-presevring multi-set union of xs and ys. union is hence a counter-part of diff and intersect which also work on multi-sets.

    Note: will not terminate for infinite-sized collections.

    that

    the sequence to add.

    returns

    a new sequence which contains all elements of this sequence followed by all elements of that.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def union[B >: A, That](that: GenSeq[B])(implicit bf: CanBuildFrom[Array[T], B, That]): That

  164. def update(i: Int, x: T): Unit

    Update the element at given index.

    Update the element at given index.

    Indices start at 0; xs.update(i, x) replaces the ith element in the array. Note the syntax xs(i) = x is a shorthand for xs.update(i, x).

    i

    the index

    x

    the value to be written at index i

    Exceptions thrown
    ArrayIndexOutOfBoundsException

    if i < 0 or length <= i

  165. def updated(index: Int, elem: A): `Seq`[A]

    [use case] A copy of this sequence with one single replaced element.

    [use case]

    A copy of this sequence with one single replaced element.

    index

    the position of the replacement

    elem

    the replacing element

    returns

    a copy of this sequence with the element at position index replaced by elem.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def updated[B >: A, That](index: Int, elem: B)(implicit bf: CanBuildFrom[Array[T], B, That]): That

  166. def view(from: Int, until: Int): IndexedSeqView[T, Array[T]]

    A sub-sequence view starting at index from and extending up to (but not including) index until.

    A sub-sequence view starting at index from and extending up to (but not including) index until.

    from

    The index of the first element of the slice

    until

    The index of the element following the slice

    returns

    a non-strict view of a slice of this mutable indexed sequence, starting at index from and extending up to (but not including) index until.@note The difference between view and slice is that view produces a view of the current sequence, whereas slice produces a new sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqLikeSeqLikeIterableLikeTraversableLike
    Note

    view(from, to) is equivalent to view.slice(from, to)

  167. def view: IndexedSeqView[T, Array[T]]

    Creates a view of this iterable @see Iterable.

    Creates a view of this iterable @see Iterable.View

    returns

    a non-strict view of this mutable indexed sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqLikeSeqLikeIterableLikeTraversableLike
  168. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  169. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  170. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  171. def withFilter(p: (T) ⇒ Boolean): FilterMonadic[T, Array[T]]

    Creates a non-strict filter of this traversable collection.

    Creates a non-strict filter of this traversable 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 traversable collection which satisfy the predicate p.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    TraversableLikeFilterMonadic
  172. def zip[B](that: GenIterable[B]): IndexedSeq[(A, B)]

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

    [use case]

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeGenIterableLike
    Full Signature

    def zip[A1 >: A, B, That](that: GenIterable[B])(implicit bf: CanBuildFrom[Array[T], (A1, B), That]): That

  173. 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.

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

    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.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IterableLikeGenIterableLike
    Full Signature

    def zipAll[B, A1 >: A, That](that: GenIterable[B], thisElem: A1, thatElem: B)(implicit bf: CanBuildFrom[Array[T], (A1, B), That]): That

  174. def zipWithIndex: IndexedSeq[(A, Int)]

    [use case] Zips this sequence with its indices.

    [use case]

    Zips this sequence with its indices.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    IndexedSeqOptimizedIterableLikeGenIterableLike
    Full Signature

    def zipWithIndex[A1 >: A, That](implicit bf: CanBuildFrom[Array[T], (A1, Int), That]): That

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

  175. def [B](y: B): (Array[T], B)

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrowAssoc[Array[T]] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implict Value Members

  1. def apply(idx: Int): T

    Selects an element by its index in the sequence.

    Selects an element by its index in the sequence.

    Example:

    scala> val x = LinkedList(1, 2, 3, 4, 5)
    x: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4, 5)
    
    scala> x(3)
    res1: Int = 4
    idx

    The index to select.

    returns

    the element of this sequence at index idx, where 0 indicates the first element.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
    To access this member you can use a type ascription:
    (array: ArrayOps[T]).apply(idx)
    Definition Classes
    SeqLikeGenSeqLike
    Exceptions thrown
    `IndexOutOfBoundsException`

    if idx does not satisfy 0 <= idx < length.

  2. def equals(that: Any): Boolean

    The equals method for arbitrary sequences.

    The equals method for arbitrary sequences. Compares this sequence to some other object.

    that

    The object to compare the sequence to

    returns

    true if that is a sequence that has the same elements as this sequence in the same order, false otherwise

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
    To access this member you can use a type ascription:
    (array: ArrayOps[T]).equals(that)
    Definition Classes
    GenSeqLikeEqualsAny
  3. def hashCode(): Int

    Hashcodes for IndexedSeq produce a value from the hashcodes of all the elements of the sequence.

    Hashcodes for IndexedSeq produce a value from the hashcodes of all the elements of the sequence.

    returns

    the hash code value for this object.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
    To access this member you can use a type ascription:
    (array: ArrayOps[T]).hashCode()
    Definition Classes
    IndexedSeqLikeGenSeqLikeAny
  4. def length: Int

    The length of the sequence.

    The length of the sequence.

    Note: will not terminate for infinite-sized collections.

    Note: xs.length and xs.size yield the same result.

    returns

    the number of elements in this sequence.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
    To access this member you can use a type ascription:
    (array: ArrayOps[T]).length
    Definition Classes
    SeqLikeGenSeqLike
  5. def length(): Int

    Implicit information
    This member is added by an implicit conversion from Array[T] to CharSequence performed by method arrayToCharSequence in scala.Predef. This conversion will take place only if T is Char (T =:= Char).
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
    To access this member you can use a type ascription:
    (array: CharSequence).length()
    Definition Classes
    CharSequence
  6. val self: Any

    Implicit information
    This member is added by an implicit conversion from Array[T] to StringAdd performed by method any2stringadd in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (array: StringAdd).self
    Definition Classes
    StringAdd
  7. val self: Any

    Implicit information
    This member is added by an implicit conversion from Array[T] to StringFormat performed by method any2stringfmt in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (array: StringFormat).self
    Definition Classes
    StringFormat
  8. def toString(): String

    Converts this sequence to a string.

    Converts this sequence to a string.

    returns

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

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
    To access this member you can use a type ascription:
    (array: ArrayOps[T]).toString()
    Definition Classes
    SeqLikeTraversableLikeAny
  9. def update(idx: Int, elem: T): Unit

    Replaces element at given index with a new value.

    Replaces element at given index with a new value.

    idx

    the index of the element to replace.

    elem

    the new value.

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
    To access this member you can use a type ascription:
    (array: ArrayOps[T]).update(idx, elem)
    Definition Classes
    IndexedSeqLike
    Exceptions thrown
    IndexOutOfBoundsException

    if the index is not valid.

Deprecated Value Members

  1. def /:\[A1 >: A](z: A1)(op: (A1, A1) ⇒ A1): A1

    A syntactic sugar for out of order folding.

    A syntactic sugar for out of order folding. See fold.

    Example:

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = (a /:\ 5)(_+_)
    b: Int = 15
    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrayOps[T] performed by method genericArrayOps in scala.Predef.
    Definition Classes
    GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) use fold instead

  2. def x: Array[T]

    Implicit information
    This member is added by an implicit conversion from Array[T] to ArrowAssoc[Array[T]] performed by method any2ArrowAssoc in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (array: ArrowAssoc[Array[T]]).x
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  3. def x: Array[T]

    Implicit information
    This member is added by an implicit conversion from Array[T] to Ensuring[Array[T]] performed by method any2Ensuring in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (array: Ensuring[Array[T]]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from Cloneable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion genericArrayOps from Array[T] to ArrayOps[T]

Inherited by implicit conversion arrayToCharSequence from Array[T] to CharSequence

Inherited by implicit conversion any2stringadd from Array[T] to StringAdd

Inherited by implicit conversion any2stringfmt from Array[T] to StringFormat

Inherited by implicit conversion any2ArrowAssoc from Array[T] to ArrowAssoc[Array[T]]

Inherited by implicit conversion any2Ensuring from Array[T] to Ensuring[Array[T]]