Packages

object List extends StrictOptimizedSeqFactory[List]

This object provides a set of operations to create List values.

Annotations
@SerialVersionUID()
Source
List.scala
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Inherited
  1. List
  2. StrictOptimizedSeqFactory
  3. SeqFactory
  4. IterableFactory
  5. Serializable
  6. AnyRef
  7. Any
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Visibility
  1. Public
  2. Protected

Value Members

  1. def apply[A](elems: A*): List[A]

    Creates a list with the specified elements.

    Creates a list with the specified elements.

    A

    the type of the list's elements

    elems

    the elements of the created list

    returns

    a new list with elements elems

    Definition Classes
    IterableFactory
  2. def concat[A](xss: collection.Iterable[A]*): List[A]

    Concatenates all argument collections into a single list.

    Concatenates all argument collections into a single list.

    xss

    the collections that are to be concatenated.

    returns

    the concatenation of all the collections.

    Definition Classes
    StrictOptimizedSeqFactoryIterableFactory
  3. def empty[A]: List[A]

    An empty collection

    An empty collection

    A

    the type of the list's elements

    Definition Classes
    ListIterableFactory
  4. def fill[A](n: Int)(elem: => A): List[A]

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

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

    n

    the number of elements contained in the list.

    elem

    the element computation

    returns

    A list that contains the results of n evaluations of elem.

    Definition Classes
    StrictOptimizedSeqFactoryIterableFactory
  5. def fill[A](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(elem: => A): List[List[List[List[List[A]]]]]

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

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

    n1

    the number of elements in the 1st dimension

    n2

    the number of elements in the 2nd dimension

    n3

    the number of elements in the 3rd dimension

    n4

    the number of elements in the 4th dimension

    n5

    the number of elements in the 5th dimension

    elem

    the element computation

    returns

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

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

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

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

    n1

    the number of elements in the 1st dimension

    n2

    the number of elements in the 2nd dimension

    n3

    the number of elements in the 3rd dimension

    n4

    the number of elements in the 4th dimension

    elem

    the element computation

    returns

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

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

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

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

    n1

    the number of elements in the 1st dimension

    n2

    the number of elements in the 2nd dimension

    n3

    the number of elements in the 3rd dimension

    elem

    the element computation

    returns

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

    Definition Classes
    IterableFactory
  8. def fill[A](n1: Int, n2: Int)(elem: => A): List[List[A]]

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

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

    n1

    the number of elements in the 1st dimension

    n2

    the number of elements in the 2nd dimension

    elem

    the element computation

    returns

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

    Definition Classes
    IterableFactory
  9. def from[B](coll: IterableOnce[B]): List[B]

    Creates a target list from an existing source collection

    Creates a target list from an existing source collection

    returns

    a new list with the elements of source

    Definition Classes
    ListIterableFactory
  10. implicit def iterableFactory[A]: Factory[A, List[A]]
    Definition Classes
    IterableFactory
  11. def iterate[A](start: A, len: Int)(f: (A) => A): List[A]

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

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

    start

    the start value of the list

    len

    the number of elements contained in the list

    f

    the function that's repeatedly applied

    returns

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

    Definition Classes
    IterableFactory
  12. def newBuilder[A]: Builder[A, List[A]]

    A

    the type of the list’s elements

    returns

    A builder for List objects.

    Definition Classes
    ListIterableFactory
  13. def range[A](start: A, end: A, step: A)(implicit arg0: Integral[A]): List[A]

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

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

    start

    the start value of the list

    end

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

    step

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

    returns

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

    Definition Classes
    IterableFactory
  14. def range[A](start: A, end: A)(implicit arg0: Integral[A]): List[A]

    Produces a list containing a sequence of increasing of integers.

    Produces a list containing a sequence of increasing of integers.

    start

    the first element of the list

    end

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

    returns

    a list with values start, start + 1, ..., end - 1

    Definition Classes
    IterableFactory
  15. def tabulate[A](n: Int)(f: (Int) => A): List[A]

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

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

    n

    The number of elements in the list

    f

    The function computing element values

    returns

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

    Definition Classes
    StrictOptimizedSeqFactoryIterableFactory
  16. def tabulate[A](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(f: (Int, Int, Int, Int, Int) => A): List[List[List[List[List[A]]]]]

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

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

    n1

    the number of elements in the 1st dimension

    n2

    the number of elements in the 2nd dimension

    n3

    the number of elements in the 3rd dimension

    n4

    the number of elements in the 4th dimension

    n5

    the number of elements in the 5th dimension

    f

    The function computing element values

    returns

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

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

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

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

    n1

    the number of elements in the 1st dimension

    n2

    the number of elements in the 2nd dimension

    n3

    the number of elements in the 3rd dimension

    n4

    the number of elements in the 4th dimension

    f

    The function computing element values

    returns

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

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

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

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

    n1

    the number of elements in the 1st dimension

    n2

    the number of elements in the 2nd dimension

    n3

    the number of elements in the 3rd dimension

    f

    The function computing element values

    returns

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

    Definition Classes
    IterableFactory
  19. def tabulate[A](n1: Int, n2: Int)(f: (Int, Int) => A): List[List[A]]

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

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

    n1

    the number of elements in the 1st dimension

    n2

    the number of elements in the 2nd dimension

    f

    The function computing element values

    returns

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

    Definition Classes
    IterableFactory
  20. final def unapplySeq[A](x: List[A]): UnapplySeqWrapper[A]
    Definition Classes
    SeqFactory
  21. def unfold[A, S](init: S)(f: (S) => Option[(A, S)]): List[A]

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

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

    A

    Type of the elements

    S

    Type of the internal state

    init

    State initial value

    f

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

    returns

    a list that produces elements using f until f returns None

    Definition Classes
    IterableFactory