The underlying collection type with unknown element type
The underlying collection type with unknown element type
A generic implementation of the CanBuildFrom
trait, which forwards
all calls to apply(from)
to the genericBuilder
method of
collection from
, and which forwards all calls of apply()
to the
newBuilder
method of this factory.
Test two objects for inequality.
Test two objects for inequality.
true
if !(this == that), false otherwise.
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
.
a hash value consistent with ==
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)
.
true
if the receiver object is equivalent to the argument; false
otherwise.
Creates a list with the specified elements.
Creates a list with the specified elements.
the type of the list's elements
a new list with elements elems
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.
the receiver object.
if the receiver object is not an instance of the erasure of type T0
.
The standard CanBuildFrom
instance for List
objects.
The standard CanBuildFrom
instance for List
objects.
The created value is an instance of class GenericCanBuildFrom
,
which forwards calls to create a new builder to the
genericBuilder
method of the requesting collection.
Create a copy of the receiver object.
Concatenates all argument collections into a single list.
Concatenates all argument collections into a single list.
the collections that are to be concatenated.
the concatenation of all the collections.
An empty collection of type List
[A]
An empty collection of type List
[A]
the type of the list's elements
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:
x
and y
of type AnyRef
, multiple invocations of
x.eq(y)
consistently returns true
or consistently returns false
.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
).
true
if the argument is a reference to the receiver object; false
otherwise.
The equality method for reference types.
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.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the number of elements in the 4th dimension
the number of elements in the 5th dimension
the element computation
A list that contains the results of n1 x n2 x n3 x n4 x n5
evaluations of elem
.
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.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the number of elements in the 4th dimension
the element computation
A list that contains the results of n1 x n2 x n3 x n4
evaluations of elem
.
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.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the element computation
A list that contains the results of n1 x n2 x n3
evaluations of elem
.
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.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the element computation
A list that contains the results of n1 x n2
evaluations of elem
.
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.
the number of elements contained in the list.
the element computation
A list that contains the results of n
evaluations of elem
.
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.
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.
a representation that corresponds to the dynamic class of the receiver object.
not specified by SLS as a member of AnyRef
The hashCode method for reference types.
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.
true
if the receiver object is an instance of erasure of type T0
; false
otherwise.
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.
the start value of the list
the number of elements contained inthe list
the function that's repeatedly applied
a list with len
values in the sequence start, f(start), f(f(start)), ...
Equivalent to !(this eq that)
.
Equivalent to !(this eq that)
.
true
if the argument is not a reference to the receiver object; false
otherwise.
The default builder for
objects.List
The default builder for
objects.List
the type of the list's elements
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.
not specified by SLS as a member of AnyRef
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.
not specified by SLS as a member of AnyRef
Produces a list containing equally spaced values in some integer interval.
Produces a list containing equally spaced values in some integer interval.
the start value of the list
the end value of the list (the first value NOT contained)
the difference between successive elements of the list (must be positive or negative)
a list with values start, start + step, ...
up to, but excluding end
Produces a list containing a sequence of increasing of integers.
Produces a list containing a sequence of increasing of integers.
the first element of the list
the end value of the list (the first value NOT contained)
a list with values start, start + 1, ..., end - 1
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.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the number of elements in the 4th dimension
the number of elements in the 5th dimension
The function computing element values
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
.
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.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the number of elements in the 4th dimension
The function computing element values
A list consisting of elements f(i1, i2, i3, i4)
for 0 <= i1 < n1
, 0 <= i2 < n2
, 0 <= i3 < n3
, and 0 <= i4 < n4
.
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.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
The function computing element values
A list consisting of elements f(i1, i2, i3)
for 0 <= i1 < n1
, 0 <= i2 < n2
, and 0 <= i3 < n3
.
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.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
The function computing element values
A list consisting of elements f(i1, i2)
for 0 <= i1 < n1
and 0 <= i2 < n2
.
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.
The number of elements in the list
The function computing element values
A list consisting of elements f(0), ..., f(n -1)
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.
a String representation of the object.
This method is called in a pattern match { case Seq(.
This method is called in a pattern match { case Seq(...) => }.
the selector value
sequence wrapped in an option, if this is a Seq, otherwise none
Tests whether the given predicate p
holds
for some corresponding elements of the argument lists.
Tests whether the given predicate p
holds
for some corresponding elements of the argument lists.
function to apply to each pair of elements.
n != 0 && (p(a_{0},b_{0}) ||
... || p(a_{n},b_{n}))]
if the lists are
[a_{0}, ..., a_{k}]
,
[b_{0}, ..., b_{l}]
and
n = min(k,l)
(Since version 2.8.0) use (xs, ys).zipped.exists(f)
instead of List.exists2(xs, ys)(f)
Concatenate all the elements of a given list of lists.
Concatenate all the elements of a given list of lists.
the list of lists that are to be concatenated
the concatenation of all the lists
(Since version 2.8.0) use xss.flatten
instead of List.flatten(xss)
Tests whether the given predicate p
holds
for all corresponding elements of the argument lists.
Tests whether the given predicate p
holds
for all corresponding elements of the argument lists.
function to apply to each pair of elements.
(p(a_{0},b_{0}) &&
... && p(a_{n},b_{n}))]
if the lists are [a_{0}, ..., a_{k}]
;
[b_{0}, ..., b_{l}]
and n = min(k,l)
(Since version 2.8.0) use (xs, ys).zipped.forall(f)
instead of List.forall2(xs, ys)(f)
Converts a range of an array into a list.
Converts a range of an array into a list.
the array to convert
the first index to consider
the length of the range to convert
a list that contains the same elements than arr
in the same order
(Since version 2.8.0) use array.view(start, end).toList
instead of List.fromArray(array, start, end)
Converts an array into a list.
Converts an array into a list.
the array to convert
a list that contains the same elements than arr
in the same order
(Since version 2.8.0) use array.toList
instead of List.fromArray(array)
Converts an iterator to a list.
Converts an iterator to a list.
the iterator to convert
a list that contains the elements returned by successive
calls to it.next
(Since version 2.8.0) use it.toList
instead of List.toList(it)
Returns the Left
values in the given Iterable
of Either
s.
Returns the Left
values in the given Iterable
of Either
s.
(Since version 2.8.0) use xs collect { case Left(x: A) => x }
instead of List.lefts(xs)
Create a list containing several copies of an element.
Create a list containing several copies of an element.
the length of the resulting list
the element composing the resulting list
a list composed of n
elements all equal to elem
(Since version 2.8.0) use fill
instead
Returns the list resulting from applying the given function f
to corresponding elements of the argument lists.
Returns the list resulting from applying the given function f
to corresponding elements of the argument lists.
function to apply to each pair of elements.
[f(a_{0},b_{0}), ..., f(a_{n},b_{n})]
if the lists are
[a_{0}, ..., a_{k}]
, [b_{0}, ..., b_{l}]
and
n = min(k,l)
(Since version 2.8.0) use (xs, ys).zipped.map(f)
instead of List.map2(xs, ys)(f)
Create a sorted list with element values v_{>n+1} = step(v_{n})
where v_{0} = start
and elements are in the range between start
(inclusive) and end
(exclusive).
Create a sorted list with element values v_{>n+1} = step(v_{n})
where v_{0} = start
and elements are in the range between start
(inclusive) and end
(exclusive).
the start value of the list
the end value of the list
the increment function of the list, which given v_{n}
,
computes v_{n+1}
. Must be monotonically increasing
or decreasing.
the sorted list of all integers in range [start;end)
.
(Since version 2.8.0) use iterate
instead
Returns the Right
values in the given Iterable
of Either
s.
Returns the Right
values in the given Iterable
of Either
s.
(Since version 2.8.0) use xs collect { case Right(x: B) => x }
instead of List.rights(xs)
Transforms an Iterable of Eithers into a pair of lists.
Transforms an Iterable of Eithers into a pair of lists.
the iterable of Eithers to separate
a pair of lists.
(Since version 2.8.0) use (for (Left(x) <- es) yield x, for (Right(x) <- es) yield x)
instead
Transposes a list of lists.
Transposes a list of lists. pre: All element lists have the same length.
the list of lists
the transposed list of lists
(Since version 2.8.0) use xss.transpose
instead of List.transpose(xss)
Transforms an iterable of pairs into a pair of lists.
Transforms an iterable of pairs into a pair of lists.
the iterable of pairs to unzip
a pair of lists.
(Since version 2.8.0) use xs.unzip
instead of List.unzip(xs)
Transforms a list of pairs into a pair of lists.
Transforms a list of pairs into a pair of lists.
the list of pairs to unzip
a pair of lists.
(Since version 2.8.0) use xs.unzip
instead of List.unzip(xs)
This object provides a set of operations to create
values.List