Uint64List class
A fixed-length list of 64-bit unsigned integers that is viewable as a TypedData.
For long lists, this implementation can be considerably more space- and time-efficient than the default List implementation.
Integers stored in the list are truncated to their low 64 bits, interpreted as an unsigned 64-bit integer with values in the range 0 to 18446744073709551615.
- Implemented types
- Implementers
- Available Extensions
Constructors
-
Uint64List(
int length)
factory
- Creates a Uint64List of the specified length (in elements), all of whose elements are initially zero.
-
Uint64List.fromList(
List<
int> elements) factory -
Creates a
Uint64List with the same length as the
elementslist and copies over the elements. -
Uint64List.sublistView(
TypedData data, [
int start = 0,
int? end])
factory
-
Creates a
Uint64List view on a range of elements of
data. -
Uint64List.view(
ByteBuffer buffer, [
int offsetInBytes = 0,
int? length])
factory
- Creates an Uint64List view of the specified region in the specified byte buffer.
Properties
-
buffer →
ByteBuffer
read-only, inherited
- Returns the byte buffer associated with this object.
-
elementSizeInBytes →
int
read-only, inherited
- Returns the number of bytes in the representation of each element in this list.
-
first ↔
int
read / write, inherited
- Returns the first element.
-
hashCode →
int
read-only, inherited
- The hash code for this object.
-
isEmpty →
bool
read-only, inherited
- Whether this collection has no elements.
-
isNotEmpty →
bool
read-only, inherited
- Whether this collection has at least one element.
-
iterator →
Iterator<
int> read-only, inherited -
Returns a new
Iteratorthat allows iterating the elements of thisIterable. -
last ↔
int
read / write, inherited
- Returns the last element.
-
length ↔
int
read / write, inherited
- The number of objects in this list.
-
lengthInBytes →
int
read-only, inherited
- Returns the length of this view, in bytes.
-
offsetInBytes →
int
read-only, inherited
- Returns the offset in bytes into the underlying byte buffer of this view.
-
reversed →
Iterable<
int> read-only, inherited - An Iterable of the objects in this list in reverse order.
-
runtimeType →
Type
read-only, inherited
- A representation of the runtime type of the object.
-
single →
int
read-only, inherited
- Checks that this iterable has only one element, and returns that element.
Methods
-
add(
int value) → void inherited -
Adds
valueto the end of this list, extending the length by one. -
addAll(
Iterable< int> iterable) → void inherited -
Appends all objects of
iterableto the end of this list. -
any(
bool test( int element)) → bool inherited -
Checks whether any element of this iterable satisfies
test. -
asMap(
) → Map< int, int> inherited - An unmodifiable Map view of this list.
-
cast<
R>( ) → List< R> inherited -
Returns a view of this list as a list of
Rinstances. -
clear(
) → void inherited - Removes all objects from this list; the length of the list becomes zero.
-
contains(
Object? element) → bool inherited -
Whether the collection contains an element equal to
element. -
elementAt(
int index) → int inherited -
Returns the
indexth element. -
every(
bool test( int element)) → bool inherited -
Checks whether every element of this iterable satisfies
test. -
expand<
T>( Iterable< T> toElements( int element)) → Iterable< T> inherited - Expands each element of this Iterable into zero or more elements.
-
fillRange(
int start, int end, [ int? fillValue]) → void inherited -
Overwrites a range of elements with
fillValue. -
firstWhere(
bool test( int element), { int orElse()?}) → int inherited -
Returns the first element that satisfies the given predicate
test. -
fold<
T>( T initialValue, T combine(T previousValue, int element)) → T inherited - Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
-
followedBy(
Iterable< int> other) → Iterable< int> inherited -
Returns the lazy concatenation of this iterable and
other. -
forEach(
void action( int element)) → void inherited -
Invokes
actionon each element of this iterable in iteration order. -
getRange(
int start, int end) → Iterable< int> inherited - Creates an Iterable that iterates over a range of elements.
-
indexOf(
int element, [ int start = 0]) → int inherited -
The first index of
elementin this list. -
indexWhere(
bool test( int element), [ int start = 0]) → int inherited -
The first index in the list that satisfies the provided
test. -
insert(
int index, int element) → void inherited -
Inserts
elementat positionindexin this list. -
insertAll(
int index, Iterable< int> iterable) → void inherited -
Inserts all objects of
iterableat positionindexin this list. -
join(
[ String separator = ""]) → String inherited - Converts each element to a String and concatenates the strings.
-
lastIndexOf(
int element, [ int? start]) → int inherited -
The last index of
elementin this list. -
lastIndexWhere(
bool test( int element), [ int? start]) → int inherited -
The last index in the list that satisfies the provided
test. -
lastWhere(
bool test( int element), { int orElse()?}) → int inherited -
Returns the last element that satisfies the given predicate
test. -
map<
T>( T toElement( int e)) → Iterable< T> inherited -
The current elements of this iterable modified by
toElement. -
noSuchMethod(
Invocation invocation) → dynamic inherited - Invoked when a non-existent method or property is accessed.
-
reduce(
int combine( int value, int element)) → int inherited - Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
-
remove(
Object? value) → bool inherited -
Removes the first occurrence of
valuefrom this list. -
removeAt(
int index) → int inherited -
Removes the object at position
indexfrom this list. -
removeLast(
) → int inherited - Removes and returns the last object in this list.
-
removeRange(
int start, int end) → void inherited - Removes a range of elements from the list.
-
removeWhere(
bool test( int element)) → void inherited -
Removes all objects from this list that satisfy
test. -
replaceRange(
int start, int end, Iterable< int> replacements) → void inherited -
Replaces a range of elements with the elements of
replacements. -
retainWhere(
bool test( int element)) → void inherited -
Removes all objects from this list that fail to satisfy
test. -
setAll(
int index, Iterable< int> iterable) → void inherited -
Overwrites elements with the objects of
iterable. -
setRange(
int start, int end, Iterable< int> iterable, [ int skipCount = 0]) → void inherited -
Writes some elements of
iterableinto a range of this list. -
shuffle(
[ Random? random]) → void inherited - Shuffles the elements of this list randomly.
-
singleWhere(
bool test( int element), { int orElse()?}) → int inherited -
Returns the single element that satisfies
test. -
skip(
int count) → Iterable< int> inherited -
Returns an
Iterable that provides all but the first
countelements. -
skipWhile(
bool test( int value)) → Iterable< int> inherited -
Returns an
Iterablethat skips leading elements whiletestis satisfied. -
sort(
[ int compare( int a, int b)?]) → void inherited -
Sorts this list according to the order specified by the
comparefunction. -
sublist(
int start, [ int? end]) → Uint64List override -
Returns a new list containing the elements between
startandend. -
take(
int count) → Iterable< int> inherited -
Returns a lazy iterable of the
countfirst elements of this iterable. -
takeWhile(
bool test( int value)) → Iterable< int> inherited -
Returns a lazy iterable of the leading elements satisfying
test. -
toList(
{ bool growable = true}) → List< int> inherited - Creates a List containing the elements of this Iterable.
-
toSet(
) → Set< int> inherited - Creates a Set containing the same elements as this iterable.
-
toString(
) → String inherited - A string representation of this object.
-
where(
bool test( int element)) → Iterable< int> inherited -
Returns a new lazy
Iterable with all elements that satisfy the predicate
test. -
whereType<
T>( ) → Iterable< T> inherited -
Returns a new lazy
Iterable with all elements that have type
T.
Operators
-
operator +(
List< int> other) → List< int> inherited -
Returns the concatenation of this list and
other. -
operator ==(
Object other) → bool inherited - The equality operator.
-
operator [](
int index) → int inherited -
The object at the given
indexin the list. -
operator []=(
int index, int value) → void inherited -
Sets the value at the given
indexin the list tovalue.
Constants
- bytesPerElement → const int
-
8
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.17.0/dart-typed_data/Uint64List-class.html
