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Float64List class

A fixed-length list of IEEE 754 double-precision binary floating-point numbers that is viewable as a TypedData.

For long lists, this implementation can be considerably more space- and time-efficient than the default List implementation.

Implemented types
Implementers

Constructors

Float64List(int length)
factory
Creates a Float64List of the specified length (in elements), all of whose elements are initially zero.
Float64List.fromList(List<double> elements)
factory
Creates a Float64List with the same length as the elements list and copies over the elements.
Float64List.view(ByteBuffer buffer, [ int offsetInBytes = 0, int length ])
factory
Creates a Float64List view of the specified region in buffer. [...]

Properties

bufferByteBuffer
read-only, inherited
Returns the byte buffer associated with this object.
elementSizeInBytesint
read-only, inherited
Returns the number of bytes in the representation of each element in this list.
firstdouble
read / write, inherited
Returns the first element. [...]
hashCodeint
read-only, inherited
The hash code for this object. [...]
isEmptybool
read-only, inherited
Returns true if there are no elements in this collection. [...]
isNotEmptybool
read-only, inherited
Returns true if there is at least one element in this collection. [...]
iteratorIterator<double>
read-only, inherited
Returns a new Iterator that allows iterating the elements of this Iterable. [...]
lastdouble
read / write, inherited
Returns the last element. [...]
lengthint
read / write, inherited
Returns the number of objects in this list. [...]
lengthInBytesint
read-only, inherited
Returns the length of this view, in bytes.
offsetInBytesint
read-only, inherited
Returns the offset in bytes into the underlying byte buffer of this view.
reversedIterable<double>
read-only, inherited
Returns an Iterable of the objects in this list in reverse order.
runtimeTypeType
read-only, inherited
A representation of the runtime type of the object.
singledouble
read-only, inherited
Checks that this iterable has only one element, and returns that element. [...]

Methods

sublist(int start, [ int end ]) → Float64List
override
Returns a new list containing the elements between start and end. [...]
add(double value) → void
inherited
Adds value to the end of this list, extending the length by one. [...]
addAll(Iterable<double> iterable) → void
inherited
Appends all objects of iterable to the end of this list. [...]
any(bool test(E element)) → bool
inherited
Checks whether any element of this iterable satisfies test. [...]
asMap() → Map<int, double>
inherited
Returns an unmodifiable Map view of this. [...]
cast<R>() → List<R>
inherited
Returns a view of this list as a list of R instances. [...]
clear() → void
inherited
Removes all objects from this list; the length of the list becomes zero. [...]
contains(Object element) → bool
inherited
Returns true if the collection contains an element equal to element. [...]
elementAt(int index) → double
inherited
Returns the indexth element. [...]
every(bool test(E element)) → bool
inherited
Checks whether every element of this iterable satisfies test. [...]
expand<T>(Iterable<T> f(E element)) → Iterable<T>
inherited
Expands each element of this Iterable into zero or more elements. [...]
fillRange(int start, int end, [ double fillValue ]) → void
inherited
Sets the objects in the range start inclusive to end exclusive to the given fillValue. [...]
firstWhere(bool test(E element), { double orElse() }) → double
inherited
Returns the first element that satisfies the given predicate test. [...]
fold<T>(T initialValue, T combine(T previousValue, E element)) → T
inherited
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value [...]
followedBy(Iterable<double> other) → Iterable<double>
inherited
Returns the lazy concatentation of this iterable and other. [...]
forEach(void f(E element)) → void
inherited
Applies the function f to each element of this collection in iteration order.
getRange(int start, int end) → Iterable<double>
inherited
Returns an Iterable that iterates over the objects in the range start inclusive to end exclusive. [...]
indexOf(double element, [ int start = 0 ]) → int
inherited
Returns the first index of element in this list. [...]
indexWhere(bool test(E element), [ int start = 0 ]) → int
inherited
Returns the first index in the list that satisfies the provided test. [...]
insert(int index, double element) → void
inherited
Inserts the object at position index in this list. [...]
insertAll(int index, Iterable<double> iterable) → void
inherited
Inserts all objects of iterable at position index in this list. [...]
join([String separator = "" ]) → String
inherited
Converts each element to a String and concatenates the strings. [...]
lastIndexOf(double element, [ int start ]) → int
inherited
Returns the last index of element in this list. [...]
lastIndexWhere(bool test(E element), [ int start ]) → int
inherited
Returns the last index in the list that satisfies the provided test. [...]
lastWhere(bool test(E element), { double orElse() }) → double
inherited
Returns the last element that satisfies the given predicate test. [...]
map<T>(T f(E e)) → Iterable<T>
inherited
Returns a new lazy Iterable with elements that are created by calling f on each element of this Iterable in iteration order. [...]
noSuchMethod(Invocation invocation) → dynamic
inherited
Invoked when a non-existent method or property is accessed. [...]
reduce(double combine(E value, E element)) → double
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 value from this list. [...]
removeAt(int index) → double
inherited
Removes the object at position index from this list. [...]
removeLast() → double
inherited
Pops and returns the last object in this list. [...]
removeRange(int start, int end) → void
inherited
Removes the objects in the range start inclusive to end exclusive. [...]
removeWhere(bool test(E element)) → void
inherited
Removes all objects from this list that satisfy test. [...]
replaceRange(int start, int end, Iterable<double> replacement) → void
inherited
Removes the objects in the range start inclusive to end exclusive and inserts the contents of replacement in its place. [...]
retainWhere(bool test(E element)) → void
inherited
Removes all objects from this list that fail to satisfy test. [...]
setAll(int index, Iterable<double> iterable) → void
inherited
Overwrites objects of this with the objects of iterable, starting at position index in this list. [...]
setRange(int start, int end, Iterable<double> iterable, [ int skipCount = 0 ]) → void
inherited
Copies the objects of iterable, skipping skipCount objects first, into the range start, inclusive, to end, exclusive, of the list. [...]
shuffle([Random random ]) → void
inherited
Shuffles the elements of this list randomly.
singleWhere(bool test(E element), { double orElse() }) → double
inherited
Returns the single element that satisfies test. [...]
skip(int count) → Iterable<double>
inherited
Returns an Iterable that provides all but the first count elements. [...]
skipWhile(bool test(E value)) → Iterable<double>
inherited
Returns an Iterable that skips leading elements while test is satisfied. [...]
sort([int compare(E a, E b) ]) → void
inherited
Sorts this list according to the order specified by the compare function. [...]
take(int count) → Iterable<double>
inherited
Returns a lazy iterable of the count first elements of this iterable. [...]
takeWhile(bool test(E value)) → Iterable<double>
inherited
Returns a lazy iterable of the leading elements satisfying test. [...]
toList({bool growable: true }) → List<double>
inherited
Creates a List containing the elements of this Iterable. [...]
toSet() → Set<double>
inherited
Creates a Set containing the same elements as this iterable. [...]
toString() → String
inherited
Returns a string representation of this object.
where(bool test(E element)) → Iterable<double>
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<double> other) → List<double>
inherited
Returns the concatenation of this list and other. [...]
operator ==(dynamic other) → bool
inherited
The equality operator. [...]
operator [](int index) → double
inherited
Returns the object at the given index in the list or throws a RangeError if index is out of bounds.
operator []=(int index, double value) → void
inherited
Sets the value at the given index in the list to value or throws a RangeError if index is out of bounds.

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/2.5.0/dart-typed_data/Float64List-class.html