CombinedIterableView<T> class
Null safety
A view of several iterables combined sequentially into a single iterable.
All methods and accessors treat the CombinedIterableView as if it were a single concatenated iterable, but the underlying implementation is based on lazily accessing individual iterable instances. This means that if the underlying iterables change, the CombinedIterableView will reflect those changes.
- Inheritance
-
- Object
- Iterable<
T> - IterableBase<
T> - CombinedIterableView
- Available Extensions
Constructors
-
CombinedIterableView(Iterable<
Iterable< _iterables)T> > -
Creates a combined view of
iterables
.const
Properties
- first → T
-
Returns the first element.
read-onlyinherited
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- isEmpty → bool
-
Whether this collection has no elements.
read-onlyoverride
- isNotEmpty → bool
-
Whether this collection has at least one element.
read-onlyinherited
-
iterator
→ Iterator<
T> -
Returns a new
Iterator
that allows iterating the elements of thisIterable
.read-onlyoverride - last → T
-
Returns the last element.
read-onlyinherited
- length → int
-
Returns the number of elements in this.
read-onlyoverride
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
- single → T
-
Checks that this iterable has only one element, and returns that element.
read-onlyinherited
Methods
-
any(
bool test(T element)) → bool -
Checks whether any element of this iterable satisfies
test
.inherited -
cast<
R> () → Iterable< R> -
Provides a view of this iterable as an iterable of
R
instances.inherited -
contains(
Object? element) → bool -
Whether the collection contains an element equal to
element
.override -
elementAt(
int index) → T -
Returns the
index
th element.inherited -
every(
bool test(T element)) → bool -
Checks whether every element of this iterable satisfies
test
.inherited -
expand<
T> (Iterable< T> toElements(T element)) → Iterable<T> -
Expands each element of this Iterable into zero or more elements.
inherited
-
firstWhere(
bool test(T element), {T orElse()?}) → T -
Returns the first element that satisfies the given predicate
test
.inherited -
fold<
T> (T initialValue, T combine(T previousValue, T element)) → T -
Reduces a collection to a single value by iteratively combining each
element of the collection with an existing value
inherited
-
followedBy(
Iterable< T> other) → Iterable<T> -
Returns the lazy concatenation of this iterable and
other
.inherited -
forEach(
void action(T element)) → void -
Invokes
action
on each element of this iterable in iteration order.inherited -
join(
[String separator = ""]) → String -
Converts each element to a String and concatenates the strings.
inherited
-
lastWhere(
bool test(T element), {T orElse()?}) → T -
Returns the last element that satisfies the given predicate
test
.inherited -
map<
T> (T toElement(T e)) → Iterable< T> -
The current elements of this iterable modified by
toElement
.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
-
reduce(
T combine(T value, T element)) → T -
Reduces a collection to a single value by iteratively combining elements
of the collection using the provided function.
inherited
-
singleWhere(
bool test(T element), {T orElse()?}) → T -
Returns the single element that satisfies
test
.inherited -
skip(
int count) → Iterable< T> -
Returns an Iterable that provides all but the first
count
elements.inherited -
skipWhile(
bool test(T value)) → Iterable< T> -
Returns an
Iterable
that skips leading elements whiletest
is satisfied.inherited -
take(
int count) → Iterable< T> -
Returns a lazy iterable of the
count
first elements of this iterable.inherited -
takeWhile(
bool test(T value)) → Iterable< T> -
Returns a lazy iterable of the leading elements satisfying
test
.inherited -
toList(
{bool growable = true}) → List< T> -
Creates a List containing the elements of this Iterable.
inherited
-
toSet(
) → Set< T> -
Creates a Set containing the same elements as this iterable.
inherited
-
toString(
) → String -
Returns a string representation of (some of) the elements of
this
.inherited -
where(
bool test(T element)) → Iterable< T> -
Returns a new lazy Iterable with all elements that satisfy the
predicate
test
.inherited -
whereType<
T> () → Iterable< T> -
Returns a new lazy Iterable with all elements that have type
T
.inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited