IterableBase abstract class
Base class for implementing Iterable.
This class implements all methods of Iterable except Iterable.iterator in terms of iterator
.
Static Methods
- iterableToFullString(
Iterable iterable, [ String leftDelimiter = '(', String rightDelimiter = ')' ]) → String -
Converts an
Iterable
to a string. - iterableToShortString(
Iterable iterable, [ String leftDelimiter = '(', String rightDelimiter = ')' ]) → String -
Convert an
Iterable
to a string like IterableBase.toString.
Constructors
- IterableBase() const
Properties
- first → E read-only, inherited
-
Returns the first element.
- hashCode → int read-only, inherited
-
The hash code for this object.
- isEmpty → bool read-only, inherited
-
Returns
true
if there are no elements in this collection. - isNotEmpty → bool read-only, inherited
-
Returns true if there is at least one element in this collection.
- iterator → Iterator<E> read-only, inherited
-
Returns a new
Iterator
that allows iterating the elements of thisIterable
. - last → E read-only, inherited
-
Returns the last element.
- length → int read-only, inherited
-
Returns the number of elements in
this
. - runtimeType → Type read-only, inherited
-
A representation of the runtime type of the object.
- single → E read-only, inherited
-
Checks that this iterable has only one element, and returns that element.
Operators
- operator ==(
other) → bool inherited -
The equality operator.
Methods
- any(
bool f(E element)) → bool inherited -
Checks whether any element of this iterable satisfies
test
. - contains(
Object element) → bool inherited -
Returns true if the collection contains an element equal to
element
. - elementAt(
int index) → E inherited -
Returns the
index
th element. - every(
bool f(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.
- firstWhere(
bool test(E element), { E orElse() }) → E 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
- forEach(
void f(E element)) → void inherited -
Applies the function
f
to each element of this collection in iteration order. - join(
[String separator = "" ]) → String inherited -
Converts each element to a String and concatenates the strings.
- lastWhere(
bool test(E element), { E orElse() }) → E 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 thisIterable
in iteration order. - noSuchMethod(
Invocation invocation) → dynamic inherited -
Invoked when a non-existent method or property is accessed.
- reduce(
E combine(E value, E element)) → E inherited -
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
- singleWhere(
bool test(E element)) → E inherited -
Returns the single element that satisfies
test
. - skip(
int count) → Iterable<E> inherited -
Returns an Iterable that provides all but the first
count
elements. - skipWhile(
bool test(E value)) → Iterable<E> inherited -
Returns an
Iterable
that skips leading elements whiletest
is satisfied. - take(
int count) → Iterable<E> inherited -
Returns a lazy iterable of the
count
first elements of this iterable. - takeWhile(
bool test(E value)) → Iterable<E> inherited -
Returns a lazy iterable of the leading elements satisfying
test
. - toList(
{bool growable: true }) → List<E> inherited - toSet(
) → Set<E> inherited -
Creates a Set containing the same elements as this iterable.
- toString(
) → String inherited -
Returns a string representation of (some of) the elements of
this
. - where(
bool test(E element)) → Iterable<E> inherited -
Returns a new lazy Iterable with all elements that satisfy the predicate
test
.
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-collection/IterableBase-class.html