IterableBase abstract class

Base class for implementing Iterable.

This class implements all methods of Iterable except Iterable.iterator in terms of iterator.

Inheritance

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.

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<E>
read-only, inherited

Returns a new Iterator that allows iterating the elements of this Iterable.

last → E
read-only, inherited

Returns the last element.

lengthint
read-only, inherited

Returns the number of elements in this.

runtimeTypeType
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 indexth 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 this Iterable 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 while test 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

Creates a List containing the elements of this Iterable.

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