dart:collection

IterableBase abstract class

Base class for implementing Iterable.

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

Inheritance

• Object
• Iterable<E>
• IterableBase

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 this Iterable.

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 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.