dart:collection
IterableMixin<E> class
This Iterable mixin implements all Iterable members except iterator.
All other methods are implemented in terms of iterator.
- Implements
-
- Implemented by
Constructors
- IterableMixin()
Properties
- first → E
read-only
- Returns the first element. [...]
- isEmpty → bool
read-only
- Returns
true if there are no elements in this collection. [...] - isNotEmpty → bool
read-only
- Returns true if there is at least one element in this collection. [...]
- last → E
read-only
- Returns the last element. [...]
- length → int
read-only
- Returns the number of elements in this. [...]
- single → E
read-only
- Checks that this iterable has only one element, and returns that element. [...]
- hashCode → int
read-only, inherited
- The hash code for this object. [...]
- iterator → Iterator<E>
read-only, inherited
- Returns a new
Iterator that allows iterating the elements of this Iterable. [...] - runtimeType → Type
read-only, inherited
- A representation of the runtime type of the object.
Methods
- any(bool test(E element)) → bool
- Checks whether any element of this iterable satisfies
test. [...] - cast<R>() → Iterable<R>
- Provides a view of this iterable as an iterable of
R instances. [...] - contains(Object element) → bool
- Returns true if the collection contains an element equal to
element. [...] - elementAt(int index) → E
- Returns the
indexth element. [...] - every(bool f(E element)) → bool
- Checks whether every element of this iterable satisfies
test. [...] - expand<T>(Iterable<T> f(E element)) → Iterable<T>
- Expands each element of this Iterable into zero or more elements. [...]
- firstWhere(bool test(E value), { E orElse() }) → E
- Returns the first element that satisfies the given predicate
test. [...] - fold<T>(T initialValue, T combine(T previousValue, E element)) → T
- Reduces a collection to a single value by iteratively combining each element of the collection with an existing value [...]
- followedBy(Iterable<E> other) → Iterable<E>
- Returns the lazy concatentation of this iterable and
other. [...] - forEach(void f(E element)) → void
- Applies the function
f to each element of this collection in iteration order. - join([String separator = "" ]) → String
- Converts each element to a String and concatenates the strings. [...]
- lastWhere(bool test(E value), { E orElse() }) → E
- Returns the last element that satisfies the given predicate
test. [...] - map<T>(T f(E element)) → Iterable<T>
- Returns a new lazy Iterable with elements that are created by calling
f on each element of this Iterable in iteration order. [...] - reduce(E combine(E value, E element)) → E
- Reduces a collection to a single value by iteratively combining elements of the collection using the provided function. [...]
- singleWhere(bool test(E element), { E orElse() }) → E
- Returns the single element that satisfies
test. [...] - skip(int count) → Iterable<E>
- Returns an Iterable that provides all but the first
count elements. [...] - skipWhile(bool test(E value)) → Iterable<E>
- Returns an
Iterable that skips leading elements while test is satisfied. [...] - take(int count) → Iterable<E>
- Returns a lazy iterable of the
count first elements of this iterable. [...] - takeWhile(bool test(E value)) → Iterable<E>
- Returns a lazy iterable of the leading elements satisfying
test. [...] - toList({bool growable: true }) → List<E>
- Creates a List containing the elements of this Iterable. [...]
- toSet() → Set<E>
- Creates a Set containing the same elements as this iterable. [...]
- toString() → String
- Returns a string representation of this object.
- where(bool f(E element)) → Iterable<E>
- Returns a new lazy Iterable with all elements that satisfy the predicate
test. [...] - whereType<T>() → Iterable<T>
- Returns a new lazy Iterable with all elements that have type
T. [...] - noSuchMethod(Invocation invocation) → dynamic
inherited
- Invoked when a non-existent method or property is accessed. [...]
Operators
- operator ==(dynamic other) → bool
inherited
- The equality operator. [...]