Grouping<TKey, TValue> class

This class is created by calls to grouping Iterable methods and isn't intended to be instantiated directly.

Inheritance
Available Extensions

Constructors

Grouping(List<TValue> elements, TKey key, int hash)

Properties

count → int
no setter
elements ↔ List<TValue>
getter/setter pair
first → TValue
The first element.
no setterinherited
hash ↔ int
getter/setter pair
hashCode → int
The hash code for this object.
no setteroverride
hashNext ↔ Grouping<TKey, TValue>?
getter/setter pair
isEmpty → bool
Whether this collection has no elements.
no setterinherited
isNotEmpty → bool
Whether this collection has at least one element.
no setterinherited
iterator → Iterator<TValue>
A new Iterator that allows iterating the elements of this Iterable.
no setteroverride
key ↔ TKey
getter/setter pair
last → TValue
The last element.
no setterinherited
length → int
The number of elements in this.
no setterinherited
next ↔ Grouping<TKey, TValue>?
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
single → TValue
Checks that this iterable has only one element, and returns that element.
no setterinherited

Methods

add(TValue value) → void
any(bool test(TValue element)) → bool
Checks whether any element of this iterable satisfies test.
inherited
cast<R>() → Iterable<R>
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.
inherited
containsValue(TValue value) → bool
elementAt(int index) → TValue
Returns the indexth element.
inherited
every(bool test(TValue element)) → bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> toElements(TValue element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
firstWhere(bool test(TValue element), {TValue orElse()?}) → TValue
The first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, TValue element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
inherited
followedBy(Iterable<TValue> other) → Iterable<TValue>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(TValue element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
indexOf(TValue value) → int
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
inherited
lastWhere(bool test(TValue element), {TValue orElse()?}) → TValue
The last element that satisfies the given predicate test.
inherited
map<T>(T toElement(TValue e)) → Iterable<T>
The current elements of this iterable modified by toElement.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reduce(TValue combine(TValue value, TValue element)) → TValue
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
singleWhere(bool test(TValue element), {TValue orElse()?}) → TValue
The single element that satisfies test.
inherited
skip(int count) → Iterable<TValue>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(TValue value)) → Iterable<TValue>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
take(int count) → Iterable<TValue>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(TValue value)) → Iterable<TValue>
Creates a lazy iterable of the leading elements satisfying test.
inherited
toList({bool growable = true}) → List<TValue>
Creates a List containing the elements of this Iterable.
inherited
toSet() → Set<TValue>
Creates a Set containing the same elements as this iterable.
inherited
toString() → String
Returns a string representation of (some of) the elements of this.
override
where(bool test(TValue element)) → Iterable<TValue>
Creates a new lazy Iterable with all elements that satisfy the predicate test.
inherited
whereType<T>() → Iterable<T>
Creates a new lazy Iterable with all elements that have type T.
inherited

Operators

operator ==(Object? other) → bool
The equality operator.
override
operator [](int index) → TValue