GroupByX<TObj, TKey> class

Inheritance
Available Extensions

Constructors

GroupByX(TKey key)

Properties

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

Methods

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