EmptyIntRange class Null safety

An empty IntRange, which contains no value.

It's returned when you try to create an IntRange with the same value of first and last, in an exclusive manner. For example:

1.until(1) // => EmptyIntRange
1.downUntil(1) // => EmptyIntRange

An UnsupportedError will be raised when you try to access the from/to/first/last property of an EmptyIntRange.

Inheritance
Available Extensions

Constructors

EmptyIntRange()
const

Properties

first → int
Returns the first element. [...]
read-only, override
from → int
The beginning value in the range. [...]
read-only, override
hashCode → int
The hash code for this object. [...]
read-only, inherited
isEmpty → bool
Returns true if there are no elements in this collection. [...]
read-only, inherited
isNotEmpty → bool
Returns true if there is at least one element in this collection. [...]
read-only, inherited
iterator → Iterator<int>
Returns a new Iterator that allows iterating the elements of this Iterable. [...]
read-only, override
last → int
Returns the last element. [...]
read-only, override
length → int
Returns the number of elements in this. [...]
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited
single → int
Checks that this iterable has only one element, and returns that element. [...]
read-only, inherited
step → int
Size of an increment/decrement step, also known as common difference between the consecutive terms.
final, inherited
to → int
The end value in the range. [...]
read-only, override

Methods

any(bool test(int element)) → bool
Checks whether any element of this iterable satisfies test. [...]
inherited
cast<R>() → Iterable<R>
Provides a view of this iterable as an iterable of R instances. [...]
inherited
contains(Object? n) → bool
Whether the collection contains an element equal to element. [...]
override
elementAt(int index) → int
Returns the indexth element. [...]
inherited
every(bool test(int element)) → bool
Checks whether every element of this iterable satisfies test. [...]
inherited
expand<T>(Iterable<T> toElements(int element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements. [...]
inherited
firstWhere(bool test(int element), {int orElse()?}) → int
Returns the first element that satisfies the given predicate test. [...]
inherited
fold<T>(T initialValue, T combine(T previousValue, int element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value [...]
inherited
followedBy(Iterable<int> other) → Iterable<int>
Returns the lazy concatenation of this iterable and other. [...]
inherited
forEach(void action(int 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(int element), {int orElse()?}) → int
Returns the last element that satisfies the given predicate test. [...]
inherited
map<T>(T toElement(int e)) → Iterable<T>
The current elements of this iterable modified by toElement. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
reduce(int combine(int value, int element)) → int
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function. [...]
inherited
singleWhere(bool test(int element), {int orElse()?}) → int
Returns the single element that satisfies test. [...]
inherited
skip(int count) → Iterable<int>
Returns an Iterable that provides all but the first count elements. [...]
inherited
skipWhile(bool test(int value)) → Iterable<int>
Returns an Iterable that skips leading elements while test is satisfied. [...]
inherited
take(int count) → Iterable<int>
Returns a lazy iterable of the count first elements of this iterable. [...]
inherited
takeWhile(bool test(int value)) → Iterable<int>
Returns a lazy iterable of the leading elements satisfying test. [...]
inherited
toList({bool growable = true}) → List<int>
Creates a List containing the elements of this Iterable. [...]
inherited
toSet() → Set<int>
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(int element)) → Iterable<int>
Returns a new lazy Iterable with all elements that satisfy the predicate test. [...]
inherited
whereType<T>() → Iterable<T>
Returns a new lazy Iterable with all elements that have type T. [...]
inherited

Operators

operator ==(Object other) → bool
The equality operator. [...]
inherited