IntRange class Null safety
A range of values of type int, and it also represents an arithmetic progression.
It can be used as an Iterable to access each integer in the range. For example:
Range.upTo(2).forEach((n) => print(n)) // => 0, 1, 2
1.upTo(5, step: 2).forEach((n) => print(n)) // => 1, 3, 5
1.downTo(-1).forEach((n) => print(n)) // => 1, 0, -1
- Inheritance
- Object
- Iterable<
int> - Progression
- IntRange
- Implemented types
- Implementers
- Available Extensions
Constructors
Properties
- first → int
-
Returns the first element. [...]
read-only, inherited
- 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 thisIterable
. [...]read-only, inherited - last → int
-
Returns the last element. [...]
read-only, inherited
- 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
index
th 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 whiletest
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
. [...]inherited -
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