ListExtensions<E> extension
Null safety
Various extensions on lists of arbitrary elements.
- on
-
- List<
E>
- List<
Methods
-
binarySearch(
E element, int compare(E, E)) → int -
Returns the index of
element
in this sorted list. -
binarySearchBy<
K extends Comparable< (K> >E element, K keyOf(E element), [int start = 0, int? end]) → int -
Returns the index of
element
in this sorted list. -
binarySearchByCompare<
K> (E element, K keyOf(E element), int compare(K, K), [int start = 0, int? end]) → int -
Returns the index of
element
in this sorted list. -
equals(
List< E> other, [Equality<E> equality = const DefaultEquality()]) → bool -
Whether
other
has the same elements as this list. -
expandIndexed<
R> (Iterable< R> expand(int index, E element)) → Iterable<R> - Expands each element and index to a number of elements in a new iterable.
-
forEachIndexed(
void action(int index, E element)) → void - Takes an action for each element.
-
forEachIndexedWhile(
bool action(int index, E element)) → void - Takes an action for each element and index as long as desired.
-
forEachWhile(
bool action(E element)) → void - Takes an action for each element as long as desired.
-
lowerBound(
E element, int compare(E, E)) → int -
Returns the index where
element
should be in this sorted list. -
lowerBoundBy<
K extends Comparable< (K> >E element, K keyOf(E), [int start = 0, int? end]) → int -
Returns the index where
element
should be in this sorted list. -
lowerBoundByCompare<
K> (E element, K keyOf(E), int compare(K, K), [int start = 0, int? end]) → int -
Returns the index where
element
should be in this sorted list. -
mapIndexed<
R> (R convert(int index, E element)) → Iterable< R> - Maps each element and its index to a new value.
-
reverseRange(
int start, int end) → void - Reverses the elements in a range of the list.
-
shuffleRange(
int start, int end, [Random? random]) → void - Shuffle a range of elements.
-
slice(
int start, [int? end]) → ListSlice< E> - A fixed length view of a range of this list.
-
slices(
int length) → Iterable< List< E> > -
Contiguous slices of this with the given
length
. -
sortBy<
K extends Comparable< (K> >K keyOf(E element), [int start = 0, int? end]) → void -
Sorts elements by the natural order of their
keyOf
property. -
sortByCompare<
K> (K keyOf(E element), int compare(K a, K b), [int start = 0, int? end]) → void -
Sorts elements by the
compare
of theirkeyOf
property. -
sortRange(
int start, int end, int compare(E a, E b)) → void -
Sort a range of elements by
compare
. -
swap(
int index1, int index2) → void - Swaps two elements of this list.
-
whereIndexed(
bool test(int index, E element)) → Iterable< E> -
The elements whose value and index satisfies
test
. -
whereNotIndexed(
bool test(int index, E element)) → Iterable< E> -
The elements whose value and index do not satisfy
test
.