functions/functions
library
Functions
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addAround<V>(List<V> list, Generator<V> generator)
→ List<V>
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Returns new list with items generated around
list
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addBetween<V>(List<V> list, Generator<V> generate)
→ List<V>
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Returns new list with items generated between list.
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containsAll<E>(Iterable<E> listA, Iterable<E> listB)
→ bool
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Check if all elements in the
listB is contains in the listA
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containsAny<E>(Iterable<E> listA, Iterable<E> listB)
→ bool
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Check if any elements in the
listB is contains in the listA
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containsAtLeast<E>(Iterable<E> listA, Iterable<E> listB, int atLeast)
→ bool
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Check if
atLeast elements in the listB is contains in the listA
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containsHits<E>(Iterable<E> listA, Iterable<E> listB)
→ int
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Count of items that hit both lists
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diff<V>(Iterable<V> listA, Iterable<V> listB)
→ List<V>
-
Elements that you have in
listA and do not have in listB.
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firstOrNull<V>(Iterable<V> list)
→ V?
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Returns first element in array, if it's empty returns null.
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firstWhereOrAdd<V>(List<V> list, bool test(V element), OrAdd<V> orAdd)
→ V
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Returns the first element that satisfies the test if there isn't one add a new one and return it.
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firstWhereOrNull<T>(Iterable<T> iterable, bool test(T element))
→ T?
-
-
flat<V>(Iterable<V> list)
→ List<V>
-
Flatting a
list that has other lists inside other lists inside other lists ... recursive
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forEachAsync<V>(Iterable<V> source, Future<void> forEach(V elemente), [int parallels = 1])
→ Future<void>
-
Iterable elements of
source with support async function and runs it's in parallels
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groupBySize<V>(Iterable<V> source, int sizeEachList)
→ Iterable<Iterable<V>>
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Groups the items from the list
source into sub-lists of the size given in sizeEachList
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intersection<V>(Iterable<V> listA, Iterable<V> listB)
→ Iterable<V>
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Common elements between
listA and listB
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isFirst<V>(Iterable<V> list, V element)
→ bool
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Returns a true value if element is the first in the list.
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isFirstIndex<V>(Iterable<V> list, int index)
→ bool
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Returns a true value if index is the first in the list.
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isLast<V>(Iterable<V> list, V element)
→ bool
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Returns a true value if element is the last in the list.
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isLastIndex<V>(Iterable<V> list, int index)
→ bool
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Returns a true value if index is the last in the list.
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join<V>(Iterable<V> list, [String separator = '', String? last])
→ String
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It joins all elements of the list with one separator and for the last iteration a different separator.
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lastOrNull<V>(Iterable<V> list)
→ V?
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Returns last element in array, if it's empty returns null.
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lastWhereOrAdd<V>(List<V> list, bool test(V element), OrAdd<V> orAdd)
→ V
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Returns the last element that satisfies the test if there isn't one add a new one and return it.
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lastWhereOrNull<T>(Iterable<T> iterable, bool test(T element))
→ T?
-
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mapAsStream<V>(Iterable<V> source, Future<V> forEach(V elemente), [int parallels = 1])
→ Stream<V>
-
Iterable elements of
source with support async and emits each forEach async end
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mapAsync<V, R>(Iterable<V> source, Future<R> toElement(V element), [int parallels = 1])
→ Future<List<R>>
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The current elements of
source iterable modified by toElement.
Runs in parallels and return a Future<List>.
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next<V>(List<V> list, int index)
→ V?
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Returns an element following the index, if out of bounds returns null.
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previous<V>(List<V> list, int index)
→ V?
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Returns a preceding element in the index, if out of bounds returns null.
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toMap<K, V>(Iterable<V> list, GeneratorKey<V, K> generatorKey)
→ Map<K, V>
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Returns a Map with keys that's generated by generator.
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toStream<V>(Iterable<V> list, [Duration? interval])
→ Stream<V>
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Creates a stream with the items in the list.
Typedefs
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Generator<G>
= G Function(int index, G? previous, G? next)
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Type definition for callback that creates a new object based on index, previous and or next
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GeneratorKey<GV, GK>
= GK Function(GV value)
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Definition os callback that's return a key for the toMap function
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OrAdd<O>
= O Function()
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Type of the callback that's called when has no one element in firstWhereOrAdd and lastWhereOrAdd
