PlayxIterableExtensions<T> extension

Extensions on Iterable class to make it easier to work with.

on

Properties

random → T?
Returns a random item from the list or null if the list is empty.
no setter

Methods

asyncMap<S>(FutureOr<S> action(T e)) → Future<List<S>>
Asynchronously map each element of this collection by action.
atOr(int index, T value) → T
Returns the element at the given index or value if the index is out of bounds of this list.
atOrNull(int index) → T?
Returns the element at the given index or null if the index is out of bounds of this list.
countNotNull() → int
Count the number of elements that are not null.
countWhere([bool predicate(T element)?]) → int
Count the number of elements that satisfy predicate predicate.
firstOr(T value) → T
Returns the first element if list is not empty. Otherwise, return value
firstOrNull() → T?
Returns first element if list is not empty.
firstWhereOr(bool predicate(T e), T value) → T
Returns the element where equals predicate or value if not found.
firstWhereOrNull(bool predicate(T e)) → T?
Returns the element where equals predicate or null if not found.
isIndexValid(int index) → bool
Checks if the item with index exists or not in the list.
lastOr(T value) → T
Returns the last element if list is not empty. Otherwise, return value
lastOrNull() → T?
Returns last element if list is not empty.
lastWhereOr(bool predicate(T e), T value) → T
Returns the element where equals predicate or value if not found.
lastWhereOrNull(bool predicate(T e)) → T?
Returns the element where equals predicate or null if not found.
mapWithIndex<E>(E mapper(int index, T element)) → List<E>
Map each element of the list to a MapEntry with it's index and returns the resulting map.
withoutDuplicate() → List<T>
Returns a new list after removing duplicates from the original list.