NullableIterableFilteringExtensions<T> extension
Methods
-
elementAtOrNull(int index)
→ T?
-
Returns the
indexth element or null.
-
exceptNull()
→ Iterable<T>
-
Returns a new Iterable with all elements that are not null.
-
firstOrNull(bool test(T?))
→ T?
-
Returns the first element or null.
-
lastOrNull(bool test(T?))
→ T?
-
Returns the last element or null.
-
singleOrNull(bool test(T? element))
→ T?
-
Filters this iterable with all elements that satisfy the predicate
test.
Throws a StateError if the filtered iterable contains more than one element. Otherwise returns the only remaining element or null.
-
whereNull()
→ Iterable<T?>
-
Returns a new Iterable with all elements that are null.
