LinkedHashSet<E>.from constructor
- Iterable elements
Create a linked hash set containing all elements
.
Creates a linked hash set as by new LinkedHashSet<E>()
and adds each element of elements
to this set in the order they are iterated.
All the elements
should be instances of E
. The elements
iterable itself may have any element type, so this constructor can be used to down-cast a Set
, for example as:
Set<SuperType> superSet = ...; Iterable<SuperType> tmp = superSet.where((e) => e is SubType); Set<SubType> subSet = LinkedHashSet<SubType>.from(tmp);
Implementation
factory LinkedHashSet.from(Iterable<dynamic> elements) { LinkedHashSet<E> result = LinkedHashSet<E>(); for (final element in elements) { result.add(element as E); } return result; }
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-collection/LinkedHashSet/LinkedHashSet.from.html