Returns a new set with the elements of this that are not in other
.
That is, the returned set contains all the elements of this Set that are not elements of other
according to other.contains
.
Set<E> difference(Set<Object> other) { Set<E> result = toSet(); for (E element in this) { if (other.contains(element)) result.remove(element); } return result; }
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-collection/SetMixin/difference.html