Извлекать общие элементы из списков DART
// you can use fold and set
main() {
final lists = [
[1, 2, 3, 55, 7, 99, 21],
[1, 4, 7, 65, 99, 20, 21],
[0, 2, 6, 7, 21, 99, 26]
];
final commonElements =
lists.fold<Set>(
lists.first.toSet(),
(a, b) => a.intersection(b.toSet()));
print(commonElements);
}
// gives {7, 99, 21}
FunnyPointerException :|)