contains method Null safety

  1. @override
bool contains(
  1. Object? element
)
override

Whether value is in the set.

final characters = <String>{'A', 'B', 'C'};
final containsB = characters.contains('B'); // true
final containsD = characters.contains('D'); // false

Implementation

@override
bool contains(Object? element) => _sets.any((set) => set.contains(element));