removeWhere method
Removes all elements of this set that satisfy test
.
final characters = <String>{'A', 'B', 'C'};
characters.removeWhere((element) => element.startsWith('B'));
print(characters); // {A, C}
Implementation
void removeWhere(bool Function(E element) test) {
if (value == null) return;
update((_) => value!.removeWhere(test));
}