containsAll method Null safety
override
Returns whether this Set contains all the elements of other.
Implementation
bool containsAll(Iterable<Object?> other) {
for (var o in other) {
if (!contains(o)) return false;
}
return true;
}Returns whether this Set contains all the elements of other.
bool containsAll(Iterable<Object?> other) {
for (var o in other) {
if (!contains(o)) return false;
}
return true;
}