add method
Adds an association from the given key to the given value.
Implementation
@override
void add(K key, V value) {
C collection = _map.putIfAbsent(key, _create);
_add(collection, value);
}
Adds an association from the given key to the given value.
@override
void add(K key, V value) {
C collection = _map.putIfAbsent(key, _create);
_add(collection, value);
}