clear method

@override void clear()

Removes all entries from the map.

After this, the map is empty.

final planets = <int, String>{1: 'Mercury', 2: 'Venus', 3: 'Earth'};
planets.clear(); // {}

Implementation

@override
void clear() {
  var len = _map.length;
  if (hasObservers && len > 0) {
    _map.forEach((key, value) {
      notifyChange(MapChangeRecord<K, V>.remove(key, value));
    });
    notifyPropertyChange(#length, len, 0);
    _notifyKeysValuesChanged();
  }
  _map.clear();
}