removeWhere method

  1. @override
void removeWhere(
  1. bool test(
    1. K key,
    2. V value
    )
)

Removes all entries of this map that satisfy the given test.

final terrestrial = <int, String>{1: 'Mercury', 2: 'Venus', 3: 'Earth'};
terrestrial.removeWhere((key, value) => value.startsWith('E'));
print(terrestrial); // {1: Mercury, 2: Venus}

Implementation

@override
void removeWhere(bool Function(K key, V value) test) {
  final length = super.length;
  super.removeWhere(test);
  if (length != super.length) {
    notifyListeners();
  }
}