removeWhere method
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(String key, Object? value) test) {
final keysToRemove = <String>[];
for (final key in keys) {
if (test(key, this[key])) {
keysToRemove.add(key);
}
}
for (final key in keysToRemove) {
remove(key);
}
}