Applies f to each key/value pair of the map.
Calling f must not add or remove keys from the map.
void forEach(void action(K key, V value)) {
for (K key in keys) {
action(key, this[key]);
}
}
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-collection/MapMixin/forEach.html