Applies f to each key/value pair of the map.
Calling f must not add or remove keys from the map.
void forEach(void f(K key, V value)) {
  Iterator<_SplayTreeNode<K>> nodes = _SplayTreeNodeIterator<K>(this);
  while (nodes.moveNext()) {
    _SplayTreeMapNode<K, V> node = nodes.current;
    f(node.key, node.value);
  }
}
    © 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/SplayTreeMap/forEach.html