The map entries of this.
Iterable<MapEntry<K, V>> get entries { return keys.map((K key) => new MapEntry<K, V>(key, this[key])); }
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-collection/MapMixin/entries.html