INNER CODE UNIT · Dart

elementAt

foxsofter/flutter_thrio · lib/src/collection/registry_order_map.dart:40

  MapEntry<K, V> elementAt(int index) => _list.elementAt(index);

  Iterable<K> get keys => _list.map((it) => it.key);

  Iterable<V> get values => _list.map((it) => it.value);

  V first([final K? key]) => key == null
      ? _list.first.value
      : _list.firstWhere((it) => it.key == key).value;

  V? firstOrNull([final K? key]) => key == null
      ? _list.firstOrNull?.value
      : _list.firstWhereOrNull((it) => it.key == key)?.value;

  V firstWhere(bool Function(K k) predicate) =>
      _list.firstWhere((it) => predicate(it.key)).value;

  V? firstWhereOrNull(bool Function(K k) predicate) =>

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