0.7.0-dev.1

KtDart makes full use of darts static extension methods, introduced with Dart 2.6.

The public API stays unchanged and is backwards compatible.

Improved interopt with dart collections

It is now easier then ever to convert dart to ktdart collections and vice versa. Use the .kt property to convert dart collections to KtDart collections. (Note: .kt create a view, which allows you to mutate the original dart collection).

  // New: Make dart collections immutable
  final KtList<String> list = ["hey"].immutable();
  final KtSet<String> set = {"hey"}.immutable();
  final KtMap<String, int> map = {"hey": 1}.immutable();

  // New: Converting dart collections to KtDart collections (mutable views)
  final KtMutableList<String> ktList = ["hey"].kt;
  final KtMutableSet<String> ktSet = {"hey"}.kt;
  final KtMutableMap<String, int> ktMap = {"hey": 1}.kt;

  // Converting KtDart collections to dart collections
  final List<String> dartList = KtList.of("hey").asList();
  final Set<String> dartSet = KtSet.of("hey").asSet();
  final Map<String, int> dartMap = KtMap.from({"hey": 1}).asMap();

Tuple improvements

KtPairs can now created with the T0.to(T1) extension.

final KtPair<String, int> pair = "foo".to(42);

Also, KtPair and KtTriple now have a new toList() function to convert the values to a KtList.

New Extensions

• KtList?.orEmpty() returns an empty list when the list is null
• KtSet?.orEmpty() returns an empty set when the set is null
• KtMap?.orEmpty() returns an empty map when the map is null
• KtMap.ifEmpty(() -> defaultValue) returns the default value when the map is empty
• KtIterable<KtIterable<T>>.flatten() flattens the nested collections to KtIterable<T>
• KtIterable<KtPair<T, U>>.unzip(): KtPair<KtList<T>, KtList<U>> unzips list of pairs to list of their first and second values
• KtIterable<Comparable<T>>.min() returns the smallest element of any comparable iterable
• KtIterable<Comparable<T>>.max() returns the largest element of any comparable iterable

Upgrade

dependencies:
  kt_dart: ^0.7.0-dev.1