sortedmap 0.5.4 copy "sortedmap: ^0.5.4" to clipboard
sortedmap: ^0.5.4 copied to clipboard

A map of objects which can be sorted and filtered on both their key and value

Contains a SortedMap and FilteredMap class, which hold a map of objects that can be ordered relative to each other.

Unlike SplayTreeMap the objects can be ordered on both key and value or a combination of both.

The FilteredMap also allows to specify an isValid function on key/value pairs and limit the number of objects allowed in the map.

SortedMap #

A simple usage example:

import 'package:sortedmap/sortedmap.dart';

main() {
  var map = new SortedMap(Ordering.byValue());
  
  map.addAll({
    "a": 3,
    "b": 2,
    "c": 4,
    "d": 1
  });
  
  print(map.lastKeyBefore("c")); // a
  print(map.firstKeyAfter("d")); // b
  
}

FilteredMap #

A simple usage example:

import 'package:sortedmap/sortedmap.dart';

main() {
  var map = new FilteredMap(new Filter(
    compare: (Pair a, Pair b)=>Comparable.compare(a.value, b.value),
    isValid: (Pair v) => v.key!="b",
    limit: 2));
  
  map.addAll({
    "a": 3,
    "b": 2,
    "c": 4,
    "d": 1
  });
  
  print(map.keys); // (d, a)
  
}

Features and bugs #

Please file feature requests and bugs at the issue tracker.

43
likes
130
pub points
89%
popularity

Publisher

verified publisherappsup.be

A map of objects which can be sorted and filtered on both their key and value

Repository (GitHub)
View/report issues

Documentation

API reference

License

BSD-3-Clause (license)

Dependencies

quiver

More

Packages that depend on sortedmap