state 1.0.2

An observable map

state

State is essentially an observable map, that reports changes to a stream.

Usage

import 'package:state/state.dart';

main() {

  var state = new State.fromMap({
    'key': 'initial value'
  });

  state.listen((String key, newValue, oldValue) {

    print('$key was changed from $oldValue to $newValue');
  });

  state['key'] = 'new value';
}

main() // key was changed from initial value to new value

Apply

Apply a new map to the state, and get events for all nodes that was created or changed.

state.apply({
  'new key': 'new value',
  'key': 'new value'
});