historySize method

Map<String, int?> historySize()

Returns an object with {'undo': int, 'redo': int} properties, both of which hold integers, indicating the amount of stored undo and redo operations.

Implementation

Map<String, int?> historySize() {
  JsObject result = call('historySize');

  return {
    'undo': result['undo'],
    'redo': result['redo'],
  };
}