getValues method
Get the current values of all existing form attributes.
The getValues function is used to retrieve the current values of all
existing form attributes. It creates a copy of the _values map, removes
entries for attributes that do not exist in the _attributes map, and returns
the resulting map of attribute-value pairs.
Returns: A map of form attribute identifiers to their corresponding current values.
Implementation
Map<String, dynamic> getValues() {
final Map<String, dynamic> values = Map.from(_values);
values.removeWhere((key, value) => !_attributes.containsKey(key));
return values;
}