add method

@override void add(String field, Object? value)

Add a field and its value.

Implementation

@override
void add(String field, Object? value) {
  if (value != null) {
    if (_previousField) _result!.write(',');
    _result!
      ..write(field)
      ..write('=')
      ..write(value);
    _previousField = true;
  }
}