keep method

void keep(
  1. List<String> keys
)

Keep the flash data of keys for one more request.

Implementation

void keep(List<String> keys) {
  _load();
  for (String key in keys) {
    if (_flashOld.contains(key) && !_flashNew.contains(key)) {
      _flashNew.add(key);
    }
  }
  _changed = true;
}