hasChanged property

@override bool get hasChanged

Gets a value that indicates if a change has occurred.

Implementation

@override
bool get hasChanged {
  if (_cancellationTokenSource != null &&
      _cancellationTokenSource!.token.isCancellationRequested) {
    return true;
  }

  for (var i = 0; i < _changeTokens.length; i++) {
    if (_changeTokens[i].hasChanged) {
      onChange(this);
      return true;
    }
  }
  return false;
}