method check

Source

bool check(String font, [String text]) {
  if (text != null) {
    return _blink.BlinkFontFaceSet.instance.check_Callback_2_(unwrap_jso(this), font, text);
  }
  return _blink.BlinkFontFaceSet.instance.check_Callback_1_(unwrap_jso(this), font);
}