1. @DomName('CharacterData.replaceData')
  2. @DocsEditable()
void replaceData(int offset, int count, String data)

Source 

@DomName('CharacterData.replaceData')
@DocsEditable()
void replaceData(int offset, int count, String data) =>
    _blink.BlinkCharacterData.instance
        .replaceData_Callback_3_(this, offset, count, data);