clearLine() not in U8g2 library

Question

In 4a, 5 , void Userinterface::displayMessage(int line, String s), I need to call the clearLine method, but it isn't in the U8g2 library and it isn't in the classes. Where can I find it? I used display->clearLine();

Answer 1

That method needs a parameter. So use it like:

display->clearLine(0); // clear first line