“JavaScript Keypress -Rückraum funktioniert nicht” Code-Antworten

JavaScript Keypress -Rückraum funktioniert nicht

Try "onkeydown" instead of "onkeypress".

KeyPress event is invoked only for character (printable) keys, 
KeyDown event is raised for all including nonprintable such as Control, 
Shift, Alt, BackSpace, etc.