Error on wrong data type input
I was wondering, is there a way to prevent wrong data type input?
When I have numeric type of data and user input text, it acts differently - in one applet it starts slider, in another it change the whole field into function field and then the field stays that way after generating new task, in third it returns error message....
I suppose the problem with this is in applets where it changes the input field type and than user cannot use that applet anymore until he reload the whole page.
For example, in this applet: https://www.geogebra.org/m/XgwnfBJV
When user inputs a letter instead of number in one field it cannot be changed into correct answer anymore.
Any ideas on how to fix this or it's just the way GeoGebra works?