[Lua][Question]Loading a file into a function

How can I load files into functions that are not in a folder? I used this code:

print(type(loadfile("someExistingFile")))
print(type(loadfile("rom/startup")))

Output:

nil
function

You need a valid Lua script in the file for loadstring to work.

More precisely, it is working by returning a nil as the first value. If you do "tempfunc,errmssg = loadfile("someExistingFile")", and then print errmssg if tempfunc is nil, you'll get to see what lua doesn't like about your file.

Thanks for the help, but now it somehow worked without changing any code.