Check whether string exists in a string, no matter if uppercase/lowercase/mixed?

Question

I want to check, if a string exists in another string, but when I search for the string, I can only get a confirmation, when the string is exactly the same. How can I bypass that?

Answer 1

Try this, it checks whether string is contained in string2 (case insensitive) after verifying they are different :

string != string2 and str.lower(string) in str.lower(string2)