regular expression not working for uppercase
Testing regular expression for input text validation event
Tested with regex101 matching at least one upper case letter ^(?=.*[A-Z]).+$
But when run inside Justinmind to test input filed condition, it does not work properly.
Tested for ^(?=.*[0-9]).+$ and it works to match at least one digit.
Is there a reason and is there a better way to test for at least one upper case letter