Trying to write code in one line
For example, if you have following method, passing string, there're few way to handlering it.
It'll be cool to use (??), since it's kind of cool to make two question mark(??). But I'd rather use if else. If Microsoft could prove something like (?? :), which is "if it's null(??) do this, else do others.
Operators ?? also can't be overloaded. So, if you want to try something like How to OverLoading Operator.This. Which you can't do it for (??).