With C# 9 you now have improved support for target typing. There are two new ways in which you can implement target typing — in new expressions and with conditional operators.

Operator overloading or ad-hoc polymorphism lets you work with user defined types much the same way you work with fundamental data types ...

Use a logical OR operator in conditional formatting The equality operator we used in the last section was easy to implement, but it doesn’t work as expected when applied to a single-column range.