Is there an easier way to write an If function where the condition is also the value if true in Microsoft Excel?

For example, I have a cell that uses an If function and the condition is a long expression (I will just refer to this as “long expression” in my example), if the condition is true it should return the long expression, if false the cell should be blank.

example:

=If(long expression > 0, long expression, “”)

Is there a shortcut with the syntax so I don’t have to write the long expression twice in the if function without storing the long expression in another cell and referencing it?