Are these two lines the same, '? … :' vs '??'?

Question

Is there a difference between these two lines?

MyName = (s.MyName == null) ? string.Empty : s.MyName

or

MyName = s.MyName ?? st         


        

Answer 1

They accomplish the same task.

Only difference would be readability as to whether your coworkers or whomever is reading the code understands the syntax.

EDIT: Additionally the first option can evaluate the property MyName twice.