We all compare data on nearly every other line in our code, be it input validation, an if-statement, a switch or determining what to display and how.
So of course we are all experts on how to do these comparisons…. Or are we?

 

http://youtu.be/faZGa2uSts4?list=PLmmVKoOOmweMrNQzziuGLP4ay9nrw8mQQ