One of the first things a coder notices about Swift is var and let. It seems like an odd system at first and when you add in optionals it can seem downright bizarre. Wha??? Let's start again. What is var? Var is exactly what you would expect it is...
Guard is the number one thing you can do to make you code look and feel pro! Big statement? Yes, but after you start using guard you will find your code is better in almost every way! I don't care how my code looks! It just works. Bullshit! Pretty...