if, match, functions, and scope blocks all have a unique way of returning values in Rust.
If the last statement in an if, match, function, or scope block is an expression without
a ;, Rust will return it as a value from the block. This
is a great way to create concise logic that returns a value that can be put into
a new variable.
Notice that it also allows an if statement to operate like a concise ternary expression.