How it works...

Although not vastly different from many languages' control statements, the basic constructs in Rust can change the way you think about variable assignments. It certainly transformed our mental models to be more data-focused. This means that instead of thinking if this condition is reached, assign this other value to a variable, a reversed assign this other value to a variable if this condition is reached—or shorter transform this variable if this condition applies—may take over. 

This is the functional stream in the Rust programming language and it lends itself well to shortening and focusing the important parts of a piece of code. Similar implications can be made from the loop constructs since everything is a scope and has a return value. Using these capabilities will make every program a lot more readable and shorter, especially if it's just simple operations. 

We've successfully learned how to control execution flow. Now, let's move on to the next recipe.