This is the 5th post in the Exercises in Programming Style focus series. This week, the chapter is named 'Kick forward'. The style’s constraint is not to call a function directly, but to pass it to the next function as a parameter, to be called later. I’m not sure whether the concept of higher-order functions has its roots in Functional Programming. However, the concept itself is easy to grasp. A higher-order function can be used as a function parameter - or as a return value - of ano