If you have been in the Ruby community for any length of time, you have likely heard about Rack, probably along the…
Delegation in programming is simply a matter of passing responsibility to an object more suitable to handle a request. It’s good to keep things simple and delegate when you can, that’s why Ruby has made doing so easy by providing the Forwardable module.
Ruby has a nice shorthand syntax for methods that use blocks and accept Procs, which is very useful when working with enumerables e.g. each, map, reduce etc.
