DesignPremium EpisodesS4 Premium Episode #363: Safe Navigation Part 3: Everything is Optional Avdi Grimm November 30, 2015 0 Comments Applying an approach inspired by functional programming languages to the problem of safe navigation. This page is just for members. Sign in or subscribe to gain access! Username Password * Remember Me Forgot Password Related CategoriesDesign, Premium Episodes, S4 PremiumTagsfunctional programming, oop