I’ve been working on getting the Ember app I work on fully type-checked in strict mode this week, and noticed something interesting along the way: there are a lot of design decisions—a few of them really core to the behavior of the app!—which we never, ever would have made if we had been using Typescript in the first place. One of these is pervasive references to certain optional properties that appear in services throughout our app—the basket, for example. These can indeed be inset a...
