A situation that most Swift developers will encounter at one point or another is when some form of type erasure is needed to be able to reference a generic protocol. This week, let’s start by taking a look at what makes type erasure such an essential technique in Swift, and then explore different “flavors” of implementing it — and how each flavor comes with its own set of pros and cons.

View models attempt to make it easier to write and maintain view-specific logic, by introducing dedicated types for it. This week, let’s take a look at a few different ways that various flavors of view models can be implemented in Swift.

Just like with most programming techniques, there are multiple "flavors" of dependency injection - each with its own pros and cons. This week, let's take a look at three such flavors and how they can be used in Swift.