This post has been updated for Swift 3.0 here. This post has been updated for Swift 3.0 here. Swift has an interesting multi-pronged approach to dealing with default and optional function parameters, based in part on its relationship with Objective C and…
STOP PRESS: Updated for Swift 2.0 here! How function parameters work in Swift can be a little confusing, here’s an attempt to make it clearer: 1. func By default parameters of funcs do not have external names: If you want…
Methods in Objective C are actually called messages but they’re often referred to as methods, a more commonly used terminology. Optional parameters are treated in an interesting way in Objective C. Basically there are no optional parameters! In fact the…
