How to Move Your App from Objective-C to Swift?

Swift allows you to write less code.

Swift is strongly typed, which means fewer crashes caused by working with types incorrectly.

Swift looks similar to other popular programming languages and resembles English.

Let’s consider what you need to do if you decide to switch from Objective-C to Swift, and determine if making the jump is the right choice for you.

This means that you can add new Swift features to an already existing codebase.

In Objective-C you can call methods on nil objects (more precisely, you can send a message to a nil object), and these methods return a zero value.