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Choosing the business and monetization model of your app is vital for its success and your profits.

Both options allow you to encapsulate and reuse values and behaviors, but knowing their differences helps optimize your code

I’ll show you the keys to quickly and efficiently pass the publication review of your app in the App Store

With enumerations you can define a common type for associated values

A closure expression is a self-contained block that can be used in your code

As Functions are first-class citizens, you can enjoy its benefits

Discover the basics about input parameters in functions

Learn how you can return multiple values from a single function

Functions let us organize code, reuse it, and avoid duplications

Execute a block of code later in the program’s flow