Imperative vs. Functional Swift Programming

What are they? Which should you use?

Photo by Scott Graham on Unsplash

This article contains content previously published on Medium

Difficulty: Beginner | Easy | Normal | Challenging

This article is best used in conjunction with the Swift Playground which can be found here: https://github.com/stevencurtis/SwiftCoding/tree/master/ImperativeVsFunctional

Prerequisite Articles:

• Coding in Swift Playgrounds will help you be able to use the playground available for you to download
• Using SwiftUI in Playgrounds will help you use Playgrounds with SwiftUI
• Map is used within the article, as are Arrays and for loops

Terminology

Declarative programming: a programming paradigm which expresses a computation directly as pure functional transformation of data

Functional programming: a form of declarative programming. In itself, a programming paradigm which uses statements to change state