Pass The Swift Code Review: Dictionary Edition

Succinct Swift Code

Difficulty: Beginner | Easy | Normal | Challenging
This article has been developed using Xcode 12.1, and Swift 5.3

Prerequisites:

• Some knowledge of Swift’s Dictionaries would be useful
• The answers here use the Ternary Operator
• Control Transfer Statements are used in the final solution
• Higher-Order functions are used in the final solution
• Reduce is used in one of the functions

Terminology

Dictionary: The association between keys and values (where all the keys are of the same type, and all values are of the same type)

Let’s go

Writing production-ready code probably requires some quotation marks. I mean, I’ve passed the Linter and managed to push code. Then I get a code review that just consists of a question mark?