Lesson004.md

Day 3 - 17/10/2022 Lesson 4 – type annotations and checkpoint 2

Sections here:

1. How to use type annotations - learned how to use type annotations in different cases
   • Optional: Why does Swift have type annotations?
   • Optional: Why would you want to create an empty collection?
   • Test: Type annotations

2. Summary: Complex data (Summarized complex data)
3. Checkpoint 2