- How to create a dark-mode enabled app.
- How to use vector images as image assets.
- Learned to use the UITextField to get user input.
- Learned about the delegate pattern.
- Swift protocols and extensions.
- Swift guard keyword.
- Swift computed properties.
- Swift closures and completion handlers.
- Learned to use URLSession to network and make HTTP requests.
- Parsed JSON with the native Encodable and Decodable protocols.
- Learned to use Grand Central Dispatch to fetch the main thread.
- Learned to use Core Location to get the current location from the phone GPS.