Watched Building Reactive Applications With Combine What Is Reactive Programming, then Combine First-Class Functions and Function Types and Pure Functions and Higher-Order Functions. Nothing new in either.

Watched Tips and Tricks: Removing String Literals, then Using a Branching Strategy That Works. Nothing new in both.

Watched Tips and Tricks: Using didSet Property Observers to Configure Outlets. Completely makes sense!

Watched Why You Should Default to Private Outlets. Obvious.

Watched Five Simple Tips to Improve the Code You Write. The first tip suggesting using switch instead of if statement with boolean condition I find stupid. The rest tips make sense.

Watched Ten Xcode Tricks Every Developer Should Know. Tip of showing callers in assistant editor is useful.

Watched Managing Build Configurations in Xcode. This is extremely useful!