I need this as poster over my monitor

Thank you for your articles, they're very helpful! 🙏

Thanks!
The app is really tiny though. I was surprised I had 20+ warnings in such a small project. I guess an average codebase I worked on in the past would have hundreds or even thousands.

So, this thread isn't about efficient variable declarations (the compiler optimizes those anyway). It's about how you can't really measure performance reliably in a Swift playground.

Immediately I thought I learned about an efficient way of variable declarations. But after digging a bit deeper, I realized the issue was with Swift playground itself. It's not a real runtime environment, and its internal workings affect performance.