Swift

At WWDC 2026, Apple shipped a small change with surprisingly big consequences. Let me explain the LanguageModel protocol the way I wish someone had explained it to me.

Regex looks like keyboard mash the first time you see it. But once it clicks, it becomes one of the most useful tools in your Swift toolkit.

You write the cleanup code right after the messy part. Swift makes sure it actually runs, no matter what happens.

A structured, lesson-by-lesson guide to learning the Swift programming language. Each lesson takes about 30 minutes, includes real code you can run, and ends with a challenge to test yourself.

Your app froze. The spinner is spinning and spinning. You can’t click anything. Somewhere in your code, a loop is running forever — and now you need to understand why.

Some code decisions are simple enough to fit on one line. The Swift ternary operator is how you write them.

You’ve probably never thought about what happens to a variable after you’re done using it. The consume operator lets you tell Swift exactly when you’re finished, and the compiler will hold you to it.

You’ve probably used a singleton without realizing it. Every time you write UserDefaults.standard or URLSession.shared, that’s a singleton at work.

If you’ve been learning Swift for a little while, you’ve probably heard the word “protocol” It’s actually one of the most useful tools in the Swift language