Swift

If you've ever written a for loop just to build a new array from an existing one, there's a better way.

You've got an array full of data. You only want some of it. That's exactly what Swift's filter is for.

Learn how optional chaining safely accesses properties, methods, and subscripts when a value might be nil.

Learn how Swift's nil coalescing operator returns a default value when an optional is nil.

Here's an early look at Swift Macros, a feature introduced at WWDC 2023 to reduce boilerplate code and make repetitive Swift patterns easier to manage.

Learn how closures let you store, pass, and run blocks of Swift code without giving every block a separate function name.

Learn how Swift functions help you organize code, reduce repetition, and turn repeated steps into reusable actions.

Learn how Swift switch statements can match ranges of values, not just one exact value at a time.

Learn how to group multiple switch cases together so related values can run the same code without repeating yourself.