A concise Swift playground exploring array properties and methods — append, remove, sorted, contains, firstIndex.

A concise, runnable Swift Playground demonstrating how to force unwrap optionals in Swift.

Swift Playground demonstrating the self keyword to disambiguate properties inside struct initializers.

A concise Swift Playground demonstrating protocols: parameter types, struct conformance, inheritance, and methods.

A concise, runnable Swift playground demonstrating access-control levels (private, public) on a struct.

A concise, runnable Swift example demonstrating struct initializers, memberwise init, custom init, and extensions.

A concise, runnable Swift Playground demonstrating failable initializers (init?) in Swift

A concise, runnable Swift playground demonstrating the nil-coalescing operator (??) with a fallback example.

Swift playground demonstrating implicitly unwrapped optionals (Type!) and the nil-access caveat

A concise Swift playground demonstrating for-in, while, and repeat-while loops — a beginner learning example.

A concise, runnable Swift playground demonstrating optional chaining (the ? operator)

A concise, runnable Xcode Playground demonstrating Swift enums — simple cases and associated values.

A concise, runnable Swift Playground demonstrating optional unwrapping with guard let

A concise, runnable Swift Playground demonstrating static (type) properties in a struct.

A concise, runnable Swift Playground demonstrating optional types and nil handling in Swift

A concise Swift Playground demonstrating computed and stored properties.

A simple swift task that returns the second smallest element in an array