What are the most common approaches to coding when using Swift?

In Swift, the following coding approaches are common:

• Using protocols and protocol-oriented programming: instead of inheritance, protocols are often used to define interfaces and behaviors.

• Optional types and safe handling of them: optionals (?) are actively used, along with if let and guard let constructs for safe value extraction.

• Functional style: applying higher-order functions (map, filter, reduce) for working with collections.

• Clean and readable code: using named parameters, abbreviations, and explicitly specifying types where it improves understanding.

• Using struct instead of class where possible: structures in Swift are value types and are often preferred for simple data models.

Example of safe optional unwrapping:

func greet(name: String?) {
    guard let unwrappedName = name else {
        print("No name provided")
        return
    }
    print("Hello, \(unwrappedName)!")
}

Such approaches make Swift code safer, more expressive, and maintainable.