Kas saaksite selgitada, mis on easy convenience Swiftis?

In Swift, there is no concept of "fácil convenience". It might refer to "convenience initializer" — a handy initializer.

Convenience initializers are auxiliary initializers that simplify object creation by calling other designated (main) initializers within the class. They are declared with the keyword convenience and cannot directly initialize all properties of the class, only call other initializers.

Example:

class Person {
    var name: String
    var age: Int

    // Main initializer
    init(name: String, age: Int) {
        self.name = name
        self.age = age
    }

    // Convenience initializer
    convenience init(name: String) {
        self.init(name: name, age: 0) // calls the main initializer
    }
}

Thus, convenience initializers help create objects with different sets of parameters, reusing the initialization logic.