Kas sa saad seletada, mis on enum programmeerimises ja millal seda kasutatakse?

Enum (enumeration) is a special data type that allows defining a set of named constants. In iOS (Swift), enum is used to group related values under a single type, which improves code readability and safety.

Example of using enum in Swift:

enum Direction {
    case north
    case south
    case east
    case west
}

let currentDirection = Direction.north

Enums are used when it is necessary to restrict the set of possible values of a variable, such as states, directions, error types, etc. This helps prevent errors related to incorrect values and simplifies the handling of such data.