Namespace Types - Swift Programming

A type can group related helpers so callers use a clear prefix.

Group helpers under a type

namespace_types.swift

enum GeometryKit {
    static func rectangleArea(width: Int, height: Int) -> Int {
        return width * height
    }
}

let width = 
let height = 3
let area = GeometryKit.rectangleArea(width: width, height: height)
let label = "area=\(area)"

print(label)

enum GeometryKit {
    static func rectangleArea(width: Int, height: Int) -> Int {
        return width * height
    }
}

let width = 
let height = 3
let area = GeometryKit.rectangleArea(width: width, height: height)
let label = "area=\(area)"

print(label)

enum GeometryKit {
    static func rectangleArea(width: Int, height: Int) -> Int {
        return width * height
    }
}

let width = 
let height = 3
let area = GeometryKit.rectangleArea(width: width, height: height)
let label = "area=\(area)"

print(label)

namespace Swift modules are namespaces, and small programs can also group related static helpers under an enum or struct name.