cyberespia
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| func imprimirMensaje(mensaje: String, veces: Int) { | |
| for i in 0..<veces { | |
| print("\(i) \(mensaje)") | |
| } | |
| } | |
| imprimirMensaje(mensaje: "Hola baby", veces: 3) | |
| // 0 Hola baby | |
| // 1 Hola baby | |
| // 2 Hola baby |
cyberespia
/ opcional.swift
Last active
November 8, 2017 05:26
Extrayendo el valor de una variable opcional en swift
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| var altura:Int? = 40 // declaro una variable opcional y asigno un valor | |
| altura! + 10 // para poder hacer esta suma es necesario extraer (unwrapping) del valor del opcional agregando ! (si no se hace da error) |
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| let edad = 75 | |
| switch edad { | |
| case 0: | |
| print("recien nacido") | |
| case 1...12: | |
| print("Niño") | |
| case 13...18: | |
| print("Adolescente") | |
| case ...65: // One-Sided Ranges solo en Swift 4. | |
| print("Adulto") |