Introducci贸n a Swift y XCode
Swift y el ecosistema Apple
Instalaci贸n y configuraci贸n de XCode
Quiz: Introducci贸n a Swift y XCode
Fundamentos de programaci贸n iOS
Variables, constantes y tipos de datos b谩sicos
Condicionales
Funciones
Tipos de datos opcionales
Arreglos: append, insert, como crearlas
Arreglos: validar, editar y agregar una lista dentro de otra lista
Conjuntos: como agregar o eliminar elementos
Conjuntos: principales operaciones entre conjuntos
Diccionarios
Recorridos parte 1: while
Recorridos parte 2: for
Recorridos parte 3: los retos
Quiz: Fundamentos de programaci贸n iOS
POO en iOS
Programaci贸n orientada a objetos en iOS
Structs
Clases y herencia
Enums
Protocolos
Funciones de arreglos (filter, map, reduce)
Funciones de arreglos parte 2 (filter, map, reduce): playground
Quiz: POO en iOS
Manejo de errores y programaci贸n segura
Manejo de errores y programaci贸n segura
Propagaci贸n de errores
Do, try, catch
Quiz: Manejo de errores y programaci贸n segura
Programaci贸n en el ecosistema de Apple
Siguientes pasos para el desarrollo en iOS
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Removing elements from an array in Swift is a fundamental process for managing dynamic data lists. To achieve this, you can use different methods depending on your specific needs:
Remove by index in the list: you can remove a specific element from an array using its index.
fruits.remove(at: 2)
This method removes the element at the specified position. For example, if we want to remove the fruit at position 2 (considering that the count starts at zero), we must use fruits.remove(at: 2)
. Note that knowing the exact index of the element can be complicated.
Remove the last element: The removeLast()
function is useful to quickly remove the last element of the array.
fruits.removeLast().
Remove all elements: If you need to clean up an array completely, use removeAll()
.
fruits.removeAll()
This leaves the array completely empty, ideal for restarting the list.
Integrating elements from one list into another in Swift is a simple process thanks to the features the language offers:
Use append(contentsOf:)
: This function allows you to add all the elements of one list inside another.
fruits.append(contentsOf: newFruits)
For example, if you have an array newFruits
with elements like "orange" and "peach", using fruits.append(contentsOf: newFruits)
adds these elements to fruits
.
Checking whether an array contains a specific element is a common operation when working with lists. In Swift, you can do this in a simple way using the contains(_: )
function.
Use contains(_: )
: This function returns a boolean value indicating whether or not the element exists in the array.
let existsStrawberry = fruits.contains("strawberry")
let existsBanana = fruits.contains("banana")
In the example, existsStrawberry
will be true
if "strawberry" is in the array fruits
, while existsBanana
will return false
if "banana" is not present. It is important to remember that the function is case sensitive; "Strawberry" with uppercase is not the same as "strawberry" in lowercase.
When working with text strings, be sure to consider capitalization differences. Although Swift differentiates between them, later on, it is possible to learn how to handle these variants for more flexible comparisons.
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