Tipos de variables

Tipos de variables

JavaScript tiene los siguientes tipos de variables:

  1. Number: para números, tanto enteros como decimales.
  2. String: para cadenas de caracteres.
  3. Boolean: para valores verdaderos o falsos.
  4. Array: para almacenar una colección de valores.
  5. Object: para almacenar un conjunto de pares propiedad-valor.
  6. Symbol: para crear valores únicos.
  7. null: para indicar que una variable no tiene un valor asignado.
  8. undefined: para indicar que una variable no ha sido definida.

Ejemplo:

JavaScript
var number = 25;
var name = "Audra";
var isStudent = true;
var grades = [90, 80, 75];
var person = {firstName: "Audra", lastName: "tu guia"};
var uniqueId = Symbol("id");
var emptyValue = null;
var notDefined;

Java tiene los siguientes tipos de variables:

  1. int: para números enteros.
  2. double: para números con decimales.
  3. float: para números con decimales.
  4. char: para caracteres.
  5. String: para cadenas de caracteres.
  6. boolean: para valores verdaderos o falsos.
  7. byte: para números enteros de 8 bits.
  8. short: para números enteros de 16 bits.
  9. long: para números enteros de 64 bits.

Ejemplo:

Java
int number = 25;
double decimalNumber = 3.14;
float anotherDecimalNumber = 2.718f;
char letter = 'A';
String name = "Audra";
boolean isStudent = true;
byte smallNumber = 100;
short mediumNumber = 20000;
long largeNumber = 1000000000;

Además, en Java existen los arreglos y los objetos, los cuales pueden almacenar múltiples valores y tienen características específicas.

Ejemplo:

Java
int[] grades = {90, 80, 75};
String[] names = {"Jane", "John", "Doe"};
Person person = new Person("Jane", "Doe");

En C#, los tipos de variables son:

  • Enteros: byte, short, int, long
  • Punto flotante: float, double
  • Booleanos: bool
  • Caracteres: char
  • Cadenas: string
  • Enum: Enumeraciones personalizadas
  • Objetos: cualquier tipo de clase o estructura
  • Arreglos: Arreglos unidimensionales o multidimensionales de cualquier tipo de dato.
  • Nullable: Variables que pueden tener el valor null.
  • Dynamic: Variables cuyo tipo es determinado en tiempo de ejecución.

Además de los tipos de variables mencionados anteriormente, en C# también se pueden utilizar tipos de variables genéricos (utilizando el operador < >) y tipos de variables anónimas. También existen las variables de referencia (utilizando el operador «ref») y las variables out (utilizando el operador «out»).

Es importante también mencionar que en C#, las variables deben ser declaradas antes de ser utilizadas y deben ser asignadas un valor inicial antes de ser utilizadas en cualquier operación.

C#
// Declaración de una variable de tipo entero
int numeroEntero = 5;

// Declaración de una variable de tipo decimal
decimal numeroDecimal = 3.14;

// Declaración de una variable de tipo cadena
string cadenaTexto = "Hola mundo";

// Declaración de una variable de tipo booleano
bool verdaderoOFalso = true;

// Declaración de una variable genérica
List<int> listaEnteros = new List<int>();

// Declaración de una variable anónima
var miVariableAnonima = new { Nombre = "Juan", Edad = 30 };

// Declaración de una variable de referencia
int numero = 10;
int otroNumero = 20;
ref int numeroReferencia = ref numero;
numeroReferencia = otroNumero;

// Declaración de una variable out
int numeroSalida;
ObtenerNumero(out numeroSalida);

En C++, los tipos de variables incluyen:

  • Enteros: int, short, long, long long
  • Punto flotante: float, double
  • Caracteres: char
  • Booleanos: bool
  • Cadenas de caracteres: string

Ejemplo:

C++
int edad = 25;
float altura = 1.75;
char inicial = 'J';
bool esMayor = true;
string nombre = "Lucas";

Es importante tener en cuenta que C++ también tiene el concepto de tipos de datos personalizados (structs y clases) y punteros.

En Python, los tipos de variables incluyen:

  • Enteros: int
  • Punto flotante: float
  • Cadenas de caracteres: str
  • Booleanos: bool
  • Listas: list
  • Tuplas: tuple
  • Diccionarios: dict
  • Conjuntos: set

Ejemplo:

Python
edad = 25
altura = 1.75
inicial = 'J'
esMayor = True
nombre = "Audra"

En python no existe un tipo de dato «char» ya que las cadenas de caracteres son muy flexibles y se pueden usar para contener un solo caracter.

En PHP, los tipos de variables son:

  • Integer (número entero)
  • Float (número con decimales)
  • String (cadena de caracteres)
  • Boolean (verdadero o falso)
  • Array (colección de valores)
  • Object (objeto)
  • Resource (recurso externo, como una conexión a una base de datos)
  • NULL (valor nulo)

Ejemplo:

PHP
<?php
$numero = 5; // Integer
$decimal = 2.5; // Float
$nombre = "Juan"; // String
$verdadero = true; // Boolean
$colores = array("rojo", "verde", "azul"); // Array
class Car {
    function Car() {
        $this->model = "VW";
    }
}
$auto = new Car(); // Object
$conexion = mysqli_connect("localhost", "usuario", "contraseña", "nombre_bd"); // Resource
$sinValor = NULL; // NULL
?>
Home » Programacion » Tipos de variables
Tabla de Contenido

Contenido Adicional

1win Официальный Сайт Букмекерской Конторы 2023 Онлайн Ставки На Спорт, Вход В Бк 1вин И

1win Официальный Сайт Букмекерской Конторы 2023 Онлайн Ставки На Спорт, Вход В Бк 1вин Из Играть В Слоты И Игровые Автоматы 1вин Content Наши Бонусы Ввод И Вывод Денег Социальные Сети Для Регистрации: In Games – Софт От Онлайн Казино

Leer más »
Imagen de La Casa Matusita en Lima, Perú, un lugar misterioso con una rica historia de leyendas urbanas y fenómenos paranormales.
Historias de terror
audra

La escalofriante historia de La Casa Matusita en Perú

¡Bienvenidos, amigos, a una de las historias más escalofriantes de Perú! Hoy vamos a adentrarnos en los misterios y leyendas que rodean a la famosa Casa Matusita, un lugar que ha aterrorizado a los valientes que se han atrevido a

Leer más »

1win Скачать На Андроид Приложение 1win Android Os Apk Бесплатн

1win Скачать На Андроид Приложение 1win Android Os Apk Бесплатно Играй На Официальном Зеркале! Content Вывод Выигрыша В 1win Где Скачать Приложение 1вин На Андроид Бесплатно? Бонусы И Акции 1win Мобильное Приложение Бк Заключение: 1win — Надежный Партнер Для Любителей

Leer más »

Najlepsze Giełdy Zakładów Sportowych Porównanie I Actually Ranki

Najlepsze Giełdy Zakładów Sportowych Porównanie I Actually Rankin «zakłady Bukmacherskie W Polsce 19+ Aktualnych Bonusów Content Graj Capital T Betcris Bez Wychodzenia Z Domu — Zakłady Bukmacherskie Online Jak Zacząć Obstawiać Zakłady Bukmacherskie Przez Internet? Cashback – Zakłady Bukmacherskie Bez

Leer más »
Diseño web
diseño web
audra

Diseño web

Diseño web es una disciplina que se encarga de la creación y planificación de sitios web, asegurando que estos sean atractivos, funcionales y fáciles de navegar. El objetivo del diseño web es crear una experiencia de usuario satisfactoria, y es

Leer más »

114 comentarios

  1. Hello I am so delighted I found your weblog, I really found you by
    mistake, while I was browsing on Bing for something else, Anyhow I am here now and would just like to say many thanks for a remarkable post and a all round enjoyable blog (I also love the theme/design), I don’t have time to look over it all at the moment but I have saved it and also added your RSS feeds, so when I have time I will be
    back to read a great deal more, Please do keep up the great work.

  2. Excellent post. I was checking continuously this blog
    and I’m impressed! Very useful info specially the last
    part 🙂 I care for such information much. I was seeking
    this particular info for a long time. Thank you and good luck.

  3. Hi there! I know this is kinda off topic however I’d figured I’d ask.

    Would you be interested in trading links or maybe guest writing a blog post or vice-versa?
    My website addresses a lot of the same subjects as yours and I think we could greatly
    benefit from each other. If you are interested feel
    free to shoot me an email. I look forward to hearing from you!
    Awesome blog by the way!

  4. That is very interesting, Yoou are a veryy skilled
    blogger. I have joined your rss feesd annd stay up for in quest of extra of your great post.
    Also, I’ve shared yoyr website in mmy social networks

  5. Hey! Someone iin mmy Myspace grroup sharedd this website wit us so I came too give it a look.
    I’m definitely loving the information. I’m book-marking andd will be tweweting this to my followers!
    Terrrific blog and antastic design and style.

  6. I am extremely impressed wth ykur writin skills as
    neatly as with the formst in your weblog. Is that thgis
    a paid subject orr did youu customize it yourself?

    Anyway stay up the exccellent quality writing, it’s rafe too peer
    a nicce blog like thjis one nowadays..

  7. hello there annd thank yoou ffor you info – I’ve definitely piked up anything nnew from right here.
    I did however expertise a few technucal iasues using this website, since I experiennced to
    relad the web site many times previojs to I could geet itt to load correctly.
    I hadd beenn wonderjng iff your web host is OK? Noot that I am complaining, buut slow loading instannces timews will sometimes affect your placement
    in google and cold dqmage your high quality sore iif ads and marketing with
    Adwords. Welll I’m adding this RSS to my e-mail aand could look
    out for a loot more oof your respective fascinting content.
    Ensure hat yoou update this again very soon.

  8. naturally like your web site however you need to take a look at the spelling on several of your posts. A number of them are rife with spelling problems and I find it very bothersome to tell the truth on the other hand I will surely come again again.

  9. You’re so awesome! I don’t believe I have read a single thing like that before. So great to find someone with some original thoughts on this topic. Really.. thank you for starting this up. This website is something that is needed on the internet, someone with a little originality!

  10. You’re so awesome! I don’t believe I have read a single thing like that before. So great to find someone with some original thoughts on this topic. Really.. thank you for starting this up. This website is something that is needed on the internet, someone with a little originality!

  11. This is really interesting, You’re a very skilled blogger. I’ve joined your feed and look forward to seeking more of your magnificent post. Also, I’ve shared your site in my social networks!

  12. Try to slowly read the articles on this website, don’t just comment, I think the posts on this page are very helpful, because I understand the intent of the author of this article.

  13. You’re so awesome! I don’t believe I have read a single thing like that before. So great to find someone with some original thoughts on this topic. Really.. thank you for starting this up. This website is something that is needed on the internet, someone with a little originality!

  14. naturally like your web site however you need to take a look at the spelling on several of your posts. A number of them are rife with spelling problems and I find it very bothersome to tell the truth on the other hand I will surely come again again.

  15. I’m often to blogging and i really appreciate your content. The article has actually peaks my interest. I’m going to bookmark your web site and maintain checking for brand spanking new information.

  16. Try to slowly read the articles on this website, don’t just comment, I think the posts on this page are very helpful, because I understand the intent of the author of this article.

  17. I’m often to blogging and i really appreciate your content. The article has actually peaks my interest. I’m going to bookmark your web site and maintain checking for brand spanking new information.

  18. Write more, thats all I have to say. Literally, it seems as
    though you relied on the video to make your point.

    You clearly know what youre talking about, why waste your intelligence
    on just posting videos to your weblog when you could be
    giving us something enlightening to read?

  19. This is really interesting, You’re a very skilled blogger. I’ve joined your feed and look forward to seeking more of your magnificent post. Also, I’ve shared your site in my social networks!

  20. This is really interesting, You’re a very skilled blogger. I’ve joined your feed and look forward to seeking more of your magnificent post. Also, I’ve shared your site in my social networks!

  21. naturally like your web site however you need to take a look at the spelling on several of your posts. A number of them are rife with spelling problems and I find it very bothersome to tell the truth on the other hand I will surely come again again.

  22. You’re so awesome! I don’t believe I have read a single thing like that before. So great to find someone with some original thoughts on this topic. Really.. thank you for starting this up. This website is something that is needed on the internet, someone with a little originality!

  23. Thanks for a marvelous posting! I genuinely enjoyed reading it, you are a great author.I will always bookmark your blog and will often come back down the road. I want to encourage continue your great job, have a nice weekend!

Deja una respuesta

Tu dirección de correo electrónico no será publicada. Los campos obligatorios están marcados con *