Introducción a JavaScript
¿Por qué aprender JavaScript?
¡Hola Mundo! en Mac
¡Hola Mundo! en Windows
Anatomía de una variable
Tipos de datos en JavaScript
Creación de strings
Operadores aritméticos
Conversión de tipos: Type Casting y Coerción
Conversión de tipos explícita e implícita
Estructuras de Control y Lógica
Operadores de comparación
Operadores lógicos
Ejecución condicional: if
Ejercicio: Adivina el número
Ejecución condicional: switch
Loop: for
Loop: for of
Loop: for in
Loop: while
Loop: do while
Funciones y This
Anatomía de una función
Funciones vs Métodos
Funciones puras e impuras
Arrow function y enlace léxico
Contextos de ejecución y scope chain
¿Qué es Closure?
Preguntas a Desarrolladores Senior: ¿Por qué aprender Desarrollo Web?
Manipulación de Arrays
Introducción a Arrays
Mutabilidad e inmutabilidad de Arrays
Modificación básica del final con push( ), pop( )
Iteración con map( ) y forEach( )
Filtrado y reducción con filter( ) y reduce( )
Búsqueda de elementos con find( ) y findIndex( )
Crear copias con slice( )
Spread operator: casos de uso
Programación Orientada a Objetos
Anatomía de un Objeto
Trabajando con objetos en JavaScript
Función constructora
¿Qué es una clase?
Prototipos y herencias
Herencia en la práctica
Prototipos en la práctica
this en JavaScript
Proyecto: Crea una red social
Proyecto: Crea una red social parte 2
Asincronía en JavaScript
¿Cómo funciona el JavaScript Engine?
Promesas en JavaScript
Usando Async y await en JavaScript
For await of
¿Cómo funciona la web?
¿Cómo funciona HTTP?
Método GET en JavaScript
Método POST en JavaScript
Método DELETE en JavaScript
Importancia del id en el método DELETE
ECMAScript 6 y tus siguientes pasos
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What are objects in programming?
Objects in programming are data structures that allow us to store information in an organized way. They work with a key-value structure, where each key is associated with a value, which helps us to maintain a collection of related data in a coherent way.
Objects not only store data, they can also contain methods that are actions executable by the object itself. This ability to store both data and behavior makes objects versatile and powerful tools in many programming languages.
How to create an object in JavaScript?
Creating an object in JavaScript starts by declaring a constant and using braces to define properties and methods within the object. Here's how:
const person = { name: 'John', age: 30, address: { street: { street: 'Avenida Insurgentes', number: 187, city: 'Mexico City' }, greet: function() { console.log(`Hello, my name is ${this.name}`); } } };In this example, we have created an object called person with properties such as name, age and address. In addition, the greet method prints a message using the name property.
How to work with object methods?
Methods on an object are created as functions within the object. These methods allow the object to perform actions using its own properties.
To execute the greet method of the person object, we simply call:
person.greet(); // Print: Hello, my name is John.This code executes the action defined in the greet method, displaying the greeting with the person's name.
How to add and delete properties and methods?
Adding properties and methods
Adding new properties or methods to an existing object is easy. You just need to use the dot operator (.) followed by the name of the new property or method:
person.phone = '555-555-5555';
person.goodbye = () => { console.log('Goodbye');};
console.log(person.phone); // Print: 555-555-5555person.goodbye(); // Print: Goodbye.Deleting properties and methods
To delete a property or method from an object, use the delete keyword:
delete person.phone;deleteperson.fire;With this, the properties or methods are removed from the object, and will no longer be accessible.
Objects are fundamental in many programming paradigms, especially in object-oriented paradigms. They allow you to create real-world models in code, handling both data and functionality. Remember that as a programmer, mastering objects and their manipulations opens the door to developing more complete and robust applications. Keep exploring and experimenting to strengthen your skills!
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