Introducción a JavaScript
¿Por qué aprender JavaScript?
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¡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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Logical operators are fundamental for handling conditions and making decisions in our programs. There are three of them: AND, OR and NOT. These operators allow us to validate multiple conditions simultaneously or individually. Understanding how they work will help us improve the logic of our programming and allow us to create more robust systems.
The AND operator is used when we want to check if multiple conditions are true at the same time. If all the conditions being evaluated are true, the result will be true
; otherwise, it will be false
.
For example, consider the following constant values in a JavaScript code:
const A = 10;const B = 20;const C = "10";
If we want to check if A
is equal to B
and A
is also strictly equal to C
, our code would be:
if (A === B && A === C) { // Code to execute if both are equal}
In this case, the result would be false
because, although the value of A
is 10 and matches the numeric value of C
, they are not of the same type (the former is a number and the latter is a string).
The OR operator is useful when we want at least one of several conditions to be true. If at least one condition is true, the result will be true
.
Following the example above:
if (A !== B || A == C) { // Code to execute if at least one condition is true}
From this code, true
results because A
is indeed different from B
. Although A
is not equal to C
in type, the OR operator only needs one of the conditions to be met.
The NOT operator is very useful when we want to reverse the result of an evaluation. If we apply NOT to a condition, we turn true
into false
and vice versa.
Let's take the following example:
if (!(A === C)) { // Code to execute if A is NOT equal to C}
Here, A === C
is false
because they are not of the same data type, but by applying the NOT operator, the end result is true
.
In software development, logical operators are essential for constructing complex algorithms that require conditional decisions. These decisions are not limited only to numerical operations; they expand to input parameter validation, error handling, and the application of business logic in software systems, among others.
Mastering these operators increases our ability to handle complex situations within code and better prepares us to meet the challenges of software development.
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