
Cuestionario de JavaScript - Repaso Examen
Authored by Manolo Mux
Computers
8th Grade
Used 2+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
¿Qué característica tiene JavaScript que lo hace diferente de otros lenguajes de programación?
Es un lenguaje interpretado y basado en eventos.
Es un lenguaje compilado.
Es un lenguaje de tipado estático.
2.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
¿Cuál de los siguientes métodos permite seleccionar múltiples elementos en el DOM?
document.getElementById()
document.querySelectorAll('.clase')
document.querySelector()
3.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
¿Cómo se define una variable que no cambia su valor en JavaScript?
const
let
var
4.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
¿Qué diferencia hay entre let y var en JavaScript?
let tiene alcance de bloque, mientras que var tiene alcance de función.
let y var son equivalentes.
var tiene alcance de bloque, mientras que let tiene alcance de función.
5.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
¿Qué método se usa para cambiar el contenido de un elemento en el DOM?
element.innerHTML = 'Nuevo contenido';
element.setContent('Nuevo contenido');
element.changeContent('Nuevo contenido');
6.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Las Arrow Functions tienen su propio this.
Verdadero
Falso
7.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
En JavaScript, null y undefined significan lo mismo.
Verdadero
Falso
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