Que me acuerdo de JvaScript

Que me acuerdo de JvaScript

12th Grade

10 Qs

quiz-placeholder

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Que me acuerdo de JvaScript

Que me acuerdo de JvaScript

Assessment

Quiz

Computers

12th Grade

Practice Problem

Medium

Created by

Josemaría Gª de Polavieja

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. ¿Cómo se declara una variable en JavaScript clásico?

variable x = 5;

let x = 5;

var x = 5;

const x := 5;

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué imprime este código?

var saludo = "Hola";

console.log(saludo + " mundo");

Hola

Hola mundo

saludo mundo

undefined

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué estructura se usa para repetir instrucciones varias veces?

if

else

switch

for

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cuál de estas NO es una estructura condicional?

if

else

switch

repeat

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué hace document.getElementById("demo")?

Borra un elemento del DOM

Busca un elemento con id demo

Crea un nuevo elemento

Cambia el color de fondo

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué significa DOM en JavaScript?

Dynamic Object Model
Data Object Model
Document Object Model
Document Object Module

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué resultado da este código?

var x = 5;

var y = "5";

console.log(x == y);

false

true

5

error

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