Preguntas de JavaScript

Preguntas de JavaScript

11th Grade

20 Qs

quiz-placeholder

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Preguntas de JavaScript

Preguntas de JavaScript

Assessment

Quiz

Information Technology (IT)

11th Grade

Practice Problem

Hard

Created by

Gabriel Hernandez

Used 6+ times

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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cuál es la forma correcta de declarar una variable en JavaScript?

let x;

int x;

declare x;

x = var;

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué operador se usa en JavaScript para la asignación de valores?

==

===

=

=>

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué función se utiliza en JavaScript para leer la entrada del usuario?

alert()

prompt()

read()

scan()

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cuál es la función correcta para mostrar un mensaje emergente en JavaScript?

Escribir()

write()

alert()

console.log()

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Si tienes el siguiente código: let x = 5; x = x + 3; ¿Qué valor tendrá la variable x al final?

3

5

8

15

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cómo puedes declarar una variable constante en JavaScript?

let pi = 3.14;

const pi = 3.14;

var pi = 3.14;

final pi = 3.14;

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Qué tipo de dato es el siguiente valor? let x = "Hola Mundo";

Número

Booleano

Cadena de texto

Arreglo

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