
Preguntas de JavaScript
Quiz
•
Computers
•
University
•
Practice Problem
•
Medium
Camila Reyes
Used 1+ times
FREE Resource
Enhance your content in a minute
19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué comando en JavaScript muestra un mensaje emergente en la pantalla del navegador?
console.log()
alert()
print()
message()
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué palabra clave se utiliza para declarar una variable cuyo valor puede cambiar?
const
let
var
change
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué palabra clave se usa para declarar una constante en JavaScript?
var
let
const
fixed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el valor de la variable nombreUsuario después de ejecutar el siguiente código? let nombreUsuario = 'Camila'; nombreUsuario = 'Cantera';
Cantera
Camila
undefined
null
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Es correcto intentar cambiar el valor de una constante en JavaScript?
Sí
No
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué imprime el siguiente código en la consola? const pais = 'Colombia'; console.log(pais);
Colombia
undefined
null
Colombiano
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué operador se utiliza para sumar dos números en JavaScript?
-
*
/
+
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