
Prog Web U3
Authored by Angel Torres
Computers
University

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el tipo de dato que NO existe en JavaScript?
String
Integer
Boolean
Undefined
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué operador se utiliza para comparar tanto el valor como el tipo en JavaScript?
==
=
===
!==
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se declara una variable que su valor no debería cambiar en JavaScript?
var
let
const
fixed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes NO es una característica de JavaScript?
Tipado dinámico
Multihilo
Orientado a objetos
Interpretado
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué estructura se utiliza para iterar sobre las propiedades de un objeto en JavaScript?
for
while
for-in
forEach
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué método se puede utilizar para agregar un elemento al final de un array en JavaScript?
push()
pop()
shift()
unshift()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes afirmaciones es verdadera sobre el 'scope' o alcance de una variable definida con 'let' en JavaScript?
Puede ser accedida globalmente en todo el script.
Solo puede ser accedida dentro de la función donde fue declarada.
Solo puede ser accedida dentro del bloque donde fue declarada.
No tiene restricciones de alcance.
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