¿Cuál es la sintaxis correcta para referirse a un ID de un elemento HTML externo en JavaScript?
JavaScript

Quiz
•
Computers
•
12th Grade
•
Easy
Esteban Cuenca
Used 4+ times
FREE Resource
36 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
getElement("demo")
document.getElementById("demo")
document.getElement("demo")
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se declara una variable en JavaScript?
var miVariable;
variable miVariable;
declare miVariable;
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes opciones es una forma válida de declarar una función en JavaScript?
func miFuncion() { }
def miFuncion() { }
function miFuncion() { }
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes operadores compara dos valores y devuelve true si son iguales y false si no lo son?
==
===
=
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la sintaxis correcta para agregar un manejador de eventos a un elemento HTML en JavaScript?
elemento.onClick("click", miFuncion);
elemento.addEventListener("click", miFuncion);
elemento.attachEvent("click", miFuncion);
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué método de Array invierte el orden de los elementos de un array?
reverse()
invert()
flip()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes opciones es la sintaxis correcta para establecer un temporizador en JavaScript que se ejecute una vez después de un intervalo de tiempo especificado?
delay(miFuncion, 3000);
setInterval(miFuncion, 3000);
setTimeout(miFuncion, 3000);
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