
Lenguaje Marcas 2ª EVA

Quiz
•
Professional Development
•
2nd Grade
•
Hard
Amelia González
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
let a=5;
{
let a=7;
}
console.log(a);
El resultado es 7
El resultado es error porqué se define la variable 2 veces.
El resultado es 5.
El resultado es 12.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
var a=5;
{
var a=7;
}
console.log(a);
El resultado es 7
El resultado es error porqué se define la variable 2 veces.
El resultado es 5.
El resultado es 12.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Indica la respuesta correcta sobre var y let
let es más moderno que var
var es más moderno que let
Los dos surgieron en la misma versión de JavaScript, pero entre uno y otro cambia el ambito.
Son exáctamente iguales.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El método getElementsByName(...)
Retorna un elemento del DOM.
Retorna un array de elementos del DOM.
Retorna un array de Strings con los nombres de los elementos del DOM.
Retorna un elemento o un array dependiendo del argumento.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
let mano = [
{"palo":"corazones","valor":2},
{"palo":"picas","valor":1},
{"palo":"treboles","valor":12},
{"palo":"corazones","valor":3}
];
Es un array de objetos String.
Es un array de arrays.
Es un array de objetos json o diccionarios.
Es un error.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
let a=3; let b=7;
do {
a++;
b--;
console.log(a);
} while (a<b);
El programa muestra los valores 4 y 5.
El programa muestra los valores 5 y 6.
El programa muestra los valores 4, 5 y 6.
El programa muestra los valores 4, 5, 6 y 7.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
let mano = [
{"palo":"corazones","valor":2},
{"palo":"picas","valor":1},
{"palo":"treboles","valor":12},
{"palo":"corazones","valor":3}
];
mano[1]["palo"] devuelve "corazones"
mano[1]["palo"] devuelve error de sintaxis.
mano[1]["palo"] devuelve 1,
mano[1]["palo"] devuelve "picas",
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